Doom 3 Collection
Region — Works worldwide — no region restriction.
Can be activated in United States
WindowsBuy Doom 3 Collection key
The DOOM Slayers Collection takes players through more than two decades of demon slaying Wield an arsenal of powerful weapons as you battle demon hordes on Mars, on Earth, and across Hell in four critically acclaimed games: DOOM, DOOM II, DOOM 3, and DOOM (2016)
How to activate Doom 3 Collection on Steam
- 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.
- 02
Open Steam
In the desktop client: top-left menu "Games" → "Activate a Product on Steam…" (or use the web link below).
- 03
Enter your key
Paste the key (format XXXXX-XXXXX-XXXXX) and accept the Steam Subscriber Agreement.
- 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.
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