Suggestions for resources to find free/libre #games for #linux ?

Usually I just rely on the package manager to check out/try out games, but one of the main things it lacks is screenshots.

Here are a few websites I found as resources:

https://www.gamingonlinux.com/free-games/

http://savannah.gnu.org/

https://libregamewiki.org/GPL_games

It would also be nice if there was a reliable place where libre games have "ratings" so I can decide wether a game is even worth downloading.