KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Cross-Platform C++ 2D/3D game engine
High performance UI layout library in C
An OpenGL RTS game engine written in C
The Tiny JavaScript Game Engine That Can!
Cross-platform game engine in Rust
PyCAPGE - Python Classic Adventure Point and Click Game Engine
A development environment focused on modding
Simulation of a computer house competing with other computer houses
Flex roguelike
evolution for vegastrike SpaceSim/Combat/Trade game
Game development toolkit
QRP contests simulator
An 8 bit emulator created on the scratch, including an assembler.