First-person exploration game The Stanley Parable has taken Steam's weekly charts by storm, grabbing the number one spot in just two and a half days of availability.
The indie game launched Thursday – late in the weekly sales period that measures Valve's top ten list – and quickly climbed to the top of the best sellers list.
The Batman: Arkham series also performed well thanks to a combination sale and pre-order promotion, with Arkham City taking fourth and Arkham Origins finishing ninth.
Indie political simulator Democracy 3 also saw a strong launch that earned it the seventh spot.