"If, like me, you have a bit of a sweet tooth, Costume Quest is going to be deadly for your waistline. An hour in and I was craving a pack of wine gums. By the time I finished the game, I'd demolished a whole bag of Haribo." - Eurogamer
"Costume Quest is the ideal downloadable game. It’s simple, fun, hilarious, and full of charm. Exploring Wren’s world was never boring, and the creativity on display by the folks at Double Fine can be seen in full force..." - G4TV
"It's obvious that real care and attention went into the game, and it shows every step of the way. Moreover, this title particularly benefits from stellar art direction that really takes advantage of the Halloween theme." - GamePro
"Costume Quest is, plain and simple, a fantastic embodiment of childhood imagination mixed with a healthy heap of cockiness. It's like that classic schoolyard rhyme: "Trick or treat. Smell my feet. Give me something good to eat." Elegant, succinct, and full of bravado." - 1UP