Moon Mystery
Uncover Moon's secrets in an epic FPS adventure across the stars.
About the game
Explore a haunted Moon in this interstellar FPS adventure with puzzles, battles, and secrets across the stars.
Official store
Trusted. Transparent. Reliable.
Secure payment
Only verified payments methods
Frequently Asked Questions
How do I activate a Steam key?
To activate a CD key on Steam, follow these steps:
- 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.
- Click the Games menu option at the top of the Steam client.
- Select Activate a Product on Steam.
- Follow the onscreen instructions to complete the process.
- 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?
Interface: English, French, German, Spanish, Japanese, Korean, Simplify Chinese, Portuguese and Turkish
Full Audio: English
Subtitles: English, French, German, Spanish, Japanese, Korean, Simplify Chinese, Portuguese and Turkish
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.
Log in to make purchases
Cart
Total
Additional taxes and fees may apply
Send game activation key to:You will receive a key that you need to activate in order to start playing.
Cart
Your cart is empty. Go to the store and find something awesome to buy.