3D game engine/framework in C, with Luajit and Python bindings now
lua dev plugin for unreal engine 4 or 5
Open source simulation game based on Transport Tycoon Deluxe
An updated version of the classic "Basic Computer Games" book
Gideros Release version
High performance UI layout library in C
A lightweight game server framework implemented with Actor Model
Botcraft is a cross-platform C++ library to create bots
A dead simple 2D game library for Go
A planetarium software that shows a 3D simulation of the night sky
A strategy game with a high fantasy theme
FlightGear Flight Simulator: free open-source multiplatform flight sim
A free transportation simulator game
C64/Amiga emulator with shader and runAhead
3D Engine c++
A very efficient tutor.
Chess Database and Toolkit program
For exploring cellular automata like Conway's Game of Life.