It’s a good day if you’re into puzzle games. A little while ago, I reported that Chants of Sannaar, which holds a spot in my pantheon of “favorite puzzle games ever,” was discounted as part of a Steam sale. Now, another one from that pantheon, Return of the Obra Dinn, has just gone on sale. It’s as if someone at Valve has both a love for puzzle games and impeccable taste.