Interstellar Marines

Interstellar Marines

Zero Point Software · July 2, 2013 · Action, FPS, Indie, Tactical, Co-op

Buy Interstellar Marines from Gameseal at $2.20 — the cheapest of 7 stores we compare.

PC
Mixed53% · 7,8741playing now
Best price 79 Great deal
$2.20-78%
lowest tracked $2.14
Gameseal Buy at Gameseal

Prices last checked

More games under $5 →

Where to buy Interstellar Marines — official stores

Steam
Steam
Standard Edition · Steam
$9.99
Buy
Humble Store
Humble Store
Standard Edition · Steam
$14.99
Buy
GamersGate
GamersGate
Standard Edition · Steam
-10%
$17.09
$18.99
Buy

Cheapest Interstellar Marines keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

Driffle INC
Standard Edition · Steam
$2.30
Buy
Gameseal
Standard Edition · Steam
$2.20
Buy
Eneba
Standard Edition · Steam
$2.42
Buy
CJS CD Keys
CJS CD Keys
Standard Edition · Steam
$15.44
Buy

Some store links are affiliate links — playze may earn a commission at no extra cost to you. It never changes the price you pay, and the cheapest option is always shown in the Best price box above.

Interstellar Marines price by region

Interstellar Marines costs £1.67 in the United Kingdom, €1.87 in Europe (EUR), $2.20 in the United States, zł8.83 in Poland, $9.99 in Georgia (USD), CA$11.49 in Canada, NZ$11.99 in New Zealand, R$12.00 in Brazil and A$13.99 in Australia right now.

Cheapest Interstellar Marines offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £1.67 −76% £6.95 £1.67 6
Europe (EUR) €1.87 −77% €7.99 €1.87 7
United Statesyour region $2.20 −78% $9.99 $2.20 7
Poland zł8.83 −75% zł34.99 zł8.83 5
Georgia (USD) $9.99 −10% $9.99 — 3
Canada CA$11.49 CA$11.49 — 3
New Zealand NZ$11.99 −10% NZ$11.99 — 3
Brazil R$12.00 −40% R$19.99 R$12.00 4
Australia A$13.99 −10% A$13.99 — 3

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Trailers & screenshots

Watch the Interstellar Marines trailer →

About Interstellar Marines

✦ AI summary

Command an elite special forces unit through tactical sci-fi combat missions with unscripted AI, dynamic environments, and immersive first-person realism inspired by classics like Aliens and Rainbow Six. Fight solo or co-op against intelligent enemies, compete in large-scale sandbox wargames, or face off in multiplayer across destructible maps with no HUD crosshairs breaking immersion.

Interstellar Marines is an immersive tactical sci-fi First Person Simulator in the making, offering a unique blend of tactical gameplay, dynamic environments and non-scripted AI. Play Singleplayer or Co-op/PvP on servers around the world.

Interstellar Marines is inspired by movies such as Aliens, Starship Troopers and Saving Private Ryan; and games such as Half-Life, Deus Ex, System Shock 2, and Rainbow Six 3: Raven Shield.

Interstellar Marines is all about evolving the FPS recipe with the inspirations we've assimilated since the birth of the genre. Our goal is an evolutionary leap forward driven by our compulsive interest in science fiction, role-playing, military realism, and respect for first person immersion.

Interstellar Warfare Initiative


It is the dawn of the 22nd century, a time of great hopes and expectations. The discovery of a new and inexhaustible well of power known as Zero Point Energy has revolutionized space travel. Man has escaped the confines of Mother Earth, and gone on to colonize the solar system.

But far away from public awareness an ambitious military project has already taken Man beyond the final frontier, and into the regions of the stars. The powerful Interplanetary Treaty Organization, ITO, is secretly constructing the first human settlement in another star system.

You are a special forces soldier training to join the Interstellar Marines, a part of the secret Interstellar Warfare Initiative being established to protect humanity against potential threats from the confines of the unknown universe.

It's time to evaluate the Interstellar Warfare Initiative and program evaluations are taking place at The Vault, ITO’s most advanced military facility on Earth enclosed deep beneath Groom Lake, Nevada. Supervised by SARA, ITO’s central neural network AI, SARA will program artificial weather and advanced combat training robots to test each warfare initiative to the limits.

This is where the game begins ...

7 Singleplayer/Co-op Missions


Play 5 co-op and single-player missions against unscripted AI with dynamic environment effects or two pivotal missions inside the Interstellar Marines universe, The NeuroGen Incident and Assault on Starcrown Aerospace. Play singleplayer or co-op with up to three friends in intense action with more co-op and singleplayer missions to come!

Wargames (Sandbox Combat Arena)


Unique sandbox combat arena in the making. Wargames is played across 9 distinct interconnected environment zones allowing 64 players to join in the scavenge for combat points, playing alone or in co-op. We have a special Wargames Steam Leaderboard which tracks Combat Points globally, monthly, and survivors of Wargames.



9 Unique Multiplayer Maps Across 3 Game Modes


Take your friends out in Deadlock, Deathmatch, and Team Deathmatch on maps featuring dynamic environment effects such as time of day, rain, thunder and lightning, emergency lighting, fire alarms, moving platforms etc.

