#SuperTuxKart is a free open game similar to Mario Kart, featuring open source mascots as the main characters.
The latest version (1.0) was released a couple of days ago, and introduces online multiplayer 🌐
There's also a story mode, single player, local multiplayer, various game types and lots of mods.
It's available for Linux, Mac, Windows and Android:
@ChrisWere did a detailed video about it a while ago, which includes gameplay footage:
https://share.tube/videos/watch/fd83f148-ebf2-4573-9973-53f594cd606d