Obsidian2D game engine for CC:Tweaked

ECS architecture, a retained renderer with RGB colours and subpixels, and a documented API that stays in sync with the source.

Entity Component System

Entities, components and systems with spatial queries, triggers, raycasting and line-of-sight built in.

Layered surfaces with z-ordering, logical RGB colours mapped onto the terminal palette, and a 2x3 subpixel canvas compiled into mosaic characters.

Scenes, tilemaps, physics, particles, tweens, timers, pathfinding, audio, networking, an in-game console and a panic screen.

Every page here is produced from the LuaLS annotations in the sources, so the reference cannot drift away from the code.