Running 5E D&D using the siege engine.

Can the siege engine that powers castles and crusades be used to run 5E D&D?

I belive it can very easily. First assign prime attributes. One by class, second by choice.

Second ignore proficiency bonus (except for combat, more on this later).

If a player rolls on a skill he has add his level. Otherwise just d20+ability mod.

Proficiency bonus is now strictly to hit bonus for all classes.

Thats really it.

Now here is a twist:
Prime attributes add level to rolls.
Having a skill or not decides the difficulty of all rolls. 18 for not having a skill, 12 if you have it.

Adrenaline Rush, Fighter (C&C)

New ability for fighters.

At level 3 fighters gain the ability to call on their reserve of fortitude to see themselves through. Once per battle at the start of their turn when they start with half their hit points or less they can activate adrenalin rush.

Adrenaline rush allows the recovery of 1HD+Con mod. In hit points. As well as +2 damage to the first attack that same turn.

How the Siege Engine works.

I was recently told that my post on how the Siege engine that powers Castles and Crusades, Amazing Adventures, and Harvesters works is too "wordy". So what follows is my simple "how it works".

Difficulty of rolls:
At character creation some attributes are designated primary and others secondary.

Rolls against a primary attribute start at a difficulty 12, secondary are difficulty 18. This is the base complexity class (CC).

The GM then applies any complications as a complexity level. For example Dex (primary 12) roll for picking a CL4 lock would be (CC) difficulty 16.

How to make an attribute roll:
First the appropriate attribute is chosen for the roll. The player rolls a D20 and adds the modifier for the attribute. If the roll being made is either covered by a class ability, knowledge, or action appropriate to the class add the characters level to the roll as well. Thats it.

D20+Ability Mod+Level
V.S.
Base CC + CL

Thats it......

Just as added examples, if you were to get stung by a giant scorpion, and it was HD 3. 3 would be the CL for the constitution save.

Tanner's hammer (Amazing Adventure)

This pistol was forged and assembled by the pirate turn monster hunter Angus Jackson "jack" Tanner. Blessed by his first mate, Reverend Robbert "Rob" miller. It's said that after every kill Tanner would soak silver coins coins in blood of his prey. The coins would then be melted to make bullets. When fired from Tanners gun these bullets become bane to the creature whos blood it soaked in. (+3, x3 on crit, counts as magic).

69 cal., 9" bbl. Pistol with checkered wood grips & snobble forend, wedge bbl. fastener, engraved back action locks.

Dark Journey DA1 (mini review)

Dark Journey DA1 is your classic dungeon crawl. For 3-5 characters that are levels 1-4. By classic I mean it's exactly what you want in a dungeon crawl.

The hook or premise of the adventure is that the dungeon was once home to a powerful wizard who has long since gone on a great journey.  It is now populated with all kinds of humanoids and creatures.

The maps are excellently layed out and populated. Descriptions are plentiful and clorful. The inhabitants are classic monsters; orcs, goblins, skeletons, and others. In true C&C style stat blocks are simple and basic. 

If your looking for an old school dungeon crawl I don't think they get much better than Dark Journey. 

l've even used parts of this adventure as temples and ruins dedicated to ancient gods for my Amazing Adventures game.

DA1 could easily be used with any number of retro or classic D&D editions. Also looking over the adventure I see nothing that would not fit necely in D&D 5E with absolutely no effort. 

Mask of demonic form. (Amazing Adventures & Castles and Crusades)

The origin of these masks are not known. Only six masks are known to exist, each identical in shape and size. By simply placing the mask over your face and looking through the eye sockets the user can see signs of demonic influence. Some examples; a red mist seeping from the ear of one who is being manipulated by a Temptation demon. Those possessed are been with a ghostly visage around them. Those who have given themselves over to demonic forced are seen with a vile black sludge oozing from their body.

Within each mask is a name. If the name is spoken while the make is worn it bonds to the users face and transforms them into a Bone demon form. A gruesome humanoid with bone spines from knuckles, shoulders, spine, head, and knees. Worn armors and clothing are destroyed in the transformation.

