Released Sep 4, 2026 $6.99 Positive Not counted on Steam profiles yet

Galactic Simulator 3

By PcZ Games

Simulation Idler Space Sim Space Strategy Procedural Generation Sandbox Realistic CasualIndieIncrementalExploration

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Reviews 21 Positive

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Galactic Simulator 3 is a game tagged Simulation, Idler and Space Sim by PcZ Games, released Sep 4, 2026. It has 21 Steam reviews (Positive). The Steam games most like it include Galactic Simulator, Galactic Simulator2: Stargate and Wayward Cosmos.

Galactic Simulator 3 is a space exploration and evolution sim inspired by the Fermi Paradox and Great Filter theory. Scan uncharted star systems, gather resources and samples, establish outposts and stargates, and witness the rise and fall of civilizations across an ever-evolving galaxy.

From the Steam page

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<a href="https://launchrivals.com/games/4827540-galactic-simulator-3"><img src="https://launchrivals.com/games/4827540/badge.png" alt="Galactic Simulator 3 launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/4827540-galactic-simulator-3"><img src="https://launchrivals.com/games/4827540/badge.png?theme=light" alt="Galactic Simulator 3 launch date" width="320" height="84"></a>

Galactic Simulator 84% match · Simulation, Idler, Space Sim
Galactic Simulator2: Stargate 78% match · Simulation, Space Sim, Space
Wayward Cosmos 74% match · Simulation, Space Sim, Space
Children of a Dead Earth 74% match · Simulation, Space Sim, Space
Space Travellers 74% match · Simulation, Space Sim, Space
Space Colonizers Idle Clicker 74% match · Simulation, Idler, Space Sim
Solar System Simulator 72% match · Simulation, Space Sim, Space
Inspiral: Echoes of Gravity 72% match · Simulation, Space Sim, Space
X: Tension 71% match · Simulation, Space Sim, Space
My Little Cosmos 71% match · Simulation, Idler, Space Sim

Steam data

Everything Steam lists for Galactic Simulator 3 · record updated 19 hours ago

Steam store

Overview

App ID4827540

Release dateSep 4, 2026

Last change number39867672

Last record update19 hours ago

App type: Game
Developer: PcZ Games
Publisher: PcZ Games
Steam profile: Not counted yet: Steam is still getting to know this game, so it doesn't add to game counts or achievement totals · checked 1 day ago
Franchise: Galactic Simulator
Technologies: Unity detected

Windows macOS

Single-playerSteam AchievementsSteam LeaderboardsFamily Sharing

Prices

Price · US$6.99

On sale0 of 41regions right now

Lowest seen · US$6.99Oct 23, 2026

Checked23 hours agoin 41 regions

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Every price change is kept from Oct 23, 2026 on. Pick a region below to compare.

Patches

Build	Branch	Updated
24971543	public	Aug 27, 2026

Packages & DLC

ID	Name	Price (US)
4827570	Not on the store yet	—

Depots

ID	Name	Systems	Size	Download	Manifest
228989	— shared from 228980	Windows	—	—	—
4827541	—	Windows	3.86 GB	1.60 GB	5911791208586897635
4827542	—	macOS	4.01 GB	1.64 GB	1318578302124672512

Branch	Build	Updated	Access
public	24971543	Aug 27, 2026	Open

Configuration

Install foldersteamapps/common/GalacticSimulator3

Executable	Arguments	Systems	Description
GalacticSimulator3.exe		Windows
GalacticSimulator3.app		macOS

Space per player—

Filesup to 0

Save locations1

Root	Path	Pattern	Systems
WinAppDataLocalLow	PengchengZhao/GalacticSimulator3	*	All

Achievements

Achievements5029 hidden

Most unlocked87.5%Journey Begins

Rarest1.3%War

Journey Begins Complete Earth’s evolution prologue and begin exploring the galaxy. 87.5%
First Jump Complete your first jump between star systems. 82.7%
First Scan Scan a star system for the first time. 80.6%
First Alien Planet Survey Survey an extrasolar planet at close range for the first time. 75.1%
Organic Molecules A planet reached the organic molecules stage. 69.6%
Self-Replicating Molecules A planet reached the self-replicating molecules stage. 60%
Organic Synthesis Stagnation Hidden achievement 59.3%
Prokaryotic Cells A planet reached the prokaryotic cell stage. 44.1%
Eukaryotic Cells A planet reached the eukaryotic cell stage. 32.4%
First Outpost Built Build your first outpost in an extrasolar system. 24.1%
Multicellular Life A planet reached the multicellular organism stage. 22.7%
Neutron Star Explosion Hidden achievement 20.6%
Autopilot Unlocked Purchase the chip and unlock autopilot. 20%
Micro Black Hole Hidden achievement 19.3%
High Radiation Hidden achievement 16.5%
Intelligent Life Intelligent life emerged on an planet. 15.1%
Genetic Instability Hidden achievement 14.4%
Settlement Stage An alien species established its first settlements. 8.9%

All 50 achievements

Ocean Acidification Hidden achievement 8.9%
First Stargate Built Build a stargate and discover a new sector. 7.5%
Greenhouse Effect Hidden achievement 6.8%
Long Expedition Complete 30 jumps during a single expedition. 5.5%
Agricultural Stage An alien civilization reached the agricultural stage. 4.8%
Asteroid Impact Hidden achievement 4.8%
Biological Immortality Hidden achievement 4.8%
Collect All Life Samples Collect life samples from six different evolutionary stages. 4.8%
Industrial Stage An alien civilization reached the industrial stage. 4.1%
Genetic Bottleneck Hidden achievement 4.1%
Ice Age Hidden achievement 4.1%
Magnetosphere Collapse Hidden achievement 4.1%
Planetary Civilization An alien society developed into a planetary civilization. 3.4%
Interplanetary Civilization An alien civilization expanded across its home star system. 3.4%
Cultural Collapse Hidden achievement 3.4%
Ecosystem Collapse Hidden achievement 3.4%
Gamma-Ray Burst Hidden achievement 3.4%
Solar Superflare Hidden achievement 3.4%
Supervolcanic Eruption Hidden achievement 3.4%
Extreme Tectonic Activity Hidden achievement 3.4%
Tidal Megawaves Hidden achievement 3.4%
Extreme Weather Hidden achievement 3.4%
Global Pandemic Hidden achievement 2.7%
Population Decline Hidden achievement 2.7%
The Fermi Paradox A new interstellar civilization emerged in the galaxy. 2%
Bioengineering Disaster Hidden achievement 2%
Energy Crisis Hidden achievement 2%
Global Desertification Hidden achievement 2%
Artificial Intelligence Crisis Hidden achievement 1.3%
Nuclear Disaster Hidden achievement 1.3%
Resource Depletion Hidden achievement 1.3%
War Hidden achievement 1.3%