A completely free, open-source, 2D game engine
Go bindings for raylib, a simple and easy-to-use library
SDL based generic 2D game engine
Orx: Portable Game Engine
Cross-platform 2D and 3D game engine
creator : Nikola Lukic about : Visual JS 2d canvas multiplatform game
A basic 3D environment with a first-person POV
3D game engine for C and C++
A complete 2D Game Engine with built in drag and drop editor