I was looking for some good games for Linux a few days ago and I found an incredible one: Open Sonic. It’s a free, open-source game featuring Sonic The Hedgehog (don’t tell Sega about this) and it’s available for Linux, Mac and Windows. And it’s very, very fun, just like the old Sonic games for Master System and Genesis I used to play fifteen years ago. I’m getting old.
The game is still under development (only two levels until now), but it’s a good game anyway. It has a cooperative play mode which lets you control three characters simultaneously (Sonic, Tails and Knuckles), and at some parts you need to use two of them (Tails must open a door so Sonic can pass, for example).
There’s a demo video available. It’s a little bit outdated but it can show what the game already has to offer: