Co-op games like Cepheus Protocol

Want something that feels tense and replayable the way Cepheus Protocol does? These co-op games are worth a look next. You can bring friends along for most of these.

Red Solstice 2: Survivors
Year 117 After Earth, Mars is overrun by STROL mutants, and your Cell squad is humanity's backup plan. Grab up to seven co-op friends, pick from six classes, and hold the line in real-time tactical missions while biomass spreads across the map. Plan fast, shoot faster, research something bigger for next time.
Tense, Replayable, Dark
70% of 2,586 Steam reviews are positivePlayers online now: 11$14.99
DREADZONE
Dreadzone is a survival game set in a deadly quarantine zone. Scavenge for resources, craft tools, build shelter, and survive against dangerous animals, zombies, mutants, and other survivors. Explore the zone where desperation drives everyone to do whatever it takes to survive.
Tense, Dark
51% of 1,189 Steam reviews are positive$24.99
Codename CURE II
Build a squad with co-op friends, pick from five military classes, and push through hordes in bomb-plant extractions or wave survival on maps that rebuild every run.
Tense, Replayable, Dark
77% of 1,444 Steam reviews are positivePlayers online now: 27Free
HumanitZ
HumanitZ is an isometric open-world zombie survival sandbox where you and co-op friends scavenge cities, hunt and farm in the country, and fight zeeks together. Build a fortified base, pile into drivable vehicles, and see how long humanity lasts with backup.
Tense, Replayable, Dark
74% of 11,621 Steam reviews are positivePlayers online now: 1,332$19.99
Afterinfection
Afterinfection is a brand new zombie survival game designed in Unreal 4 and being developed by a small team from Thailand. After creating your survivor, you’ll start with nothing and have to make your way across a large island searching for food, water, weapons, and crafting supplies.
Tense, Dark
56% of 468 Steam reviews are positivePlayers online now: 7$2.24
State of Survival
Survive the Zombies War in this RPG game of Apocalypse and Survival
Tense, Dark
55% of 483 Steam reviews are positivePlayers online now: 109Free
Atom Zombie Smasher
Atom Zombie Smasher puts you and up to two co-op friends in charge of a city evacuation, placing snipers, artillery, mines and helicopter pickup zones while pink zombies chase yellow civilians across the map. Rounds are short, loud and easy to share, with fully destructible blocks and a new random city each run.
Tense, Replayable, Dark
90% of 1,116 Steam reviews are positivePlayers online now: 2$9.99
Survivalist: Invisible Strain
Ten years after the infection, you and up to three co-op friends carve out a settlement in the zombie wilderness. Talk, recruit, feed and house survivors, farm and hunt, then hold your walls together when raiders come and someone in camp might be infected. A scrappy colony sim built for shared survival.
Tense, Replayable, Dark
87% of 4,083 Steam reviews are positivePlayers online now: 145$11.99
The Front
The Front is a post-apocalyptic open-world survival crafter where you and co-op friends team up as time-traveling resistance fighters. Gather, craft, build a trapped-up base, roll out in tanks and helicopters, and raid enemy camps together.
Tense, Replayable
66% of 9,527 Steam reviews are positivePlayers online now: 45$19.99
TRAPPED
Something has gone terribly wrong in TRAPPED Alaska. Except for you, and a handful of survivors, the whole town has been emptied. Everywhere, what should be water has been replaced by a black semi-sentient sludge that seems to change everything it touches. And it’s rising...
Tense, Dark
45% of 248 Steam reviews are positive$1.99
Outpost: Infinity Siege
Command a mobile outpost, carry a strange XEN firearm, and push into forbidden Signet territory with co-op friends. You gather resources, bolt guns and walls onto your base, then hold the line together when the machines come. Worth playing for that shared shift between looting runs and last-stand defense.
Tense, Replayable, Dark
65% of 11,679 Steam reviews are positivePlayers online now: 55$24.99
ZEPHON
ZEPHON is a post-apocalyptic 4X where you and co-op friends each run a survivor faction, build cities, research strange tech, and fight turn-based battles on the main map. Team up against the horrors, trade and ally, or turn on each other before the final titan war.
Tense, Replayable, Dark
83% of 1,903 Steam reviews are positivePlayers online now: 114$39.99

Cheaper than Cepheus Protocol

Red Solstice 2: Survivors

Year 117 After Earth, Mars is overrun by STROL mutants, and your Cell squad is humanity's backup plan.

