Alternatives to Endless Sky

High-DPI plugin for Endless Sky

Open-source transport simulation game

Real-time strategy game engine for Westwood games

2D and 3D game engine

Game launcher

Launcher for the space MMO game EVE Online

Pixel art science-fiction real-time strategy game

Tool to render realistic skies in real time on the screen

Traditional roguelike dungeon crawler with randomised levels, enemies and items

DOS game emulator

Open-source, cross-platform game engine designed to be used by everyone

Flight simulator