Alternatives to OpenRCT2

Open-source transport simulation game

Real-time strategy game engine for Westwood games

2D and 3D game engine

Playstation 2 Emulator

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

Kart racing game

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

Voxel game-creation platform

Client for Old School RuneScape

Open-source engine for Heroes of Might & Magic III

Game launcher

C# scripting capable version of Godot game engine