Bone demon form is AC 18, 1d4 dmg on a slam (shoulder, head butt, back) and 1d6 on a strike.
+4 to all saves vs fire or necrotic sources.

Callahan's Arc Rifle

Built by the prolific gadgeteer Arnesto Callahan. Built and designed in his own lab. One of a kind.

Firing the rifle has the same effect as casting Chain Lightning (lv6) effect as if level 8 caster, Cost 4 as it was built be an NPC. The gun has a flaw that Callahan could never quite fix, after being fired twice in an hour the gun gets very hot and must cool before being used. If a third shot made within the hour a vital part burns out. This will take an hour to repair, sucessful jury rig roll, and 1d4-1(minimum 1)x10 dollars in parts.

Devouring blade

This blade was forged for the great thief and assassin Alsheud. The blade is said to consume a small piece of the victims soul, in doing so it becomes a bane towards that target. After a successful Back attack or Sneak attack the blade becomes attuned to that target. Attunment lasts for 12 hrs or until the targets dies. A new attunment can't take place til the first has ended.

Before attunment: +1 hit, 1d4 as a normal dagger. Also against nonattuned targets.

Attuned: against attuned target only, +2 hit, 1d6, 30' Rng.

Vambracer of Vampiric Hunger (Cursed Item)

The vambracer of Vampiric hunger.
This cursed item has no legends or oragins known. Its as if its dark will simply wished it's self in to existence. Once placed on ones wrist the vambracer can only be removed by very powerful magics.

Stats: +1AC, +2AC vs Radiant or holy sources.

In use:
Every time the player does damage (rolled a damage die) they are healed 1hp. But any and all healing actually harms instead, equal to the amout of HP that should have been healed, even natural healing. Even natural resting drains life and only drawing blood will heal. 

Hacking Castles and Crusades.

I've been inspired by a great many games. Some leave their mark but for whatever reason fade from my table. Some I get an idea or two from but don't really care for some other aspect of the game. I've done a few house rules posts here and there for C&C. But I think its time I put more into them. make some real hacks for C&C. One reason I haven't is because Troll lord games already did a lot of that in the Castle keepers guide. They tore apart the Siege engine and put it back together again in different ways. They did such an amazing job of it I hate to reinvent the wheel so to speak. At some point I will do just that, But instead of hashing over already covered ground I will propose a few alternate resolution methods to replace the Siege engine.

I've been running a bit of 5E D&D and find a few of its components interesting.With both C&C and 5E being so modular I think a few of these components could easily be used in C&C. So here they are, C&C style.

BOON: This is a mechanic by which players are reworded for good role-playing. They gain a boon as a reward that can be spent at a later time to give themselves and one time re-roll choosing the best of the two rolls. Players can not stock pile boons, they either have a boon or they don't. Players may give other players their boon if they feel the player does something truly 'inspiring'.

Bonus/Penalty roll: Any time a player has a bonus or penalty to a roll +/-3 or greater the GM can call for Bonus or penalty roll instead of imposing the bonus/penalty. Instead the roll is treated as a re-roll. the player re-rolls the dice. If the roll was a penalty roll the player must keep the lower of the two rolls. If the roll was a bonus roll he keeps the greater of the two rolls.

More to come!

Why I still Castles & Crusades.

I've ranted before about how I'm constantly purging my gaming books. If any books/system sits on my shelf for any long period of time I get rid of them.

Today I was looking over my C&C books and something dawned on me. Although I haven't run C&C in a while I've been using the books constantly.

When I ran my Swords & wizardry game. It was a C&C adventure I ran.
When I ran basic fantasy game I used the codex books. When I ran my last 3e game I borrowed heavily from many C&C book and used bluffside as the setting. Even now in my 5E game I using many of my C&C books.

Without even mentioning the core mechanic of the system (Siege engine) Castles & crusades is a d20 system designed using the srd to replicate the feel of older editions of D&D. This makes it a middle ground system. Compatible with very little work with old school editions and its clones. Compatible with most everything with material from the d20 era games. And even close enough to draw inspiration and resources for use with 5E.

