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Per Aspera
Make Mars your own! Take control of the world’s most sophisticated AI (AMI) and terraform the surface of the Red Planet for a city-building experience on a planetary scale. Transform this barren world into a lush paradise and explore the surface for any ancient secrets that may be waiting.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-12.
What reviewers agree on
45 of the 66 reviews raise this.
“the game has GREAT POTENTIAL but the interfac is AWAFULL when U have thousands of buildings it is impossible to find factories and chect their status”
“This game is really unique and early game is pretty good...but man, does it have some GLARING issues. at $30? ehhh probably not, but when on sale? absolutely. I'll keep it short, the game suffers from a sub-par UI. in…”
“11.1 hours, 0/55 achievements, because I've been min/maxxing what for other players is the first 10 minutes for 3 hours, then fell asleep. 10/10 at least the beginning, it's all I've seen.”
10 of the 66 reviews raise this.
“i picked this up after fully completing Terraforming Mars and wanting more mars sci-fi terraforming and Per Aspera fulfilled that while also serving some excellent storytelling with AMI the AI. Good game play, excellent…”
“Not too hard, more on the relaxing side... Per Aspera is a builder. That is by the way always the answer. Build more! Build faster, build everything, and a lot of it (except windparks, they suck). The Story is quite…”
6 of the 66 reviews raise this.
“Great game, definitely triggers my hyperfocus! Very enjoyable as a multiplayer co-op, surprisingly rich in lore for this genre as a single player game. The Blue Mars DLC is an absolute must, especially for the…”
“I'm still in the early game but I think I've had enough time to get a feel for this one. Here's the short version--it's cozy and hopeful and if you're a space nerd then you'll love it. At least long enough to get your…”
“I loved the game but the game has issues. I managed to get 11-12 hours out of my first play though. The game interface needs an overhull and and some features such as, quick select, automatic deconstruction and a more…”
6 of the 66 reviews raise this.
“Really interesting. Great visuals. Story starts off enjoyable (mostly just due to Troy Baker). Love the theory behind terraforming mars. The changing landscape as mars becomes slowly flooded, ice mining turns into…”
“I enjoy this game quite a lot. There's a mode where a rival faction sometimes attacks you, but I prefer peaceful sandbox mode where you build and manage facilities to transform the planet. It's extremely satisfying to…”
“Not too hard, more on the relaxing side... Per Aspera is a builder. That is by the way always the answer. Build more! Build faster, build everything, and a lot of it (except windparks, they suck). The Story is quite…”
5 of the 66 reviews raise this.
“i picked this up after fully completing Terraforming Mars and wanting more mars sci-fi terraforming and Per Aspera fulfilled that while also serving some excellent storytelling with AMI the AI. Good game play, excellent…”
“Not too hard, more on the relaxing side... Per Aspera is a builder. That is by the way always the answer. Build more! Build faster, build everything, and a lot of it (except windparks, they suck). The Story is quite…”
“A really nice city/planet builder with terraforming, amazing voice acting and a compelling story but horrible QOL features like controlling the armies, placing down buildings, reducing oxygen(a small mistake in mid-game…”
20 of the 66 reviews raise this · 11 of them still recommend the game.
“Per Aspera, the game where solar panels (starter power gen) have no day/night cycle and wind farms (first researched power gen) have day/night cycles.. Imagine thinking you can research better power generation? Couldn't…”
“This game is really unique and early game is pretty good...but man, does it have some GLARING issues. at $30? ehhh probably not, but when on sale? absolutely. I'll keep it short, the game suffers from a sub-par UI. in…”
12 of the 66 reviews raise this · 8 of them still recommend the game.
“the game has GREAT POTENTIAL but the interfac is AWAFULL when U have thousands of buildings it is impossible to find factories and chect their status”
“This game is really unique and early game is pretty good...but man, does it have some GLARING issues. at $30? ehhh probably not, but when on sale? absolutely. I'll keep it short, the game suffers from a sub-par UI. in…”
“Love seeing the planet change green! A chill game with story choices. Wish the building limit were higher and there was an option to not zoom in on new launches. Also, the initial stages of increasing oxygen took…”
9 of the 66 reviews raise this · 1 of them still recommend the game.
“Really interesting. Great visuals. Story starts off enjoyable (mostly just due to Troy Baker). Love the theory behind terraforming mars. The changing landscape as mars becomes slowly flooded, ice mining turns into…”
“Per Aspera, the game where solar panels (starter power gen) have no day/night cycle and wind farms (first researched power gen) have day/night cycles.. Imagine thinking you can research better power generation? Couldn't…”
7 of the 66 reviews raise this · 3 of them still recommend the game.
