Per Aspera
Make Mars your own!
76%of 5,792 Steam reviews— Mostly Positive76% of 5,792 Steam reviews are positive — Mostly Positive
Details
- Developer
- Tlön Industries
- Publisher
- Raw Fury
- Released
- Dec 3, 2020
- Price
- $29.99
- Platform
- PC
Multiplayer
- Online co-op
- Yes
- Split screen co-op
- Not listed
- LAN co-op
- Not listed
- Crossplay
- Not listed
- Remote Play Together
- Not listed
About this game
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.
End of the developer's description of Per Aspera.
MARS TERRAFORMING GAME! - PER ASPERA Gameplay First Look! - 01 - Let's Play Per Aspera
Charlie Pryor

Per Aspera - Martian Colonization - Ep 1
quill18

Per Aspera - Life & Death on Mars
Many A True Nerd

Per Aspera - Building a Massive Spacebase on Mars!
Splattercatgaming

7 Awesome Tips for Per Aspera (that I wish I knew before I started!)
Kolrolf

Per Aspera [Multiplayer BETA] - Part 1 - Laying the foundations
Thracian8519
Recent Updates & Announcements
Announcements come from each game's Steam news feed. ©2026 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. slopranks is not affiliated with or endorsed by Valve. Steam News
Similar games
Ranked by shared tags, then by score.
- 26
Territory: Farming and Warfare
From a small village of a dozen people to a small kingdom…
- 4
TFC2: The Fertile Crescent 2 - Collapse of The Bronze Age
Lead your small caravan on a great journey across the…
- 38
Kingdoms Reborn
A city builder with simulated citizens, set in a…
- 42
Desynced
Desynced is a sci-fi strategy game with fully customizable…
- 17
Keep Keepers
Tower Defense meets Base Management.