As for the core mechanics that make up the siege engine. They are modular enough to change to taste. The castle keepers guide has a lot of options for changing the siege engine to the system that works best for your style and preference. Most of the core rules of 5E were already in use in C&C. Other 5E mechanics like inspiration, advantage, and disadvantage could all be used in C&C with little to no changes. Flexability through being modular.

I might like a lot of different games. I run a lot of other games. But it seems C&C has become a major tool in my tool box. Not just another game.

Alternate magic rules for C&C

I have NEVER been a fan of fire and forget magic of D&D. Even back in the day we used to come up with spell point systems. To each their own and all that jazz, its just not my cup of tea. Ive used a lot of systems over the years but never found one that stuck around for too long and often would resort back to RAW for lack of better options.

In my latest campaign I chose to use Amazing adventures spell casting rules for C&C. And its working out really well. Being the avid tinkerer though I cant resist playing with the system at least a little.

In our games spells are still memorized, but Mana points is spent on casting like in AA. So the average spell cast is a force of will, pure magic shaped to the need of the caster using a formula he has learned. This type of casting requires no components and cost spell level + one in mana points. Memorized spells are treated as a primary trait roll.

Next is ritual casting. Ritual casting is slower, taking at least one full turn. A circle of power or some other magical symbols are scribed on a surface, often the surface being effected. Components are needed (and often consumed) to ritual cast. Circles of power add a bonus based on how elaborate, and components based on how valuable they are. Mana cost to ritual cast is one half rounded down.

Ritual casting can allow a magic user access to spells that are not memorized. Allowing the magic user to cast straight from his spell book. These follow all the rules of ritual casting but are treated as nonprimary for purpose of base difficulty to cast and cost full mana points.

Ritual casting is also being added to my Amazing Adventures games.

Advanced Magic rules for Amazing Adventures.

I really love the spell crafting rules for Amazing adventures. They has become my preferred spell casting rules for both Amazing Adventures and Castles & crusades. I have been playing around with those rules for a bit now. Trying a few house rules to add to them.

The very first thing I added was the rule of 5. Any spell craft roll that is five over its intended target will only cost the characters 1/2 the MEP needed to cast the spell. The character cannot attempt the roll unless he has enough MEP to cast the spell normally.

My second addition to the rules is that any arcanist over the level of 5 can cast 0 level spells at the cost of 0 MEP. A spell crafting roll is still made as normal. but MEP is never spent. And this level the arcanist is skilled enough that most 0 level spells are muscle memory and so elementary they are at little if not no risk to the arcanist.

For my third house rule, on any spellcraft roll of a natural 1 the arcanist has made a critical error in his channeling of the spell being cast. The arcanist loses double the amount of MEP as the cost of the spell, the spell fails, and the character loses hit points equal to the level of the spell. The flip side is also true, on a natural 20 on a spellcraft roll the character casts the spell at a cost of 0 MEP, And through a surge of power gains MEP equal to twice the level of the spell not to exceed his maximum MEP.

This final rule is only available after level five. The arcanist may choose to "push" a spell that scales. For example a spell that does 1d6 dmg per arcanist level. The arcanist can choose to cast the spell as if it were 1-3 levels higher than he is. Each "pushed" level adds a CL of 2 per level rather than 1. The MEP cost will be equal to the final level of the spell plus levels it was pushed plus one.

For example an arcanist is casting a spell that is level 3 that does 1d6 damage per level of the caster. The situation is dire so the arcanist decides to "push" his power up three levels. Making his spell as if cast by a level 6 arcanist. The CL of the spellcraft roll would be 3 + 6 +1. Three for the normal casting of a third level spell, And six more for twice the level the spell was pushed. MEP cost will be 10.

Damage reduction revisited

I have been thinking about a damage reduction. With most forms of damage reduction a rating is assigned and reduced from any damage a character may take. For example is a character has a damage reduction of two. And would normally take five damage, that damage would be reduced to three as the two would be subtracted from the damage assigned.

