Costume Quest (Under 10 in 30: Episode 10)
Costume Quest is yet another game we played that was first a XBLA/PS3 downloadable title. We picked it up on the steam Halloween sale 50% off. Yes it's being posted a week after Halloween, you can blame me for that. Life took over and I didn't have the time to get this up on time. I still recommend watching the episode as the game is great fun. It is unfortunately no longer under $10 since the sale is over, but I'm very comfortable recommending this at the full $15 price tag. It's short term fun, but the dialogue alone is worth the price of entry.
Buy it on Steam for $14.99.