Flexible level editor
Flexible tool to build planet-scale vector tilesets
Make OpenStreetMap vector tiles without the stack
Map generator for games
IsoCity: City building simulation game
Create custom vector tiles from OpenStreetMap
Import OpenStreetMap data into a PostgreSQL/PostGIS database
General purpose tile map editor
Google Maps SDK for iOS Utility Library
A Python package for segmenting geospatial data with the SAM
A Python package for interactive mapping and geospatial analysis
A free & open-source 2D sprite editor, made with the Godot Engine
Open Source Routing Machine - C++ backend
A Tile(map) library
Interactive, thoroughly customizable maps in the browser
GWC is a tile server and caching proxy written in Java
GPS track editor for editing tracks and planning (multiple) day tours
Old-school 2D game engine
Turn-based empire building strategy game inspired by Civilization II.
SDL based generic 2D game engine
Open-source JavaScript library for mobile-friendly interactive maps
A very fast geospatial point clustering library for browsers and Node
Minimalistic wide-open GPS-locator/tracker
a free hack & slash action 2D/3D rogue / ultima / dungeon like game
2D Game Engine