Critically acclaimed Batman: Arkham Asylum returns with a remastered Game of the Year Edition, featuring 4 extra Challenge Maps. The additional Challenge Maps are Crime Alley; Scarecrow Nightmare; Totally Insane and Nocturnal Hunter (both from the Insane Night Map Pack).
1. Launch Steam and log into your account or create a new one (download Steam).
2. Choose "Games" from the menu and "Activate a Product on Steam".
3. Follow the onscreen instructions to complete the activation process.
4. You can find your new game in the "Library" tab.
