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Solar 2
Dynamic abstract sandbox universe. Changes and evolves as you do.
In short, Steam reviewers most often praise “Cosmic growth sandbox” (31 of 93 reviews) and “Optional achievement challenges” (8); the most common complaint is “Tedious, unfair challenges” (7). What reviewers agree on ↓
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-10-22 · quoted reviews as of 2026-05-13.
What reviewers agree on
31 of the 93 reviews raise this.
8 of the 93 reviews raise this.
“it takes some time to learn how each class grows, but after you do that it is so fun having battles and other things. also they don't make it too hard. when you are an asteroid there are not any black holes, and things…”
7 of the 93 reviews raise this.
6 of the 93 reviews raise this.
“---{ ? / 10 }--- ☐ 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 6 ☑ 7 ☐ 8 ☐ 9 ☐ 10 ---{ Graphics }--- ☐ You forget what reality is ☐ Beautiful ☑ Good ☐ Decent ☐ Bad ☐ Don‘t look too long at it ☐ MS-DOS ---{ Gameplay }--- ☐ Very good ☑ Good ☐…”
4 of the 93 reviews raise this.
“---{ ? / 10 }--- ☐ 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 6 ☑ 7 ☐ 8 ☐ 9 ☐ 10 ---{ Graphics }--- ☐ You forget what reality is ☐ Beautiful ☑ Good ☐ Decent ☐ Bad ☐ Don‘t look too long at it ☐ MS-DOS ---{ Gameplay }--- ☐ Very good ☑ Good ☐…”
7 of the 93 reviews raise this · 5 of them still recommend the game.
“A neat little game about a small asteroid growing into a planet then into a star and bigger stars to a black hole. There are challenges to work on and I did 42% of them but I wasn’t liking the harder ones so I stopped.…”
6 of the 93 reviews raise this · 6 of them still recommend the game.
6 of the 93 reviews raise this · 1 of them still recommend the game.
“To be honest, I don't understand the praise this game gets. It is extremely simple mechanically, and the gameplay loop is non-interesting, in my opinion. I got bored playing this, but I tried to enjoy it.”
“I thought this was more of an astronomy game, but then your planets has life and military. No thanks.”
3 of the 93 reviews raise this · 3 of them still recommend the game.
“A neat little game about a small asteroid growing into a planet then into a star and bigger stars to a black hole. There are challenges to work on and I did 42% of them but I wasn’t liking the harder ones so I stopped.…”
Counted across 93 English reviews, sampled to match this game's 90.9% positive rating · as of 2026-05-13
“I don’t usually write reviews, but Solar 2 deserves one. This game is honestly incredible in a way that’s hard to explain until you actually play it. You start as a tiny drifting rock… and somehow end up becoming an entire solar system, a star, and eventually something even…”
— a player, Steam review · 5 hrs played“I picked up Solar 2 expecting a simple diversion and ended up losing hours building absurd multi-star ring systems I had no intention of leaving. The progression from a tiny asteroid through planet, star, and eventually black hole gives each phase its own distinct feel — one…”
— a player, Steam review · 29 hrs played“It's good. Educational and hard to master. But based on science.”
— a player, Steam review · 3 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 2026-10-25.
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 (2026-10-23). 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.
Solar 2 v1.25
-Fixed a bug on the new missions screen where yellow missions couldn't be green completed
Major Quality of Life Update v1.23
Major quality of life update, mostly backend stuff but some new game things. v1.23 Platforms: - Windows 64 bit version has been added (32 bit version still available for 32 bit systems) - Mac 64 bit v
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From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-13.
| Genres | Action, Adventure, Casual, Indie, Simulation |
| Player tags | Space · Indie · Casual · Sandbox · Relaxing · Simulation · Singleplayer · 2D · Open World · Physics · Top-Down · Comedy (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Partial Controller Support · Steam Cloud · Stats · Family Sharing |
| Languages | English |
| Achievements | 25 |
| Official site | http://murudai.com/solar/ |
Minimum system requirements (PC)
OS: Windows XP SP2 or greater Processor: Dual Core 1.8 GHz Memory: 1 GB RAM Hard Disk Space: 280 MB OpenGL 2.0 compatible graphics card, Pixelshader 2.0 Additional: Microsoft Xbox 360 Controller support