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About Interstellar Marines
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, ITOโs most advanced military facility on Earth enclosed deep beneath Groom Lake, Nevada. Supervised by SARA, ITOโs 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.[/url] [h2][b]9 Unique Multiplayer Maps Across 3 Game Modes[/b][/h2] 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. [h2][b]Realistic Simulation[/b][/h2] 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 youโre afraid of the dark. We hope you enjoy the game, and look forward to developing it with you as we progress through Early Access! [b]FOR THE LOVE OF THE GAME,[/b] Your team at Zero Point Softwar
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 youโre 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
Game Specifications
- Single player
- Multiplayer
- Co-operative
- Linux
- Windows
- Mac
System Requirements
Windows
Minimum
- OS *:Windows XP SP3 or Windows Vista
- Processor:2.4 GHz Dual Core
- Memory:2 GB GB RAM
- Graphics:Nvidia Geforce 8800 GT / ATI Radeon HD 4770
- DirectXยฎ:9.0c
- Hard Drive:3 GB HD space
- Sound:DirectX 9.0c Compatible
Recommended
- OS *:Win 7 or later
- Processor:2.4 GHz Quad Core
- Memory:4 GB GB RAM
- Graphics:Nvidia Geforce GTX 280 / ATI Radeon HD 5830
- DirectXยฎ:9.0c
- Hard Drive:3 GB HD space
- Sound:DirectX 9.0c Compatible
- Other Requirements:Broadband Internet connection
macOS
Minimum
- OS:10.7.5 (Lion)
- Processor:2.2 GHz Intel Core 2 Duo
- Memory:2 GB RAM
- Graphics:Nvidia Geforce 8800 / ATI Radeon HD 3850
- Hard Drive:3 GB HD space
Recommended
- OS:10.8.2 (Mountain Lion)
- Processor:2.4 GHz Intel Quad Core
- Memory:4 GB RAM
- Graphics:Nvidia Geforce GT 120 / ATI Radeon HD 4870
- Hard Drive:3 GB HD space
- Other Requirements:Broadband Internet connection
Linux
Minimum
- OS:Linux
- Processor:2.4 GHz Dual Core
- Memory:2 GB GB RAM
- Graphics:Nvidia Geforce 8800 GT / ATI Radeon HD 4770
- Hard Drive:3 GB HD space
Recommended
- OS:Latest version of Ubuntu (14.04)
- Processor:2.4 GHz Quad Core
- Memory:4 GB GB RAM
- Graphics:Nvidia Geforce GTX 280 / ATI Radeon HD 5830
- Hard Drive:3 GB HD space
- Other Requirements:Broadband Internet connection
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Price History
Frequently asked questions about Interstellar Marines
What is the cheapest price for Interstellar Marines Steam key?
The cheapest redeemable Steam key currently listed is $9.99 at Steam. Prices were last checked on October 23, 2026.
View key offersWhat is the difference between key and account offers for Interstellar Marines?
Gamescade currently lists 16 redeemable keys and no account offers. A key is redeemed on your own account, while an account offer provides access to a separate account containing the game.
View key offersWhat are the PC system requirements for Interstellar Marines?
Minimum PC requirements for Interstellar Marines include a 2.4 GHz Dual Core CPU, 2 GB GB RAM, and a GPU with Nvidia Geforce 8800 GT / ATI Radeon HD 4770. See the full requirements below.
What is the Interstellar Marines release date?
Interstellar Marines was released on July 2, 2013.
Is Interstellar Marines single-player, multiplayer, or co-op?
Interstellar Marines supports Single player, Multiplayer, and Co-operative.
Where can Interstellar Marines offers be activated?
Current Interstellar Marines key offers can be activated on Steam. Check the retailer page for region restrictions before buying.
Which platforms have active Interstellar Marines deals?
Gamescade currently lists active Interstellar Marines deals for PC.
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