While I think this is a simple and easy to track mechanic. I find it troublesome. At low levels and lower damage dice, damage rating is powerful. A high damage reduction at lower levels is very powerful. So damage rating has to be watched or it can unbalance a game quickly.

At higher levels lower damage ratings is very underpowered. If damage rating scales with level than the character becomes a Juggernaut and ignores all weaker attacks.

My proposal for an alternate damage reduction is that any natural roll equal or less than the rating is ignored. On a damage reduction of 1 any natural roll of one on a damage die is read as 0, all bonuses to damage are ignored and no damage is taken.

This applies to all damage dice individually. If 3d6 is rolled for damage. And the target has a damage reduction of 2 all die rolled 2 or less is ignored and only the remaining dice are added up. For example:

3D6 damage is rolled, the dice come up 2, 4, and 6. Since the target has a damage reduction of 2, the die that rolled a 2 is removed and only the 4 and 6 are counted resulting in a damage roll of 10.

This does make damage reduction powerful. so each point of damage reduction should really be thought of as x1.5 to x2 as powerful as the last and given very sparingly. But even at low levels damage reduction is still a benefit to higher level characters. And a 4-6 damage reduction is equally super human to low and high level characters.

Expanded Races: Granite Dwarves

Expanded Races looks to be another great little supplement for the castles and crusades system, brought to us by Christina Stiles Presents.

Created by Brian Boostra, Hal Greenburg, & Peter Schroeder

Edited by Christina Stiles

Art and Layout by Peter Bradly 

(Disclaimer: Once again, this with a lot of my mini reviews will be done in my usual gushing fanboy style.)

 Granite Dwarves is just six pages including cover, Acknowledgements, and OGL, which take up the first two pages. The four remaining pages are dense with information and a very good read.

Pages three and first half of four go into the "fluff" of the Granite dwarf race. Description, personality, racial affinity, and environment are all covered. The information given is colorful and at the same time to the point. The Granite dwarves are fleshed out enough for use as characters and NPCs, plenty of material for players and CKs alike.

Second half of page four starts into the "mechanics" of the race. With a large section devoted to racial traits and abilities. My impression after reading this was that "these are dwarves". These are the dwarves of the deep places I want in my game. From now on these are my dwarves, Ill be using the dwarf writeup in the PH for those that have chosen to live in the human lands and not of "true" dwarven stock.

Rounding out page four is the usual C&C racial information. Languages, size, movement, typical classes, attribute mods, and ability modifiers are all included.

On the fifth page is the "optional" section. As with the Fantasy races unlocked: Kobolds there is six racial traits that can be chosen, each replaces a set racial trait from the "stock" Granite dwarf profile. All six seem well thought out and interesting.

Next to the optional traits there are two examples of Granite dwarves. The two "typical" Granite dwarves are of a level one fighter and a level five cleric. Both could be used for a quick NPC or an adversary.

The last section of of page five is an "encounters with Granite dwarves" entry. This section will be most useful for CKs wanting to run Granite dwarves as NPCs or adversaries. This is the kind of entry you would find in a monster manual.

The sixth and last page is a bonus page of sorts. It seems the Granite dwarves have an adversary, The Frigid, goblins. This page has a full monster write up for these nasty little creatures who love the taste of Granite dwarf flesh. Also located on the page is two items of note., two magic items that seamlessly fit into the setting that would include Granite dwarves.

Expanded Race! Granite Dwarves is easily worth the 2$ price tag on Rpgnow.com. 
But there is more!!

Christina Stiles Presents & Arcana Creations team up to bring a bundle suitable for tundra terrains.
This bundle includes Expanded Races Granite Dwarves  and  A Trick on the Tain. For just 5.50$ on RPGnow.com

I'm really hoping to see more C&C goods from Christina Stiles Presents.
Now that I have been introduced to adventures from Arcana Creations I will be picking them up, Reviews incoming.

Fantasy races unlocked: Kobolds

New third party support for Castles and crusades! I'm happy to have in my hands. Fantasy races unlocked, this is the first in the line of additional races for Castles and crusades by Christina Stiles Presents, I for one am not disappointed.

