Brand new update with Hell Week wargame events! Interstellar Marines resurrects the old school tactical FPS, offering a unique blend of co-op, role-playing and nonlinear gameplay. Play co-op or multiplayer on servers around the world.
User reviews: Mostly Positive (5,503 reviews)
Release Date: Jul 2, 2013

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

“We're a small team pouring our blood, sweat and tears into delivering an FPS that merges the best from tactical shooters with believable science fiction and role-playing-- think Half-Life meets System Shock, giving birth to Rainbow Six in space!

By purchasing Early Access to Interstellar Marines, you’re actively supporting the development of the game, and as we release frequent updates we invite you to give your feedback and suggestions to help us create the best game possible.”
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Buy Interstellar Marines

Early Access to Interstellar Marines, including all future updates and expansions.

Buy Interstellar Marines - Spearhead Edition

Early Access to Interstellar Marines including all future updates and expansions + Join the Spearhead unit (unique honorary game profile) + Your username in the Hall of Honor and your name in the credits of the game + Digital download of the Interstellar Marines: The Beginning soundtrack and all future soundtracks + Digital download of art book when it’s ready + Get 1 extra Interstellar Marines Steam Key to gift to a friend.

Buy Interstellar Marines 4-Pack

Get one copy for yourself and give the other three to friends!

Buy Interstellar Marines - Upgrade to Spearhead Edition

Interstellar Marines - Spearhead Edition Upgrade

 

Recommended By Curators

"Nice Early Access First person tactical shooter game with more to come. Solid game; Campaign, Co-op, Multi-player with lots of fun and things to do."
Read the full review here.

Recent updates View all (29)

June 26

Hell Week: Hotfix 3



Morning Marines,

We have another Hell Week hotfix to share with everyone. We now added more information and warning for elimination as well as an ability to rejoin during late join. We also fixed some major bugs that you have given feedback to! We hope you enjoy this hotfix and hope to see you in-game!

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

Update 19c - Hell Week: Hotfix 3

Version: 0.5.19c
Released: 26th June, 2015

What's New

ADDED: If a player leaves a Hell Week server, and has not been killed by another player or suicided, he can rejoin the game during the late join period
ADDED: Additional AI SARA announcements

Improvements

UPDATED: When elevators start to move up, any players spawning in will spawn next to the top of the elevator
UPDATED: Adjusted the join time and late join time for Hell Week clusters
UPDATED: The 'You are up for elimination' message to only appear once the elimination phase starts
UPDATED: In spectator mode dead players are greyed out
UPDATED: In spectator mode, the name for all players appear when in freecam
UPDATED: Numerous additional small changes and fixes to all Hell Week maps

Fixes

FIXED: "Inability for some players to connect to a Hell Week game when the join button is active"

Known Issues
  • The mission overview is currently a place-holder, and will be completed in a later update
  • Some crates may require several attempts to open
  • Players joining within a few seconds of a Hell Week starting may get an error that they cannot join. This is due to out-of-sync clocks. Please wait a few seconds and rejoin
  • Players may occasionally lose their inventory when moving between servers
  • Some new achievements and TP rewards may not work. We're investigating
  • The HUD names and kill messages will be clipped on aspect ratios that are less wide than 16:10
  • The game will stop updating when switching out of fullscreen in Windows (known bug in Unity 4). If you are on a moving elevator or platform, this will cause you to fall through it
  • View jittering may occur when jumping on lossy networks
  • Audio may cut off partially/completely on weapon/helmet sounds
  • Other players will seem to float above or interpenetrate while standing on a moving dynamic platforms (network smoothing will exaggerate this effect)
  • Potential to fall through elevator when moving
  • When joining an in-progress The NeuroGen Incident game, additional waypoints may be visible
  • Player may sometimes spawn with no ammo in one or both weapons. Reloading fixes this

You may need to restart your Steam client for it to recognize and download the update.

11 comments Read more

June 18

Hell Week: Hotfix 2



Attention!

