Erin Robinson's excellent Puzzle Bots was chosen as one of the PAX 10 winners for this weekend's Seattle convention, and as a result, Wadjet Eye games has it on sale all weekend long. By entering the code "PUZZLEPAX" at checkout, you can play the cheerful little strategy puzzle title for $4.99 instead of the usual $10.
There's a free demo available if you want to try before you buy and the game will also be playable on the PAX show floor -- so if you have a friend in Seattle, ask them what they think. An excellent deal on an excellent indie title, even for those of us who aren't partying with Tycho and Gabe this weekend.