Written and edited by Cristina stiles

Art, Layout, and Production by Peter Bradly

(Disclaimer: This with a lot of my mini reviews will be done in my usual gushing fanboy style.)

Being only four pages including cover, Acknowledgements, and OGL, the real meat and potatoes of this product is just two pages long. But its a good solid two pages.

Starting out the first page the Kobold race is fleshed out, with entries for Description, Society, Personality, Racial affinity, And environment. This "fluff" section feels just right. Its not too wordy or vague. Giving Players and CK's enough to work with to make Kobold players, NPCs, or Monsters.

On the second page is the "mechanics" of the race. This includes 6 racial abilities. Also included in this page are the usual attribute modifiers and class bonuses as found in any C&C race.

What really stands out in this product is the "Optional" section. This is a list of optional racial traits (6 to be exact) that can be traded for one of the 6 racial abilities in the above section. Each one replaces a specific racial trait in the "generic" kobold racial ability list. This adds a lot of variety to the race. Each option can represent a separate subrace, or a bloodline. Or possibly kobolds from different regions of the campaign world. There is a good chance some Kobold variants will make their way into my Amazing Adventures game as well. Change around a few racial abilities and Ive got all sorts of monsters for my next game.

And its only 2$ at Rpgnow.com! With more products for The castles and crusades game to be announced.

Castle Keepers Guide

A while back I did a very short shout out for the Castle Keepers Guide. I really don't feel like I gave it the attentions it deserves. So I thought I would come back to it and give a further and more in depth overview of this book. (or at least scratch the surface a little deeper.)

The castle keepers guide is the long awaited Game Masters guide for the castles and crusades roleplaying game. Although I myself only got into Castles and crusades a short time before the book came out I could not escape the posts and complaints about how long it took this book to come out. I just wanted to get that out of the way before saying I think this book would be worth the wait, but really should not say it since I was not one of the people who had to wait for it.

The book is a pretty massive tomb, covering a lot of ground. The only GM guide I feel has tried to cover this much in one volume was the 1E AD&D Game masters guide. And at the end of the day I think the CKG just might cover more.

The best way for me to prove this theory of mine is to give you a chapter by chapter and section by section breakdown of the CKG. Give you some idea of exactly how much gaming goodness is in this book.

The book starts off with 8 pages that include table of contents, acknowledgments, and introduction.

PART 1: The Characters.
Chapter 1: Expanding characters.
>>Starts right off with attributes, both alternate ways to generate them and alternate modifiers for them.
>>Adding a seventh attribute, Beauty.
>>Extended class levels, This includes rules for leveling characters up to levl24.
>>Expanding races, From vital info, to the under the hood of race creation and variants.

Chapter 2: Magic.
>>This first section focuses on tools of the trade, Spellbooks and components needed for casting.
>>>This includes price lists and tables for determining number of spells found in a tomb.
>>>Also includes a table of costs for holy symbols.
>>Next is an alternate magic system. Its a spell slot system.

Chapter 3: Expanding equipment.
>>First section is a guide for ropleplaying equipment. As well as price lists for commonly needed items.
>>This next section is a carrying capacity system. With cargo capacity for all kinds of transportation.
>>Contains optional rules for maintaining equipment.

Chapter 4: Non-player Characters.
>>A fairly large section with advice on use of NPCs in your game.
>>Rules for hiring henchmen.
>>Hirelings and loyalty ratings.

Part 2: Worlds of Adventure.
Chapter 5: Worlds of adventure, World.
>>Planning, developing and exploring your game world. This section would surly be invaluable for those creating their own world. Options for picking everything from weather patterns to technology level.

 Chapter 6: Worlds of Adventure, City.
>>Economics and urban landscape.
>>Structure and governments.
>>The urban landscape.
>>Culture.

Chapter 7: Worlds of Adventure, Dungeons.
>>Covers landscape and types of underground dwellings.
>>Typical adventures underground.
>>Listen bonuses for monster types.
>>Lists of traps and types of traps.