Today we have a new client-side hotfix adding new features and bug fixes. We also have a Steam Leaderboard for Hell Week here which tracks Combat Points globally, monthly, and survivors of Hell Week



We also have a new Hell Week server called Hell Week Finals. Hell Week Finals is a special event for those who survive Hell Week and have the most accumulated Combat Points. We’ll let you know more about the Hell Week Finals soon.

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

Update 19b - Hotfix 2

Version: 0.5.19b
Released: 18th June, 2015

What's New

ADDED: Combat points for Hell Week winners are recorded in the Steam Leaderboard
ADDED: Name and score to HUD
ADDED: Elimination warning to HUD
ADDED: Elimination warning to scoreboard
ADDED: Announcement by SARA when zone is full
ADDED: Elimination phase initiated message to helmet, and message over in-game PA to explain how the eliminations work

Improvements

UPDATED: Crates that have been opened in another zone are now seen as open by the player (fixes the "crate does not open" bug)
UPDATED: Scoreboard now shows full 64 players
UPDATED: Maps have had a graphics pass, with several hundred small fixes and improvements
UPDATED: Hell Week server button moved to top of server browser tab
UPDATED: Name of the map you are loading into when you join a Hell Week has been removed
UPDATED: Collision has been removed from bushes in Hell Week
UPDATED: Eliminations have been altered so after the first 30 minutes 1 person is eliminated every 2 minutes
UPDATED: AI SARA player elimination messages moved from helmet to in-game PA system

Fixes

FIXED: "Adjusted elevator spawn-in delay to ensure players do not spawn on a moving elevator"
FIXED: "Welcome tutorial door which did not open"
FIXED: "Suit HUD deactivates on 50% damage"
FIXED: "Dummy crates removed from Mountains"
FIXED: "HUD HP bug which indicated the player's HP was 12"
FIXED: "No weapon showing when playin another game mode after Hell Week"
FIXED: "Collider adjusted on crates in Hell Week to ensure players are not involuntarily catapulted out of the map"
FIXED: "Spawn elevator z-flickering and collision to prevent looking through the elevator walls"

Known Issues
  • The mission overview is currently a place holder, and will be completed in a later update
  • Some crates may require several attempts to open
  • Players joining within a few seconds of a Hell Week starting may get an error that they cannot join. This is due to out-of-sync clocks. Please wait a few seconds and rejoin
  • Some new achievements and TP rewards may not work. We're investigating
  • The HUD names and kill messages will be clipped on aspect ratios that are less wide than 16:10
  • The game will stop updating when switching out of fullscreen in Windows (known bug in Unity 4)
  • View jittering may occur when jumping on lossy networks
  • Audio may cut off partially/completely on weapon/helmet sounds
  • Other players will seem to float above or interpenetrate while standing on a moving dynamic platforms (network smoothing will exaggerate this effect)
  • Potential to fall through elevator when moving
  • When joining an in-progress The NeuroGen Incident game, additional waypoints may be visible
  • Player may sometimes spawn with no ammo in one or both weapons. Reloading fixes this

16 comments Read more
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Interstellar Marines - Regular Edition

Purchase the Regular Edition of Interstellar Marines and receive:

  • Early Access – be part of the development of Interstellar Marines and provide your feedback and suggestions as we expand the game update after update.
  • All In – receive all future updates and expansions completely free of charge.

Interstellar Marines - Spearhead Edition

In addition to Early Access to Interstellar Marines (including all future updates and expansions), the Spearhead Edition includes:

  • Access to Beta Builds of New Updates – Occasionally Spearhead owners receive access to early beta builds of new updates before they're released publicly, allowing you to experience new content in advance!
  • Spearhead identity – A unique honorary game profile that with time will grant you access to special skins, helmets, weapons etc. (does not alter gameplay).*
  • Hall of Honor & Credits – Your name will be acknowledged in a special in-game Hall of Honor and you’ll also get your name in the credits.*
  • Digital Soundtracks – Download the Interstellar Marines: The Beginning soundtrack as well as all future soundtracks as they are released.
  • Digital Art Books – Download digital PDFs released periodically, filled with high resolution concept art, screenshots and behind the scenes information.*
  • Extra Steam Key – You’ll receive an additional copy of Interstellar Marines to trade or gift to a friend.
  • Digital Concept Art – You’ll receive early copies of concept art and other images in a special Spearhead folder on your hard drive.
*Not available yet

Steam Greenlight

About This Game

Interstellar Marines resurrects the old school tactical FPS, offering a unique blend of co-op, role-playing, and non-linear gameplay. Set in a believable future, you take on the role of an elite operative handpicked to join Project IM, a top secret military program being assembled to protect mankind from all dangers outside our solar system.

Interstellar Marines is inspired by Aliens, Half-Life, System Shock 2 and Rainbow Six 3: Raven Shield. Our game is all about evolving the FPS recipe with all 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.

Welcome to Project: IM



Since man first raised his head to the stars above, he has dreamed of conquering space. Interstellar Marines is the age old dream come true. 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 already constructing the first human settlement in another star system. You are a new member of the Interstellar Marines, a secret battalion within the ITO special forces created to protect humanity against potential threats from the confines of the unknown universe.

Now gear up Marine, we’ve got training to do! Welcome to Project IM.

New Hell Week Event Featuring 9 New and Unique Areas Where 64 Players Battle Until Only 4 Are Left Standing!

During the Steam Sale this training event will run every 4 hours in each timezone, check the countdown on the ingame server list to see when the next event is set to begin. We also have a Steam Leaderboard for Hell Week here which tracks Combat Points globally, monthly, and survivors of Hell Week. We'll let you know more about the Hell Week Finals soon.



7 Singleplayer/Co-op Missions and 9 Unique Multiplayer Maps Across 3 Game Modes Available!

We also have seven singleplayer/co-op missions available to play, including the The NeuroGen Incident and Assault on Starcrown Aerospace. Two pivotal missions inside the Interstellar Marines universe. Play singleplayer or co-op with up to three friends in intense action with more co-op, singleplayer, and multiplayer missions to come!

Features Currently Available


This is what you get when you play right now.
  • The Assault on Starcrown Aerospace singleplayer and co-op mission with sandbox gameplay, randomized locations, and multiple difficulty levels.
  • The NeuroGen Incident, a singleplayer and co-op mission on a massive level with randomized locations and multiple difficulty levels
  • 5 additional co-op and single-player challenge missions against our unscripted AI for you and your friends to test your abilities.
  • Deathmatch, Team Deathmatch, and Deadlock multiplayer game modes in highly dynamic environments.
  • 9 unique indoor and outdoor maps featuring dynamic environment configurations such as time of day, rain, thunder and lightning, emergency lighting, fire alarms, movable platforms etc.
  • 100% dynamic lighting and real-time shadows as well as destructible light fixtures so you can prowl the darkness at will.
  • Full-body first person character simulation (no more floating hands!) with a physics-based dynamic character controller.
  • Advanced and intuitive crouch and cover system.
  • Physically present combat helmet with futuristic HUD projected onto the inside of the visor glass and affected by light and rain.
  • Full spectator with freecam, first and third person views, and movie mode (which removes HUD elements). This gives you maximum flexibility when recording movies, livestreams, and cast matches!
  • Experience various maps and prototypes in “Playground” mode (singleplayer).
  • Play on high capacity dedicated servers in the US, Europe, Australia, Russia and Brazil.
  • Submachine Gun (CE6) and Assault Rifle (AR-3) with semi-auto, burst, and full-auto selective fire.
  • Shoot from hip or aim down the sight for increased accuracy.
  • Toggleable tactical flashlight for when it’s pitch black.
  • Toggleable laser to assist your aim while hipfiring (no artificial crosshairs).
  • Smooth network play even on high latency connections with packet loss.
  • Realistically simulated ragdolls with momentum transfer.
  • 28 Steam Achievements.

Vision of Interstellar Marines

This is our end goal for the game. There’s still a long way to go so join us and help shape Interstellar Marines into the game you want it to be with your feedback and suggestions!

  • First Person Simulation
    A razor-sharp focus on creating a truly immersive First Person Simulator via distinct graphics, audio, and gameplay. *
  • Tactical Co-op
    The entire game experience designed from the ground up to support up to 4 players in co-op, with true cooperative interaction. *
  • Progressive Role-Playing
    Flat and classless progressive character development and skill system that is not dumbed down for consoles.
  • Nonlinear Game Design
    Open and dynamic game world that always presents a multitude of tactical options for navigating the environment. *
  • Customizable Arsenal
    A comprehensive selection of weapon models and types, extension upgrades and equipment options, allowing on-the-fly choice in each tactical situation.
  • Thinking AI
    Enemies that react to input from you and the surrounding game world. We would rather have one smart thinking enemy than five stupid ones. *
  • Believable Science Fiction
    Realistic and rich sci-fi environments, ranging from claustrophobic space stations to large outdoor worlds. *
  • Interactive Storyline
    A cinematic narrative centered around first contact with another sentient species, where your choices and actions will have consequences.
    *This is already completed or partially completed in Interstellar Marines

    Roadmap (Near Future)

    These are the features we are planning on adding fairly soon, and are in no particular order. Many of them have already been partially completed:
    • Steam features (stats, achievements, friends).*
    • Advanced character movement (sprint to be added).*
    • Tactical gameplay (fatigue and adrenaline).*
    • Co-op features (multiplayer).*
    • Weapon features (modifications/accessories, rate of fire, tactical reload). *
    • Extend general game UI and HUD system.
    • In-game profiles.*
    • More weapon types and models.*
    • New multiplayer maps.*
    • Environment variations, theme and context.
    • Shooting range (singleplayer).
    • Developer Commentary mode.
    • Oculus Rift support.
    • Server / LAN support.*
    • Artificial Intelligence (AI).*
    *This is already partially completed and in Interstellar Marines

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

System Requirements

Windows
Mac OS X
SteamOS + Linux
    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
    • DirectX®: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
    • DirectX®:9.0c
    • Hard Drive:3 GB HD space
    • Sound:DirectX 9.0c Compatible
    • Other Requirements:Broadband Internet connection
    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
    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
Helpful customer reviews
277 of 327 people (85%) found this review helpful
31.6 hrs on record
Posted: June 12
Early Access Review
I like this game, I really do. Why won't I recommend it then? Let me explain.
Currently, the game is in decent shape, with nice gameplay, nice graphics, a reasonable amount of content for the price. The problem is, the developers say it will have so much more. The "vision" of IM is quite grand, and it would be great if it actually happened. I just doubt it will happen...

I mean, the progress is waaay too slow. Updates are few and far between (once every two-three monts), and when an update does comes out, new features are almost non-existant. Even many of the bug fixes that are stated as fixed on the changelog, are actually not fixed. It's like "This update, we are going to release the sprinting and fatigue system! In three months we will fix the broken sprinting and fatigue system! Three months after that, we will impliment our super advanced crouching system! AND, don't forget that after six more months we will add a flash light! Our game is uber-tactical with ultra advanced and realistic (unimplimented) skin system! Land sharks are just around the corner (and have been for the last year or so)! And of course, stay tuned, because we are going to take this game (advertised as a mainly SP/COOP game) and add a ♥♥♥♥♥♥ MP survival mode that no one wants, instead of focusing on the campaign or on adding more guns!"

