I'm usually a fan of open source games but rarely do they manage to be actually great. People like giving recommendations like Super Tux Kart that haven't aged well and don't play well. What are some open source games that are legitimately good that I've missed?
Open Hexagon is pretty good if you enjoy music reaction/arcade games. It’s an open source successor of Super Hexagon with several community made level packs. The only flaw is the steep learning curve of the gameplay.