Chapter 8: Air and Water Adventure.
>>Rules and information on vessels and water based adventures.

Chapter 9: Equipment Wastage.
>>Expands the rules of use, weathering and wastage of equipment in the course of adventures. 
>>Effects of different environments of common items.

Chapter 10: Land as Treasure.
>>This chapter is all about using land and titles as reward for your adventures. Titles by class is a great touch in this section.

Chapter 11: Going to War.
>>This is a mass combat section. Rules for squad ratios, Troop types,Movement, and conditions.
>>Rules for moral.
>>Rules for siege on castles and walls.

Chapter 12: Monster Ecology.
>>Monsters concepts.
>>Attributes and ecology of monsters.
>>Monster Alignment.
>>A lot of hints and trips for using monsters in your games.
>>Random monster tables divided by tier.

Chapter 13: Expanding the genera.
>>This section is all about taking your game outside of the medieval or fantasy pigeon hole.
>>Information for running C&C in different settings, Ages and styles.
>>Firearms rules. From black powder to laser pistols.
>>Grenade and rocket rules. Rules for mishaps.

Part 3: The Siege Engine.

Chapter 14: Advancing the game.
>>Advice and guidelines to help plan adventures.
>>Advice for setting mood and play style.
>>Setting perimeters for to keep the game with in your chosen play style.

Chapter 15: the Siege Engine.
>> This whole section is an analysis and in depth look at the core mechanics of C&C, the siege engine.
>> Alternate methods and difficulty levels are discussed at length.
>> A lot of options for customizing the siege engine to your own taste.

Chapter 16: Treasure.
>> Guidelines and hints for handling all manor of non-magical treasure. From gold to gems.

Chapter 17: Iron and Sulfur, Combat.
>> Advice and options for running combat.
>>> Optional rules for expanding combat, Even the roleplay aspects of combat.

Chapter 18: Skill Packages.
>> Secondary skill system. Much like the proficiency system of 1E.
>> Advantages, Abilities much like feats in 3E, But more closely tied to race, class or background rather than a just a laundry list of feats.

Chapter 18: Character Death and Fate.
>>This section goes into the impact of wounds and negative hit points.
>> Divine intervention.
>> The use of Luck points.
>> Use of Hero points.
>> Death & Dying, how to look at it from an PRG perspective.

Pages 280-288 is Index and tables Index.

Siege Engine, Castles and crusades

What is the Siege Engine that powers Castles and Crusades, Amazing Adventures, Harvesters and other Siege powered games?

This is a post I have wanted to do for a while. Mostly so that I can link to it when trying to explain how the siege engine works and why I like it.

First off the game itself is an OGL based game. That emulates the feel of the first edition of AD&D. As I like to say, Its 1E with 3E math.

Where the siege engine comes in is the choosing of "primes". Some ability scores are prime while others are secondary. 3 primes for humans. 2 for other races to balance racial abilities.

One prime is chosen by your choice of class. Others are chosen by the player. The difficulty of almost any given roll will be based on the ability score it is based on. If the ability is secondary the difficulty base will be 18. If the ability score is primary the base difficulty will be 12.

Beyond mechanics primes/secondary choices are also a great layer of customization. For example a thief with a primary of charisma could be a smooth operating, fast talking, confidence man. While a thief with strength as a prime could be a thug, relying on force and muscle to "get the job done".

Next comes class skills, a lot of people seem to be under he impression that Castles & Crusades does not have skills. Rather Castles and Crusades focuses more on what skills your class excels at, but doesn't limit the character to what they can attempt.

Since a characters level is the measure of prowess in his chosen class, level is added to all rolls for class skills. Also skills are linked to an ability. For example Pick lock (Dex). Helping to quickly identify which class the skill is based on.

Lastly is the complexity level. This is a modifier to the difficulty base. This number is chosen by the CK or based on the action attempted.

Ill give a few example rolls to help show how all this comes together to make a fast and intuitive system.

For example, A level 4 Human Rogue with primes of Dex (+1), Con, Char (+1), Secondary of Int, Wis+2, Cha is attempting a few skill rolls.

