The surface of Mars is littered with Humanity’s failed attempts to colonize its surface. This time will be different - this time there is no room for human error.
Per Aspera is a planetary simulation game that combines hard science fiction and base building and takes the experience planet-wide. Step into the role of AMI, an Artificial Consciousness with the prime directive of terraforming Mars for human colonization.
FEATURES:
Balance a complex well of resources to build interconnected structures that span the entire planet.
Customize your planet with branching research trees that allow players to tailor their terraforming plan — Develop new technologies, steeped in real-world science, to create a thriving interplanetary civilization.
Uncover the mystery of a threatening presence on Mars and defend your colonies from unknown and combative forces.
Immerse yourself in a rich, compelling narrative or take your time and craft the perfect Martian landscape with Sandbox Mode.
Includes the immersive voice acting talents of Troy Baker, Phil LaMarr, Laila Berzins, Yong Yea, Lynsey Murrell, and Nneka Okoye.
Terraform Together with Friends (up to 4 players). Sandbox Mode Only.
Using scientific theories proposed by real space agencies and geographical data directly from NASA, Per Aspera presents life-like conditions and challenges steeped in theoretical science.
Per Aspera contains a rich narrative that presents players with difficult decisions with planet-wide consequences. See the world through the eyes of an infant AI as it traverses a complicated ocean of self-discovery and shapes the fate of the human race. Navigate your ever-evolving programming to adapt to morally challenging concepts and forge relationships with the human colonists that look to you for their continued survival. The choices you make will impact how your mission ultimately concludes.
Keep your wits about you as this is not the first time humans have tried to tame the Red Planet. Expose long-forgotten relics of Humanity’s failed attempts, learn from their past mistakes, and uncover a looming menace that threatens to see you fail at any cost.
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-08-07
Yet Another Chance to Earn Extra 50 YXP
Summer is already in full swing and YUPLAY has decided to give you yet another chance to earn an additional 50 YXP to help you reach the next rank. On top of the YXP you receive based on the amount of your purchase, you will also earn these additional 50 bonus YXP for limited time only. All you need to do is make a purchase of at least €10 between 07.08.2026 15:00 CET and 10.08.2026 15:00 CET and receive an extra 50 YXP for our Loyalty Program…
The Summer Sale Returns: Bigger Deals for 48 Hours Only
Summer is here and we are already preparing for a super fresh season full of incredible delights and heated moments! Make an order of over 15€ between 31.07.2026 13:00 CET and 02.08.2026 15:00 CET and you will get our special SUMMER DEALS GIFT, which will contain one of the following: discount codes - 10% OFF, 20% OFF, 25% OFF or 50% OFF; discount vouchers - 1€, 2€, 5 or 10€; or a FREE GAME…
Some functionality is not accessible when using the default controller configuration, requiring use of the touchscreen or virtual keyboard, or a community configuration
Entering some text requires manually invoking the on-screen keyboard
In-game interface text is legible on Steam Deck
This game's default graphics configuration performs well on Steam Deck