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Solar 2

Solar 2

Dynamic abstract sandbox universe. Changes and evolves as you do.

Released Jun 17, 2011 Developer Murudai Platforms Windows · Mac · Linux SpaceIndieCasualSandboxRelaxing
View on Steam ↗ $9.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

91.1%positive2,138 reviews
Recommended · 1 found this helpful

“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
Recommended · 1 found this helpful

“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
Recommended · 2 found this helpful

“It's good. Educational and hard to master. But based on science.”

— a player, Steam review · 3 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-11 11:50 UTC · history via SteamCharts.

8playing at last check
1024-hour peak
2,687all-time peak
0 100 200 2013 2015 2017 2019 2021 2023 2025 145 avg · Jan 2013

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

25achievements
5.3%median completion
1.3%rarest: Hobo Star
73.3% of players 34.3% of players 24.7% of players 20.2% of players 16.4% of players 14.0% of players 10.5% of players 9.8% of players 8.2% of players 7.1% of players 6.7% of players 6.6% of players 5.3% of players 4.2% of players 3.8% of players 3.3% of players 2.8% of players 2.7% of players 2.6% of players 2.3% of players 1.9% of players 1.7% of players 1.7% of players 1.5% of players 1.3% of players 73.3% 0% most earned rarest
Almost everyone has
73.3%Big Crunch — Grow so large you absorb the whole universe.
34.3%Asteroid Nursery — Have 15 asteroid moons around your planet.
24.7%Supremacy — As a star have an orbiting life planet with 100 kills.
Rarest badges of honor
1.3%Hobo Star — Start the 3rd part of the "Duel" mission as a single star, no planets, no god options and beat it in under 3 minutes.
1.5%Master Thief — Steal 10 planets on the "Planet Stealer" challenge mission.
1.7%Dark Champion — Beat the final boss as a dark matter star. No god options.

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.

$9.99current · sampled 2026-07-26 08:39 UTC
$9.99lowest since tracking began2026-07-11
US9.99 USD
EU8.99 EUR
UK6.99 GBP
Australia14.50 AUD
Canada10.99 CAD
Japan980 JPY
Brazil16.99 BRL
China36.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$3.3 China Japan Canada UK US Australia EU≈$10

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

$0 $10 $20 07-11 07-13 07-16 07-19 07-22 07-26

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Dec 11, 2023
Solar 2 v1.26

Updated frameworks. Fixed crash on Linux.

Aug 03, 2022
Solar 2 v1.25

-Fixed a bug on the new missions screen where yellow missions couldn't be green completed

Sep 01, 2021
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

Games like Solar 2

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresAction, Adventure, Casual, Indie, Simulation
Player tagsSpace · Indie · Casual · Sandbox · Relaxing · Simulation · Singleplayer · 2D · Open World · Physics · Top-Down · Comedy (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Partial Controller Support · Steam Cloud · Stats · Family Sharing
LanguagesEnglish
Achievements25
Estimated owners100,000 – 200,000 (SteamSpy)
Official sitehttp://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