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Istrolid

Istrolid

In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and s

Released May 6, 2016 Developer treeform Platforms Windows · Mac · Linux Free to PlayBuildingStrategySpaceMultiplayer
View on Steam ↗ Free (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.

87.3%positive2,662 reviews
Recommended · 2 found this helpful

“the cost limitation is kind of stupid since there's no way to avoid it or a sandbox mode, i also think you should increase the build limitations cause i mean who wants a small ship? this game could've been so much more then it is. The game is still worth a play just gets boring…”

— a player, Steam review · 1 hrs played
Recommended · 1 found this helpful

“it gave me great joy playing in 1 match for 8 hours one time”

— a player, Steam review · 60 hrs played
Not recommended · 12 found this helpful

“I have no desire to create an account and go through all the mess of entering my email and password every time I want to play a game. It's a simple little game, it should be able to save my designs and progress locally like every other game since the dawn of gaming.”

— a player, Steam review · 8 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-24 00:15 UTC · history via SteamCharts.

1playing at last check
224-hour peak
1,308all-time peak
0 500 1k 2017 2019 2021 2023 2025 525 avg · May 2016

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.

Freecurrent · sampled 2026-07-26 08:39 UTC
Freelowest since tracking began2026-07-11

Latest official news

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

Jun 12, 2021
Istrolid Update 1.0.1 - Community Balance Council #2

We have run the Community balance council 2 and gotten a series of results guiding things ever so slightly towards a new and more mobile meta. Jump changes, heavy PD-able changes, and some minor tweak

Apr 10, 2021
Istrolid 1.0.0 - Here we are!

The 1.0.0 It’s finally here: 1.0.0. I don’t know what I expected this would be, but here we are! When I was a kid I was captivated by computer games. I had no clue how computers worked. I created a pa

Mar 21, 2021
Istrolid Update 0.51.5 - Community Balance Patch!

Community Balance Council We ran the (https://www.reddit.com/r/istrolid/comments/lxp3i3/community_balance_council_1/) reddit thread where you voted on the balance changes. We took the highest upvoted

Mar 06, 2021
Istrolid Update 0.51.4 - Bug fixes before 1.0.0!

I would like to get some bug fixes out for you as we make our way to 1.0.0. Area Centering We are now going to do area-center instead of mass-center: This makes ships way more centered but it takes aw

Mar 04, 2021
Istrolid Update 0.51.3 - 1.0.0 next!

I know, some of you had trouble running the game. This is mostly due to aging underlying technology called Electron. Well good news I have updated it to the newest version to enable the biggest compat

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

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

GenresFree To Play, Indie, Strategy
Player tagsFree to Play · Building · Strategy · Space · Multiplayer · Indie · RTS · Sandbox · Sci-fi · 2D · Singleplayer · Pixel Graphics (SteamSpy community voting)
FeaturesSingle-player · Multi-player · PvP · Online PvP · Co-op · Online Co-op · Cross-Platform Multiplayer
LanguagesEnglish
Estimated owners500,000 – 1,000,000 (SteamSpy)
Official sitehttp://istrolid.com
Minimum system requirements (PC)

Minimum: OS *: Windows 7 Processor: 32-64bit Memory: 1 GB RAM