$14.99

Afterinfection

Afterinfection is a brand new zombie survival game designed in Unreal 4 and being developed by a small team from Thailand.

$2.24

Atom Zombie Smasher

Atom Zombie Smasher puts you and up to two co-op friends in charge of a city evacuation, placing snipers, artillery, mines and helicopter pickup…

$9.99

Survivalist: Invisible Strain

Ten years after the infection, you and up to three co-op friends carve out a settlement in the zombie wilderness.

$11.99

TRAPPED

Something has gone terribly wrong in TRAPPED Alaska. Except for you, and a handful of survivors, the whole town has been emptied.

$1.99

Rebel Inc: Escalation

Rebel Inc: Escalation puts you and co-op friends in charge of stabilizing a war-torn country.

$14.99

Plague Inc: Evolved

Team up with a co-op friend and end the world together: two plagues, one planet, and humanity fighting back harder.

$2.99

ZED ZONE

Scavenge a hostile open world, craft and mod your gear, raise a fortified base and push toward escape, alone or with friends.

$7.19

Executive Assault

One of co-op friends runs the whole corporation from above while the rest fight for it on the ground.

$12.99

Survivalist

One year after civilization collapses, hedge fund manager Joe Wheeler climbs out of his bunker hungry.

$4.99

Z-Collapse

Inspired by Max Brooks' World War Z novel, Z-Collapse takes you into a worldwide zombie apocalypse.

$12.99

Ashes of the Singularity: Escalation

A massive-scale real-time strategy game where you and co-op friends command thousands of units across huge maps.

$5.99

Hidden gems like Cepheus Protocol

The Scouring

The Scouring is a fast-paced fantasy RTS where you and co-op friends build bases, raise human or orc armies, and hold out against nightly undead…

$24.99

ZeroSpace

Team up in the Orion sector in this sci-fi RTS where you command infantry, mechs, artillery, and orbital strikes.

$39.99

Codename CURE II

Build a squad with co-op friends, pick from five military classes, and push through hordes in bomb-plant extractions or wave survival on maps that…

Free

Frontline Crisis

Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis!

$5.99

Survivalist: Invisible Strain

Ten years after the infection, you and up to three co-op friends carve out a settlement in the zombie wilderness.

$11.99

ZEPHON

ZEPHON is a post-apocalyptic 4X where you and co-op friends each run a survivor faction, build cities, research strange tech, and fight turn-based…

$39.99

Ultimate Zombie Defense 2

Four soldiers, one crumbling street in Europe, and wave after wave of infected.

$9.99

9-Bit Armies: A Bit Too Far

A bright voxel RTS built for co-op friends: team up in the two-player campaign, hold out together in Survival, or fill huge maps with up to 8 armies…

$19.99

ZED ZONE

Scavenge a hostile open world, craft and mod your gear, raise a fortified base and push toward escape, alone or with friends.

$7.19

VEIN

VEIN is a post-apocalyptic survival sandbox for co-op friends who want to share the work of staying alive.

$19.99

Executive Assault 2

Executive Assault 2 mixes base-building strategy with first-person shooting in space.

$24.99

Circle Empires 2

Circle Empires 2 is a fast, colorful RTS where you and your co-op friends expand circle by circle, grabbing resources, raising oddball armies, and…

$12.99

Co-op games like Cepheus Protocol

Cheaper than Cepheus Protocol

Hidden gems like Cepheus Protocol

Newest co-op games like Cepheus Protocol