So Wolfire Games decided to make this neat “Humble Indie Bundle” that included four games (World of Goo, Aquaria, Gish and Lugaru HD), and had a “pay what you want” model, and let you donate to either the EFF – Electronic Frontier Foundation (Which we encourage you to!) or Child’s Play (Or none, if you’d rather have the money go to the devs.)

As if that wasn’t amazing enough, the bundle is completely DRM Free, and the games are fully playable under Linux, Mac or that other OS. And if four games seemed like to little, they later added 2 more games: Penumbra: Overture and Samorost 2.

Then, Steve Swink tweeted… “If we raise over $1,000,000 USD then Gish, Penumbra Overture and Lugaru will release their source code!”. And so, after raising over $1,000,000 USD, Lugaru HD’s source is open, with the others “opening soon”.

While the game’s engines are fully open, resources and other things aren’t, and each will carry its own license, too. For instance, in Lugaru’s case. You’re free to use the game’s art, as long as you don’t profit from said art.

Remember, you can still donate towards the “Humble Indie Bundle” (And we encourage you to! All the cool kids are doing it!) and get your pack of 6 games, 4 of which will be Open Sourced, and will work on 3 major platforms. What are you waiting for? Get the bundle!