Realistic Simulation


With a physics-based dynamic character controller there are no floating hands, and you can even see your feet! The physically present combat helmet has a HUD projected onto the visor and is affected by dust, rain, fogging, and damage. Aim down the sight for the long shots and use the tactical laser to assist aim when hip firing, as there are no artificial crosshairs to break immersion. Use the intuitive crouch and cover system; spacebar (default) peeks over cover, and looking down leans you forward to see over ledges. You can also shoot out the lights and prowl in darkness, or use the tactical flashlight if you’re afraid of the dark.

We hope you enjoy the game, and look forward to developing it with you as we progress through Early Access!

FOR THE LOVE OF THE GAME,
Your team at Zero Point Software

Interstellar Marines — game info

Platforms
Windows, macOS, Linux / SteamOS
Player modes
Single-player, Co-op, Cross-platform multiplayer
Controller
Partial controller support
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jul 31, 2026
This definitely should be pulled from the store, deader than dead
4 found this helpful
Not recommended Aug 17, 2026
Its from 2013 and still in early access. Pretty dead. The sharkhuman enemies looked very cool, unfortunately it never took off.
2 found this helpful
Not recommended Aug 8, 2026
Abandonned garbage
2 found this helpful
Not recommended Aug 18, 2026
All-time classic abandonware. Truly ahead of its time
1 found this helpful
Not recommended Aug 13, 2026
Great concept of a video game that was ahead of its time. VERY dead by now though.
1 found this helpful
Recommended Aug 19, 2026
RIP was stoked about this one

Community reviews

—

0 reviews

Sign in to write a review.

No reviews yet. Be the first to review this game.

More like Interstellar Marines

News

All news →
Transport Fever 3 price: which edition to buy on launch dayPC

Transport Fever 3 price: which edition to buy on launch day

Transport Fever 3 is out today. The Transport Fever 3 price splits three ways, the loyalty discount has a fortnight-long fuse, and our record shows what the older game really costs.

Sep 29, 2026
No Man's Sky price: how low it gets and when to buyPC

No Man's Sky price: how low it gets and when to buy

The No Man's Sky price has come a long way down since 2016, and the game is on PC Game Pass too. Our tracked 12-month low, the regional key gap, and what to actually pay.

Sep 29, 2026
Sekiro cheap: what our price record shows, and what to avoidDeals

Sekiro cheap: what our price record shows, and what to avoid

Search Sekiro cheap and the results are keyshop listings, not a store discount. Our three-month price record explains the gap, and why so few live offers changes the advice.

Sep 28, 2026
System Shock 2 Remaster free on Epic from 1 OctoberFreebies

System Shock 2 Remaster free on Epic from 1 October

System Shock 2 Remaster free on Epic from 1 to 8 October, alongside BURIED STARS. Our price record shows why its floor has not moved in three months, and why waiting beats buying this week.

Sep 28, 2026
Dead Island 2 cheap: which edition, and what the price doesPC

Dead Island 2 cheap: which edition, and what the price does

Dead Island 2 cheap used to mean under a dollar. Our price record shows the floor has roughly doubled since September - here is which edition to buy, and the one that is a trap.

Sep 27, 2026
Steam Autumn Sale 2026: the games that cannot be discountedDeals

Steam Autumn Sale 2026: the games that cannot be discounted

The Steam Autumn Sale 2026 runs 1-8 October, but Valve's own rules bar every September release from it. Which games are locked out, and what our record says about the two biggest.

Sep 27, 2026
Euro Truck Simulator 2 bundle: which one to buy, what to skipBundles

Euro Truck Simulator 2 bundle: which one to buy, what to skip

The base game has sat near its floor for three months. The Euro Truck Simulator 2 bundle you buy alongside it is the purchase that actually costs you money — and the names mislead.

Sep 26, 2026
Noita Steam key: where to buy, and what the price doesDeals

Noita Steam key: where to buy, and what the price does

A Noita Steam key comes from eleven sellers we track and only one is DRM-free. What our daily price record says about when it is actually cheap.

Sep 25, 2026

Top games right now

All rankings →
  1. 1Counter-Strike 2Free
  2. 2Dota 2Free
  3. 3PUBG: BATTLEGROUNDSFree
  4. 4Grand Theft Auto V Legacy—
  5. 5Terraria$2.20
  6. 6Rust$26.10
  7. 7Team Fortress 2Free
  8. 8Black Myth: Wukong$35.94
  9. 9HELLDIVERS™ 2$26.96
  10. 10ELDEN RING$52.89
  11. 11Apex Legends™Free
  12. 12Left 4 Dead 2$9.99
  13. 13Stardew Valley$14.75
  14. 14Wallpaper Engine$3.99
  15. 15Euro Truck Simulator 2$4.99
  16. 16Dead by Daylight$10.42
  17. 17Red Dead Redemption 2$10.54
  18. 18Baldur's Gate 3$41.99
  19. 19Phasmophobia$18.29
  20. 20War ThunderFree
  21. 21Call of Duty®—
  22. 22ARK: Survival Evolved$14.24
  23. 23Among Us$3.04
  24. 24The Forest$19.99