Alternatives to Marathon 2

First-person shooter, first in a trilogy

First-person shooter, third in a trilogy

Open-source continuation of Bungie's Marathon 2 game engine

Arena-style first person shooter

2D and 3D game engine

Playstation 2 Emulator

Real-time strategy game engine for Westwood games

GameStream client

Video game digital distribution service

Game launcher

First person shooter engine

Frontend for emulators, game engines and media players (OpenGL graphics API)