s&box is a modern game engine, built on Valve's Source 2
JavaScript-based game engine designed to empower developers
Descent 3 by Outrage Entertainment
A dead simple 2D game engine for Go
Easily generate cue sheets for CD images with compressed audio tracks.
Open and edit the archive files used in over 5700 games.
Zoomable user interface (ZUI) with file manager, file viewers and more
The ultimate cataloguer
Emulator of the 8-bit computers Sharp MZ-800 / MZ-700 / MZ-1500
JavaScript framework to build game engines, games, emulators and apps
SDL based generic 2D game engine
Convert PSID and RSID files into C64 executables
A c++ public domain audio output class
A Tile-based Game Engine written in C# mimicing retro consoles.
Learn the English alphabet
Amazon Lumberyard is a free AAA game engine
Character animation system for games and simulations.
Low-latency, high quality voice chat for gamers
3D video music media player lyrics subtitles etc...