Humble’s newest bundle includes up to seven space-themed games, including Planetary Annihilation: TITANS and Galactic Civilizations II and III, but the star of the show is undoubtedly Offworld Trading Company. You’ll need to donate at least $15 to get a copy, but considering the six other games you’ll also receive, and the fact that it’s selling for $40 on Steam right now, I’d say that’s a fair trade.