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Interstellar Space: Genesis

Interstellar Space: Genesis

Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!

Released Jul 25, 2019 Developer Praxis Games Platforms Windows StrategyIndie4XSci-fiSpace
View on Steam ↗ $9.89 (US · as of 2026-10-21)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-28 · quoted reviews as of 2026-10-16.

84.4%positive850 reviews
Recommended · 216 found this helpful

“Master of Orion 2 (MOO2) has cast a long shadow over the 4x genre, basically being Civilization in Space, where you develop planets, not cities, and expand into the galaxy. But no later game has really come close to matching Master of Orion 2's features, those that sustained…”

— a player, Steam review · 418 hrs played
Recommended · 102 found this helpful

“This is another MOO2 clone. I really find amazing that game from 1996.still has such impact in 2022. So, the game can easily be called MOO 2022 edition. This is the game that managed to really improve on original concept but failed miserably on battle implementation. The Good: -…”

— a player, Steam review · 23 hrs played
Recommended · 68 found this helpful

“So you're probably wondering. "How's ISG different from your usual 4X? Well the difference is more or less in its remote exploration mechanic. You're always exploring from the very start, to the very end. Planet's, resources, ruins etc are all hidden in the Cosmos. Visiting a…”

— a player, Steam review · 14 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.

196all-time peak
0 100 200 2020 2021 2022 2023 2024 2025 2026 No data collected for this period 98 avg · Jul 2019

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-10-21.

65achievements
3.7%median completion
0.3%rarest: Crash Course
33.3% of players 25.1% of players 24.6% of players 23.9% of players 18.6% of players 18.2% of players 17.6% of players 16.0% of players 15.7% of players 15.1% of players 14.6% of players 13.4% of players 12.6% of players 12.3% of players 11.7% of players 11.6% of players 11.4% of players 10.6% of players 10.1% of players 9.4% of players 8.4% of players 7.3% of players 7.1% of players 7.0% of players 6.5% of players 6.3% of players 5.4% of players 4.9% of players 4.5% of players 4.4% of players 4.0% of players 3.9% of players 3.7% of players 3.7% of players 3.2% of players 3.2% of players 3.0% of players 2.8% of players 2.8% of players 2.5% of players 2.5% of players 2.5% of players 2.3% of players 2.2% of players 2.2% of players 2.2% of players 1.9% of players 1.6% of players 1.2% of players 1.1% of players 1.0% of players 1.0% of players 1.0% of players 0.9% of players 0.8% of players 0.7% of players 0.7% of players 0.7% of players 0.6% of players 0.6% of players 33.3% 0% most earned rarest
Almost everyone has
33.3%General Contractor — Obtain maximum infrastructure level in a colony
25.1%To Boldly Go — Build a survey ship as your first ship in your homeworld
24.6%Riches from the Sky — Have 5 active exploitations in asteroid belts at one time
Rarest badges of honor
0.3%Crash Course — Deal a total of over 5000 damage in a single game using the Death Wish evolution perk
0.5%Archaeological Destiny — Have colonies in 7 planets with ruins using the Unbridled Power evolution perk
0.5%Defensive Network — Protect at least 8 colonies at the same time with the Capital Defense Force using the Supercolony evolution perk

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.

$9.89−67% right nowcurrent · sampled 2026-10-21 11:53 UTC
$29.99base price
$9.89lowest since tracking began2026-07-25
US9.89 USD−67%
EU9.23 EUR−67%
UK7.58 GBP−67%
Australia14.17 AUD−67%
Canada11.21 CAD−67%
Japan1,019 JPY−67%
Brazil19.13 BRL−67%
China29.70 CNY−67%

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

Brazil≈$3.8 China Japan Canada US Australia UK EU≈$10

Cheapest → most expensive, converted to USD at ECB reference rates (2026-10-21). Relative comparison only.

$0 $25 $50 07-25 08-10 08-28 09-14 10-02 10-21

Latest official news

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

Jul 07, 2026
ISG Dev Diary 27: News on Expansion III (ETA: 2026)

Hello everyone, As we pass the midpoint of the year, I wanted to share an update on the progress of Expansion III and its expected release window. Expansion III slated to release later in 2026 Followi

Dec 29, 2025
ISG Dev Diary 26: Expansion III in 2026

Hello everyone, Today we want to share an important update about the future of ISG , and more specifically about the long-awaited third expansion . Expansion III is coming in 2026 After many months of

Sep 29, 2025
Update 1.6.4 Released

Hello everyone! It's been a few months since we released the free 1.6.3 update . We hope you are enjoying that update with its new features and improvements. In the meantime, we've been listening to y

May 22, 2025
Interstellar Space: Genesis - Free 1.6.3 Update Released!

Hello everyone! I'm thrilled to announce that the new and free 1.6.3 update for Interstellar Space: Genesis is now officially available to all players! This update has been on the unstable branch for

May 19, 2025
ISG Dev Diary 25: Update 1.6.3 Beta on unstable branch

Hello everyone! I'm happy to announce that the new and free 1.6.3 Beta update is now available and ready for public testing on Steam's unstable Beta branch! Here are the changes of 1.6.3 Beta. But fir

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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.

GenresIndie, Strategy
Player tagsStrategy · Indie · 4X · Sci-fi · Space · Turn-Based · Turn-Based Strategy · Exploration · Singleplayer · Turn-Based Tactics · Grand Strategy · Turn-Based Combat (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Cloud · Family Sharing
LanguagesEnglish * *
Achievements65
Official sitehttps://www.interstellarspacegame.com/
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: 64-bit Windows 10 / 8.x / 7 Processor: 2.5Ghz Intel Core 2 or equivalent Memory: 4 GB RAM Graphics: Intel HD 4000 series / ATi Radeon HD 4650 series / NVidia GeForce GT 610 or equivalent / or a graphics card with 1GB+ video memory DirectX: Version 11 Storage: 8 GB available space Sound Card: DX11 compatible Additional Notes: Minimum Resolution: 1280 x 720