A downloadable Enemy A.I. Rules

Buy Now$4.99 USD or more

If you're a member of a marginalized community and/or are facing financial hardship, you can opt-in for a discount of 40% off by clicking here. No judgment, no questions asked. 

June 10 2020: Monster A.I. has been updated to version 1.5, now with a new GM-less Oracle for solo and cooperative role-playing.

Monster A.I. is a ruleset for using automated enemies in your tactical tabletop role-playing games. Monster A.I. is highly compatible with many RPGs, and hackable to fit your game systems and settings. Monster A.I. is great for solo and GM-less gameplay and for players who want their combat to feel more like their favorite Strategy RPG video games like Final Fantasy Tactics or XCOM. Monster A.I. makes it easy to program your own monsters to work with your preferred systems, whether you use d20s or no dice at all.

In this product you get the complete rules, an example of play, a guide to programming your own monster A.I., 11 unique A.I.s for the Goblin and Orc factions for level 1 and 2 encounters, and a blank template for creating your custom A.I.

Here's how it works. In Monster A.I. each monster type has a unique A.I. scheme containing its stats and a list of A.I. behaviors. A monster chooses its actions based on fulfilling the condition tied to that set of actions. A condition can be a special rule such as "If this creature has half or less HP" or "If an ally died this round", or it can be a proximity condition (symbolized by a hex with a number or range of number in it). With proximity conditions, we check to see if there are any targetable enemies within that many number of spaces away from the monster. When a condition is fulfilled, the monster performs that action. It's a very similar system to one used in the board game Sword and Sorcery.

The second half of the rules are the ones for pathfinding. These were liberally borrowed from (and improved upon) the board game Gloomhaven. Gloomhaven has a robust set of rules that control pathfinding and movement, but that game uses random cards to determine what actions the monster takes. This can make for unpredictable enemies, but the AI tended to be inscrutable and often did some nonsensical things on their turns. Monster A.I. fixes those problems by applying a deterministic set of A.I. behaviors to the monster's actions. The monsters make their decisions logically.

It's a rather elegant system, and I've included a one-page guide to creating your own monster A.I.s with the rules. I think you'll agree that Monster A.I. is the best A.I. tool in tabletop gaming currently on the market.

Kind words said about Monster A.I.

"Monster AI is extremely cool... It's just one of those really sharp ideas that comes at games from a different direction than you usually see." – Bret Gillan (The Final Girl)

"How many nights do we all cancel 'cause someone can't make it? Well, tools like this are how we can play #ttrpgs without even needing other people! I really like this technique and layout of information, it puts it all right in front of you. Def. worth a look" – Natalie Ash (Ember + Ash, So You've Been Thrown Down a Well)

“I’ve been waiting for something like this for ages. Brilliantly designed, easy to use, and applicable in almost any system.” – Dai Shugars (GMDK)

"Yo anyone who ever complains about prep: this is a nifty tool" – Fiona Maeve Geist (Mothership: Dead Planet)

"I like what I see and I want to see more of it... This type of asset could help so many kids and adults that have a strong desire to play TTRPGs but can't defeat their social anxiety." – Deviston (Cobalt Sage Creations)


Buy Now$4.99 USD or more

In order to download this Enemy A.I. Rules you must purchase it at or above the minimum price of $4.99 USD. You will get access to the following files:

Monster A.I. Goblins and Orcs v 1.5.1.pdf 3 MB

Development log

Leave a comment

Log in with itch.io to leave a comment.