They advertise their crouching and sprinting systems as "realistic", "advanced" and "revolutionary", and yet I do not see how they are different from any other FPS... And this is what gets to me. This dishonesty on the part of the developers.
If they would advertise the game as it is, and not throw in things they will get around to in about ten years, I would recommend it. It is pretty enjoyable as it is. But seeing as the developers are dishonest, and insist on misleading the players, I will not recommend this game!
Was this review helpful? Yes No Funny
154 of 187 people (82%) found this review helpful
1 person found this review funny
2.1 hrs on record
Posted: June 15
Early Access Review
Guys, I have been waiting for this game for almost 10 years. I've supported the development by purchasing the spearhead version of the game before it was on steam and afterwards I bought it again on steam to support further. I've purchased several bagdes of support from their website and even bought some of the company shares that were on sale a few years ago. I've seen this game go through many different development stages. The game simply is not what it had been advertised as back in 2006, or maybe it was 2005. I am not sure but at any rate I do not expect it to deliver anymore.

There are people who are happy with the current state of the game and I'm glad it gets support. However, as someone who has been waiting for this game since it was first announced I believe there are some things that have not been delivered. I do not expect a game that has been in develoment for this long to be the same game that it was announced as and frankly from what I've played so far that expectation might be correct.

I do not recommend this game to anyone, and before you decide to buy it I would like you to be aware that this game has been in develoment almost as long as Duke Nukem Forever and that you should look into it more before you decide that you truly want it.
Was this review helpful? Yes No Funny
53 of 70 people (76%) found this review helpful
1 person found this review funny
3.1 hrs on record
Posted: June 18
Early Access Review
I simply cannot recommend this game at present. The concept is good, but it seems the developers take forever to release updates and the game is still missing some extremely important mechanics to make it worthwhile. While the graphics and sound are fairly good there is not really much else to say in favour of the game at present.

- You cannot create your own servers. You are limited to a handful that the devs provide which are map/gametype locked. Their "reason" for not releasing the server-side files is that they are scared people are going to reverse engineer it. Utter ♥♥♥♥♥♥♥♥.

- Only 2 weapons that are very similar. Infinite ammo, no pickups in the game world.

- Enemy AI is sub-par at best and laughable at worst.

- Only 2 co-op missions (at the time of this review) - so not a lot of content if you buy the game for co-op instead of PvP or Player vs Bot.

- Some of the level design is wonderful, others may very well drive you to the brink of insanity due to poorly communicated objectives, a broken waypoint system and some truly atrocious level design.

- The tutorial doesn't even work. You get stuck at a door and cannot continue.

All-in-all, it's very lackluster. The sad thing is, they have the foundations for a great game here, but with devs that are taking forever and ignoring some massive features, I say pass on this one for now.

Jimbo Rating: 4/10
Was this review helpful? Yes No Funny
62 of 99 people (63%) found this review helpful
1 person found this review funny
26.9 hrs on record
Posted: June 2
Early Access Review
Realistic, immersive - and humbling. You are vunlerable - and you feel it. Outstanding attention to detail. Dev team is holding to the highest standards and they obviously are not interested in compromise for the sake of going to market.

This developer should be invested in. They are doing it right.
Was this review helpful? Yes No Funny
40 of 64 people (63%) found this review helpful
1 person found this review funny
2.1 hrs on record
Posted: June 9
Early Access Review
This is by far the biggest mistake of a purchase i have ever made in my life. I bought the spearhead edition thinking maybe i could contribute to the designers of this game that originally looked really good.
PROS-The gfx, sounds and atmosphere is really nice
-Has a pretty good concept(lots of potential)

CONS- Forever in early access
- Lack of Everything (only 2 guns, litterally 1 or 2 playable online rooms..)
- The content that is available is very bland and repetative.
- I have a lot of problems with the controlls bugging out and not being able to move at times.

The Devs are extremely defensive about complaints and dont want to hear anybodys ♥♥♥♥, instead of taking it as constructive critisism. For how long this game has been in development, its really not going anywhere and seems like it just stopped and is completely deserted. I am trying my hardest to see if steam can refund this for me. Its infact so bad that i didnt give any friend my FREE copy of the game.
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