Once Upon A KATAMARI

1. 01

   Buy & receive your code

   Complete checkout — your code lands in your inbox in ~30 seconds, and is always available under Orders in your Gameplug account.

2. 02

   Open Steam

   In the desktop client: top-left menu "Games" → "Activate a Product on Steam…" (or use the web link below).

3. 03

   Enter your key

   Paste the key (format XXXXX-XXXXX-XXXXX) and accept the Steam Subscriber Agreement.

4. 04

   Install & play

   The game joins your library permanently — install it on any machine you sign in to.

Code not working? Contact support — confirmed-invalid codes are replaced or refunded.