About the Game
Boundless AI Fantasy is an indie RPG that combines AI-driven roleplaying with tactical turn-based combat. Players can design their own campaigns, characters, locations, and stories through the editor, then watch as language models narrate and evolve these stories as they play, delivering a personalized, dynamic adventure. When conflict arises, dive into tactical turn-based combat on an isometric grid.
Narrative Quality
• By crafting your own world through the editor, you not only unleash your creativity but also give the model more to work with: the locations, characters and backstories you write are handed to the AI as the context it narrates from.
Turn-Based Tactical Combat
• Isometric, Grid-Based Battles: Press the Start Combat button any time the AI is idle; the view shifts to an isometric grid battlefield built from your current location, with the characters around you. Coordinate movement, exploit range, deploy skills. Characters earn EXP and level up from combat victories and quest completion.
World & Campaign Creation
• Customizable Campaigns through the editor: Design campaigns from scratch, define locations, world descriptions and create characters with stats, background descriptions, and skills.
Local AI
AI models run locally on your own machine, no cloud, no subscriptions, no account, no API key, and no data leaving your PC. Two open-source models (Google Gemma 4 (e2b and e4b)) ship with the game. You can also configure the game to use your own model: any model in a format accepted by HuggingFace Transformers or GGUF with llama.cpp.
This game is a personal project done fully by a single developer.
Screenshots
11 images
Version Information
Steam Patch Notes
Official update history
Thanks to everyone who bought Boundless AI Fantasy. I consider the launch a success, and I'm really grateful for your support.
Based on the players comments and feedbacks:
Fixes on launch:
- On launch day, 11/09/2026, a llama.cpp bug stopped the AI engine from loading for some players. I shipped a hotfix the same day.
- On day two, 12/09/2026, I focused on making the game run better on Linux with proton.
Minor Update 14/09/2026:
- Preserve empty lines and paragraph spacing in AI narration, thinking, combat, location, and quest messages.
- Loading screen now shows live what it is trully doing while entering a campaign.
- Enforce Location-only world-map spawns, normalize invalid legacy spawns, and improve spawn targeting and marker rendering.
- Reworked a little the main narration prompt to make it more creative and less constrained.
- Improved slightly the thinking format of characters.
- Fix for a bug (The AI models would continue running after going back to main screen, now when going to main screen it stops completely instead of running in the background)
- Inside assets folder there is a README.md file with the parameters for arts png/gifs if you want to make your own art and use it in the game.
Minor Update 19/09/2026:
- Added an in-game MCP editor server: while the game runs, external AI agents (Hermes, Claude, Codex, etc.) can connect over HTTP and create/edit characters, skills, locations, grid maps, quests and campaigns directly. It is on by default and full setup instructions are in MCP_SERVER.md. It is secure, only works on agents on your machine. It doesn't work on gameplay for roleplaying, just entity building, this was done because some players were already doing this without any help with their outside agents. The game does not make any outside calls just offers these tools to help.
- Added support for llama-config.json: advanced users can now tweak raw llama.cpp parameters (context size, threads, GPU layers, sampling).
- A few minor bugfixes and optimizations.
What's Next?
I've started planning the next major update, tentatively called the Living World Update.
The goal is to make the game more dynamic, reactive, and alive.
Which includes:
- Better interaction with party members;
- Party management;
- Separation of neutral/enemy NPCs;
- Generation of characters, skills, campaigns... on editor using the AI in the game;
- Live generation creating characters, skills, automatically and changing locations through text context alone...
These features are still in the planning stage, so the scope and implementation may change during development.
Current Release
Build 25311417
Uploaded Sep 15, 2026
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System Requirements
How to Install
BoundlessAIFantasy.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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Download Boundless AI Fantasy for PC with a direct link or via torrent. Get the full version of Boundless AI Fantasy for free. Boundless AI Fantasy is a Adventure released by João Vitor Andrioli de Souza.