The Humble Weekly sale starts a new week today, and with it comes a celebration of open source gaming. You can pay what you want for Magical Diary, NEO Scavenger (an early access game), Offspring Fling!, and Planet Stronghold. Paying $6 or more gets you Anodyne, Defender’s Quest: Valley of the Forgotten, the critically-acclaimed Evoland, and Incredipede. For the pay what you want tier, only Offspring Fling and Planet Stronghold have OSTs, but everything in the $6 or more tier includes them. Evoland alone sells for $10, so this is quite a savings for just that. As with many of these bundles, the inclusion of one must-buy game in it means that you could be adding a ton of games to your library that you never wind up playing, but if you’re curious about Evoland, this is the best overall way to get it since the soundtrack is included and you get a ton of other gaming content as well. Everything but Planet Stronghold unlocks on Steam, and is available as a DRM-free download for either Windows or Mac, while Incredipede also includes an Android version.