Attempting to pick a lock: For the Rogue this is a class skill and a Dex based skill, which is prime for the Rogue. The lock is a moderate difficult lock CL 3. So the final difficulty is 15 (12 for prime +CL3).
The player would roll a d20+ 4(his level)+1(Dex ability modifier) and try to beat the 15 difficulty.

Attempting to track an enemy: For the Rogue this not a class skill and is a Wis based skill, which is secondary ability for the Rogue. The tracks are fresh and a fairly easy read CL 0. So the final difficulty is 18 (18 for seconary +CL0). The player would roll a d20+ (no level added, not a class skill)+2(Wis ability modifier) and try to beat the 18 difficulty.

Attempting to decipher script: For the Rogue this a class skill and is an Int based skill, which is secondary Ability for the Rogue. The script is somwhat familiar to the Rogue so its fairly easy  CL 1. The final difficulty is 19 (18 for secondary +CL1). The player would roll a d20+ (+4 level added, it is a class skill)+0(Int ability modifier) and try to beat the 19 difficulty.

Also as a note monsters use number of hit die as level and are designated primes as "physical, Mental, Or Both". With stat blocks like that of 1E AD&D. Making most "old school" monsters a snap to use.

Another note is that Amazing Adventures is a Pulp Era game that also uses the Siege engine. Instead of the 12/18 split for prime/secondary AA uses a single Difficulty of 15. With a +5 bonus for primary.

Because so much of the game is OGL based. And at the same time draws so much inspiration from previous editions of D&D it is very easy to use what you like from these other games. If you like feats you can add them. Like secondary skills or proficiency slots? use them too. 

 As far as I can tell Troll lord games was the first to use the OGL to emulate an older style of D&D experience. First by just stripping down the system and using it as a simpler form of D20. These stripped down adventures and modual came out at the same Gen Con that 3rd edition of Dungeons and Dragons was revealed. Later with the addition of the siege roll and its own players handbook the game took on a life of its own. While others used the OGL to replicate the rules of older editions or D&D, C&C used the OGL to replicate the feel of AD&D while leaving most of the rules clearly d20. And it really has taken on a life of its own. C&C has grown and changed, Their products continue to improve and grow. To many of us C&C is no longer an emulator, But rather a great game in its own right.

List of games that use the Siege Engine:
Castles and Crusades: This is the fantasy game with 1E sensibility and 3E math. 
Amazing Adventures: A pulp era game using a variation of the siege engine.
Harvesters: This is a game about anthropomorphic animals. Its uses a race as class vary close to an older edition of D&D. 
Star Siege: this is a sci-fi game, At its core it is a siege game, But it is not a level based system. Its point buy, from character to gear its all customizable.


 

One Die to rule them all

After reading through the Mutants and masterminds 3E players book, I was reminded how this game played  using a single d20. Which is not new to me. I ran M&M 2E and True20 before that.

So I got thinking. Why couldn't I do the same with Castles and Crusades or Amazing Adventures? After all the core of the Siege system is a single d20 roll. The main use any other die roll is variable damage.

So I started thinking.  if I was to use just a d20 to run C&C and AA how would I do it?

I would make all damage equal to the average of a the die roll. 2 for d4, 3 for d6, 4 for d8, 5 for d10, and 6 for d12. And bonus would still be added. So d6+2 would be 5.

On any roll to hit that is 5 greater than the roll needed the damage would instead be maximum damage. 4 on a d4 or 6 on a d6...ect ect.

On a natural 20 damage will be 1.5 of max damage. 6 on a d4, 9 on a d6, 12 on a d8..ect, ect.

Amazing Adventures, Dieselpunk inspiration

GammaGaunt of Dr. Grutton

This full arm gauntlet has a small sliver of plutonium powering it, The plutonium has been bombarded with gamma rays. When used it sends out a green gamma bolt of radiation. The bolt is wild and resembles green lightning.  (As the lv3 lightning bolt spell, This Item is a lv4 build, As a free action a light spell can be uses as a "lower setting" (free) use)