Open Game Launcher

OGL is a launcher for open-source games. Pick a game, press install, and it downloads the right build for your system, keeps it up to date and starts it. It runs on macOS, Windows and Linux, though so far only the Mac version is signed and properly tested.

The catalogue is a folder of JSON files in the repository. OGL reads it on launch, so a new game shows up without a new version of the launcher, and each game's versions come straight from that game's own GitHub releases.

Some games get a mod browser on their page, like NewGRFs for OpenTTD and plugins for OpenRCT2. It is open source under the MIT licence.