Flexible level editor
Make OpenStreetMap vector tiles without the stack
General purpose tile map editor
Import OpenStreetMap data into a PostgreSQL/PostGIS database
Command & Conquer: Remastered Collection
A free & open-source 2D sprite editor, made with the Godot Engine
Eureka is a DOOM map editor
Open Source Routing Machine - C++ backend
Google Maps SDK for iOS Utility Library
The source code to VVVVVV
Open source RGB lighting control
Interactive, thoroughly customizable maps in the browser
An OpenGL RTS game engine written in C
GPS track editor for editing tracks and planning (multiple) day tours
Turn-based empire building strategy game inspired by Civilization II.
GWC is a tile server and caching proxy written in Java
VERSION 3.7.1 released 4/25/2026
Windows visual diff and merge for files and directories
Custom Map File Generator for C-evo
SDL based generic 2D game engine
A 2D multiplayer space shooter game
Cross-Platform Level Editor for Doom3 and The Dark Mod
An Audio/MIDI multi-track sequencer