, where players had to register their product code to unlock the simulator's core features. Tutorial Requirement : Activation was often the final gate before accessing the Interactive Tutorial

He looked at his hands. They were smooth and slightly translucent, like a 3D model that hadn't fully rendered. He tried to stand up, but his legs wouldn't move. He was locked into the seat. A bell chimed.

If you have a , the process is handled through the Steam client rather than an in-game prompt: Open Steam and log in. Click the "Games" menu at the top. Select "Activate a Product on Steam..." .

If the game refuses to activate even with the correct information, try these community-recommended fixes: City Bus Simulator 2010 New York Serial!