Steam

The Callisto Protocol (Steam)

One-time payment

€7.51excl. VAT

Available to order

Delivered after a quick manual verification — typically the same day.

14-day refund on unrevealed keys

Genuine licence, EU invoice included

Sold by Kiaveo

Independent EU software reseller

✓ Official invoice

About this licence

The Callisto Protocol is a survival horror game set in the year 2320 on Jupiter's moon Callisto. Players take on the role of Jacob Lee, a prisoner in the Black Iron Prison who must fight to survive against horrifying creatures. The game combines intense combat with a gripping narrative and atmospheric visuals to deliver a terrifying experience. The Callisto Protocol is available as a digital key for Steam, offering lifetime access to the game. This global edition ensures compatibility with Steam accounts worldwide. The game features a unique blend of melee and ranged combat, requiring strategic thinking to survive. Players will uncover the dark secrets of the Black Iron Prison as they progress through the story. The atmospheric visuals and sound design create an immersive and terrifying experience. The Callisto Protocol offers a deep and engaging storyline with multiple endings based on player choices. The game's horror elements are designed to keep players on edge throughout the experience. Steam integration ensures achievements, cloud saves, and other platform features are fully supported. Genuine software licences are acquired for lawful resale, ensuring buyers receive a legitimate product. Each purchase includes a valid VAT invoice and activation support for a smooth experience. The listed licence term controls expiry; automatic renewal or extension is not included unless the product facts state it. The global edition of The Callisto Protocol (Steam) is designed for worldwide activation and play.

What's included

Survival horror game set on Jupiter's moon Callisto
Intense combat and gripping narrative
Atmospheric visuals for a terrifying experience
Digital key for Steam with lifetime access
Global edition compatible with Steam accounts worldwide

Frequently asked questions

How do I activate The Callisto Protocol (Steam)?

The digital key is delivered according to the timing shown before payment via email after purchase. Redeem the key in the Steam client to activate the game. The global edition ensures compatibility with any Steam account. Activation support is included with your purchase.

What does the global edition mean for activation?

The global edition can be activated on any Steam account worldwide. There are no regional restrictions for this key. The game will be available in your Steam library immediately after activation.

How is the digital key delivered?

The key is delivered according to the timing shown before payment via email after your purchase is completed. Check your inbox and spam folder if you don't see the email immediately. The key can be redeemed in Steam right away.

What support is included with my purchase?

Each purchase includes activation support to help with any issues during redemption. A valid VAT invoice is provided for your records. The licence term is lifetime access with no automatic renewal.

Can I play The Callisto Protocol on any Steam account?

Yes, the global edition is compatible with any Steam account worldwide. The game will appear in your library after activation. Steam features like cloud saves and achievements are fully supported.

Product details

Brand	Steam
Category	All Games
Platform	Steam
License	Standard
Activation region	Global
Delivery	Digital key — secure order-page delivery
Invoice	EU invoice included

System requirements

Product-specific requirements have not yet been verified. Check the publisher’s compatibility information before purchase or ask support to confirm your setup.