Top similar games like Interstellar Marines:

TAKEDOWN is a thinking-person’s shooter; brutal, hardcore and deadly - like the real thing. Not for the faint hearted, Takedown requires you to bring your 'A' game - FPS fans looking for an ultra hardcore experience only need apply!

Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience.

From one of the developers behind the original Rainbow Six® and Ghost Recon® games, comes a thinking-man's first-person shooter featuring in-depth character and weapon customization. Take your time. Think ahead. Get the job done.

Skyfront is a fast-paced multiplayer FPS built exclusively for VR. The game launches you into mesmerising zero-G arenas. But not before equipping you with an array of awesome weapons and impressive special abilities.

Tom Clancy's Rainbow Six® Vegas 2 - the sequel to the award-winning next-generation first-person shooter - returns to Sin City. Tom Clancy's Rainbow Six Vegas 2 is your last chance to rescue America's sexiest city from an escalating terrorist siege that will force you into heart-pounding action from beginning to end.

Pushing the boundaries of what fans have come to expect from the record-setting entertainment franchise, Call of Duty®: Black Ops II propels players into a near future Cold War

You are the leader of an elite squad of Republic Commandos, your mission is to infiltrate, dominate, and ultimately, annihilate the enemy. Your squad will follow your orders and your lead, working together as a team - instinctively, intelligently, instantly. You are their leader. They are your weapon.

A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Play Evolve for free with Evolve Stage 2! Evolve Stage 2 is a next-generation free multiplayer shooter featuring addictive 4v1 gameplay. One player-controlled monster must evade and outsmart a team of four uniquely skilled hunters.

Take on the role of a hardened career criminal executing intense, dynamic heists in constant pursuit of the next “big score”

Work together to survive the devastating Dinosaur horde in huge, endless environments.

Assemble your crew, take to the skies in the premier PvP airship combat game. Guns of Icarus Online is all about flying massive airships, shooting big turret weapons, and working as a team for supremacy of the skies. Everyone as one, victory or death, together.

Midair is a fast-paced jetpack shooter set in a breathtaking new sci-fi universe. Use movement to your advantage, outwit your enemy from every angle, build defenses, and fully customize the way you play. Break the mold of traditional shooters and jetpack your way into a challenging new experience!

You decide the combat role you want to assume in the world of Brink as you fight to save yourself and mankind’s last refuge!

In a dark Cyberpunk world, you (and up to 3 friends) wage war against the all-powerful Federation in this Source-powered FPS/RPG.

A fast-paced VR arcade shooter, where you fire guns, shoot energy bows, and toss explosive spears to defend your base from an alien infestation. The bugs shoot back, so don't forget to duck!

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

Immerse into real, hard american prison riot and test out yourself as a member of the police force. Do you have what it takes to control and recapture most dangerous convicts in the world?

PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.

This edition packages weapon DLC from ten previous expansions as well new featured content.

America’s Army: Proving Grounds is the official game of the U.S. Army and part of the highly acclaimed America’s Army game series. This free military game focuses on small unit tactical maneuvers and puts you to the test in a wide variety of new America’s Army maps and AA fan favorites.

Jump straight into combat in this official standalone FREE total conversion of Arma 3. Argo is a hardcore tactical first-person shooter, in which you fight across unrestricted terrain, and where a single bullet is all it takes. Master your craft to rank up and become (in)famous on the battlefield.

You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.

Zero Hour is a tactical FPS with online team-based game play that takes place in a variety of fictional locations interpreted in Bangladesh with Real-life scale & resource management. It brings a grounded, close quarter combat experience to the game.

From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever wanted in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full AI support included!