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Ammo and Oxygen

Survive, explore, and fight aliens solo or co-op in this adventure.

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About the game

Explore, fight alien creatures, and survive harsh environments solo or co-op. Stock up, strategize, and unravel the mysteries

Official store

Trusted. Transparent. Reliable.

Secure payment

Only verified payments methods

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FAQ

How do I activate a Steam key?

To activate a CD key on Steam, follow these steps:

  1. Launch the Steam client on your computer and log into your Steam account. If you don't have Steam installed, you can download and install it from the official Steam website.
  2. Click the Games menu option at the top of the Steam client. 
  3. Select Activate a Product on Steam. 
  4. Follow the onscreen instructions to complete the process. 
  5. Once the game appears in your library, download and install it by clicking on it and selecting the Install button.


If you encounter any issues during activation, please see this Retail CD Keys article for more info. If problems persist, you may contact Xsolla Customer Support at Xsolla Help Center.

What are the supported languages?

  1. Interface: English, Chinese, French, Spanish, Russian
  2. Full Audio: N/A
  3. Subtitles: English, Chinese, French, Spanish, Russian

I have an issue with my purchase. How can I get help?

If you have any issues with your purchase, please email us at support@xsolla.com or simply click on the customer support button located on the bottom left of the homepage to start a live chat. In rare cases, it may take up to a few minutes for emails from Xsolla Mall to deliver.