“It's alright. Ran into quite a few bugs, and ultimately wish that there was more to it. Glad I got it on a really steep sale.”
“Great game, definitely triggers my hyperfocus! Very enjoyable as a multiplayer co-op, surprisingly rich in lore for this genre as a single player game. The Blue Mars DLC is an absolute must, especially for the…”
“Buggy for me. Buildings keep halting production and output even when at full input, has maintenance, and power. Constant issues with this less than 2 hours in, which is really a shame because I was really liking the…”
4 of the 66 reviews raise this · 1 of them still recommend the game.
“Kinda mid but when I encountered the Musk related content I was pretty turned off of the game. Not really into celebrating NAZIs.”
“Really interesting. Great visuals. Story starts off enjoyable (mostly just due to Troy Baker). Love the theory behind terraforming mars. The changing landscape as mars becomes slowly flooded, ice mining turns into…”
“I've finally finished this game, so expect spoilers. Story ends inconclusively with elements like the Tekkies being completely gone after the Martian republic is formed. In addition military was completely…”
Counted across 66 English reviews, sampled to match this game's 75.9% positive rating · as of 2026-05-12
“I’ve put over 125 hours into Per Aspera, and it’s one of those rare games I keep coming back to. What really stands out is how unique it feels compared to other city-builders. Managing the transformation of Mars while balancing resources, expansion, and long-term planning keeps…”
— a player, Steam review · 126 hrs played“I'm still trying to decide what I think. I loved Surviving Mars, and have like 150 hours or so in that. I really want to like this game more, and I think I do like it? It's definitely worth the price when it's on sale. I just think there are things they could have done to make…”
— a player, Steam review · 8 hrs played“The game is simplistic, the pace is painfully slow, the graphics are basic, and the autosave doesn't work. I've lost a few hours of play when it crashed, and the thought of going back and slogging through the part I've already done... I'd rather just uninstall it. It's a no from…”
— a player, Steam review · 12 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-05.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-04). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Datamodel for modding
Just a small update, including the complete datamodel for modding - includes Blue Mars (won't work without the DLC). Thanks for all the support, Ad Astra! - the Per Aspera team
Hyperloop Bugfixing and Resource Stock QOL update
Hello Terraformers! Today, we bring this bugfixing & QoL update, which should improve the overall experience of Per Aspera. Drones will behave better when using hyperloops, and you will now be able to
Raw Fury Publisher Sale
It’s Raw Fury Publisher Sale time which means there are some fantastic deals to be had including 75% off Per Aspera until 27 April 2026! Per Aspera is a planetary simulation game combining hard scienc
Per Aspera x Solar Expanse Bundle
If you’re anything like us all you have done for the last 10 days is think about space. 🚀🧑🚀👨🚀 Good news, you don’t have to stop now! Introducing the Per Aspera x Solar Expanse Bundle, bringing toget
Patch notes - Endgame fix
Hello Martians! We've updated the version with the endgame fix. Ad Astra! - the Per Aspera team
Games like Per Aspera
From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.
Surviving Mars
77.3% · 15,991 reviews
shares Mars, Colony Sim, Moddable, City Builder
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87.6% · 540 reviews
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InfraSpace
79.8% · 1,198 reviews
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The Crust
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95.0% · 20,371 reviews
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Clanfolk
93.5% · 2,173 reviews
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Blacksmith Master
84.8% · 1,248 reviews
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The Colonists
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-12.
| Genres | Indie, Simulation, Strategy |
| Player tags | Online Co-Op · Real-Time · Management · Strategy · Automation · Base-Building · City Builder · Moddable · Colony Sim · Resource Management · Building · Robots (SteamSpy community voting) |
| Features | Single-player · Multi-player · Co-op · Online Co-op · Steam Achievements · Steam Trading Cards · Steam Workshop · Steam Cloud |
| Languages | English * , French, German, Spanish - Spain, Japanese, Portuguese - Brazil, Russian, Simplified Chinese * |
| Achievements | 55 |
| Official site | http://per-aspera.vg |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 Processor: Intel Core i5-7400 / AMD Ryzen 3 1200 Memory: 8 GB RAM Graphics: NVIDIA GeForce GTX 1050ti / AMD Radeon RX 570 DirectX: Version 11 Storage: 10 GB available space Sound Card: DirectX Compatible Sound Card