Top similar games like Outcast on Mars:

A mining asteroid is falling toward Earth. Lead a squad of four specialists aboard a procedurally generated station and restart its engines before impact. Droids and something native to the rock are already inside. The clock never stops. Neither do they.

Uncover the fate of Colony 1 on Mars and survive against native horrors in this evolving sci-fi horror adventure.

You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.

A first- and third-person shooter. It combines several genres, including shooter, horror, sci-fi, and time travel.

The Fibrous - Sci-Fi Online or Single-Player TPS (Over-The-Shoulder) covering the story of an ex-marine recruited by what's left of the military to help take back Earth after a meteor crash-lands into Earth and aliens with fiber-like skin emerge, thinking they can take this planet for their own.

Mauled is a Free-To-Play indie TPS by a solo developer. Fight relentless hordes alone or in online Co-op across varied maps. Collect tiered weapons, trigger tactical traps, and upgrade your character's stats as the difficulty rises round after round. Survival is your only goal.

Prepare to board the Heckel and Thomas as a Black ops CDF detachment who were sent to investigate the disappearance of the long lost colonization ship. Keep your team teammates alive to evolve more stories and stand a chance of survival with 3 different endings.

Breath of Space is a third-person shooter rogue-lite roguelike hybrid where your robotic companion carries your save file. Battle your way through the Aegea Space Mining Facility, shoot threats, and unlock powerful upgrades. Be vigilant; if your companion is dead, all progress is lost!

Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.

A sci-fi exploration third person shooter about anomalies hunting down and containing anomalies. Command a squad of powerful mercenaries, travel through strange and mysterious worlds, and fight monstrous foes to capture and research them!

No More Light is a narrative survival shooter where humanity’s last remnants battle an alien insectoid invasion. Thrown into a post-apocalyptic world, you’ll turn enemies into weapons, undergo a deadly metamorphosis, control weather, and fight for survival in brutal, high-stakes combat.

Attack from Outer Space. Classic old-school First/Third person shooter. Fight against zombies, mutants, monsters to save the Earth!

You will play as a mechanical creature powered by the energy of millions of souls. Under the extreme violence, blood, and thrill of fight, tell you a story of non-individual heroism.

Single-player action-adventure. As an agent of the Manekin Order, land on a fog-shrouded island veiled by an electromagnetic storm; wield modern weapons to track the missing agent and uncover the island’s dark story.

The sci-fi survival-horror classic returns, completely rebuilt to offer an even more immersive experience — including visual, audio, and gameplay improvements — while staying faithful to the original game’s thrilling vision.

This is an open-world zombie survival game set in a quarantined city. You play as a student left behind due to missing the evacuation convoy. Together with classmates and other survivors, you must defend the school, survive, and await rescue.

A dark survival action game set in a world overrun by infection. Progress through story-driven levels, complete objectives, fight infected enemies in close combat, and use stealth to eliminate threats.

Omniscient is a first person horror set aboard a research ship drifting in Neptune's orbit. Your crew is gone. The power is out. And something else lurked onboard. Unarmed and alone, trust your newly enhanced senses to survive. They are your greatest gifts, after all.

Zombie virus swept the world, the infected people were isolated to some closed islands. Some organizations hold zombie hunting competitions. In a hunting, you're infected with the virus and abandoned on an island. The hunt is not over and you've gone from hunter to prey.

A third-person open-world zombie survival RPG. Scavenge an above-ground town and the tunnel system beneath it, build your survivor across 25 armor slots, and fight the infected solo or in 4-player online co-op. Small world, growing every month.

Nowhere Dawn is a survival action game set in a collapsed world. Move through cities and towns haunted by the infected, and follow the traces left behind by those who disappeared.

Survive to escape the horrors of Callisto and uncover the dark secrets of Jupiter’s dead moon.