chasm

chasm — a local-first, game-agnostic AI backend for agentic NPCs. Connect any game with a mod (or build one on it); chasm provides the LLM, cloned voices, memory, and in-world actions.

chasm is the backend, not a game. It turns game characters into AI agents: walk up to a character, speak to them with your own voice, and they reply — in their own cloned voice, generated live by a local LLM that knows who they are, where they are, and what's happening around them. Then they go further and do things in the world: follow you, hand over an item, loot a body, draw on someone, walk across town to meet you at a set time, play a song. Over a playthrough they build memories of what they witnessed, form opinions, and — genuinely unscripted — start developing habits of their own.