Playnite
Playnite gathers your PC games from Steam, Epic, GOG and others into one library with one search. It launches and tracks them, but does not sell games.
How hard it is to start using it. Easy: install it like a normal app, or use it in your browser. Advanced: you run it on your own server, use the command line, or it is a tool for developers.
Features
Listed in
Windows only; one library for games you own; sells none
How to help
AI contributionsNot stated
The project has not said how it feels about AI-written contributions. Maintainers can set this by claiming the listing.