The games-engines category contains game engines.
| box2d | A C++ engine for simulating rigid bodies in 2D games |
|---|---|
| devilutionx | Diablo engine for modern operating systems |
| exult | an Ultima 7 game engine that runs on modern operating systems |
| frobtads | Curses-based interpreter and dev tools for TADS 2 and TADS 3 text adventures |
| frotz | Interpreter for Z-code based text games |
| gargoyle | An Interactive Fiction (IF) player supporting all major formats |
| gemrb | Reimplementation of the Infinity engine |
| love | A framework for 2D games in Lua |
| nazghul | A computer role-playing game (CRPG) engine with game called HaximA |
| odamex | Online multiplayer free software engine for DOOM |
| openmw | Open source reimplementation of TES III: Morrowind |
| openxcom | An open-source reimplementation of the popular UFO: Enemy Unknown |
| qtads | Multimedia interpreter for TADS text adventures |
| renpy | Visual novel engine written in python |
| residualvm | A cross-platform 3D game interpreter for play LucasArts' LUA-based 3D adventures |
| scummvm | Reimplementation of the SCUMM game engine used in Lucasarts adventures |
| scummvm-tools | utilities for the SCUMM game engine |
| solarus | An open-source Zelda-like 2D game engine |
| stratagus | A realtime strategy game engine |
| xzip | X interface to Z-code based text games |
| zoom | A fast, clean, modern Z-code interpreter for X |