: Newegg is currently offering a Steam Online Game Code for $19.99 $3.60 (82% off).

: The game is available at its base price of $19.99 on Steam , Green Man Gaming , and Humble Bundle . Minimum System Requirements (PC)

: Free-to-download versions with optional in-app purchases are available on the Amazon Appstore and Google Play . Best Current Deals for Full PC Version

Retail prices vary significantly between standard stores and discount key retailers: