Top similar games like Cepheus Protocol: Project Fenrir:

Z Ops: Deadzone is an intense FPS where you play as a member of Z Ops, a global organization fighting for humanity's survival after a zombie apocalypse. Battle hordes of zombies infected by the Bane-Z parasite and take part in dangerous raids.

'Queen of Zarkov' is an 'indie-3rd-person-shooter' that combines elements of 'Escape from Tarkov' with zombies. Embark on missions and loot everything you can, while surviving against different types of zombies and other deadly threats. All your Equipment will be lost if you die, so try to survive!

Every corner could hide the dead. Hold your rifle tight, watch your back, and pray your next shot finds the head. Feel the tension rise as you explore a cursed world where every encounter could be your last.

In a Bleak Midwinter is an immersive first and third person grounded tactical shooter experience set in a real world inspired conflict, where you will survive alone or with others in the frontlines and experience the horrors of war. Push your limits, your glory awaits!

Rotfront is a fast paced & gory FPS set out in the state of Washington in the year 2034. Infiltrate as a lone Operator, purge infected areas, kill as many Rots as possible and unlock weapons and gear as you level up, growing stronger every mission.

Defend and Clean Mr. Wong’s suburban supermarket. By day shoppers will come shop but they leave a mess! And by night the hungry "Zombies" come for their revenge. As his trusted Agent that was hired for this job, it’s up to you to protect the store and your own skin!

A fast, close-quarters multiplayer FPS in the classic arena tradition. Build your class, chain kills into scorestreaks and fight across Team Deathmatch, Search & Destroy, Domination, Hardpoint and more. Survive endless waves in Survival, or hold the line in Zombies.

Beautiful Light, a PvPvPvE tactical first-person extraction shooter where 6 squads of 3 operators are tasked with entering, securing, and extracting an artifact in a hostile, horrific environment. Face other operators and player-controlled anomalies, but beware: mistakes can risk your life and gear.

Enter the fray in an intense, fast paced first person shooter experience. Kill using firearms, explosives, drones, and air support. Dominate maps in deathmatch, team, and PVE. Win with tactics - or sheer brutality. Remember: Hundred kills. One arena. Zero rules. May the best player win!

Broken War is an intense first-person shooter that combines different multiplayer modes.

Variant 22 is a survival game set in a procedural roguelike post American wasteland. Singleplayer or Multiplayer Coop, Scavenge loot from contaminated areas then base build back in the "safe zone" against endless hordes of the infected.

Best Offline Shooter and Sniper Game. Warning it's addictive

Join the corps! Umbrella Corps brings a competitive experience featuring new types of strategy and technique blended with elements from the world of Resident Evil, to create a unique kind of shooter!

Endless waves. Endless zombies. Team up in this co-op survival shooter: grab new guns, upgrade the ones you already have, and unlock even deadlier firepower. The horde grows every round, make sure your last stand counts.

It's an action shooting game that combines the elements of survival and action RPG, Weapons are enhanced with different parts, skills are upgraded to remove SCP. It deals with the unique SCP of the SCP world view, and enjoy casual survival and combat.

How will you live in a chaotic world? I have to explore outside anyway

Death Harvest is a gritty, cooperative VR survival shooter set in a post-apocalyptic world full of zombies. As a survivor of Boston’s combat unit “The Reapers”, you are all that stands between colony survival and collapse.

Dead Rush is an FPS arcade shooter that combines fast-paced action, stylized visuals, and relentless waves of zombies. Choose your weapon, fight with friends, and see how long you can survive.

A wave based arcade shooter with different elements from other genres like hero shooters and incremental games. Fight waves of enemies to earn money to get better gear and upgrades to help you the next time you go to fight them.

Test your survival skills in this third person shooter. Defend your base against a never ending zombie horde. How long will you survive?

You will find yourselves in an apocalyptic world full of enemies, which was created after an unsuccessful fight against a contagion that changed mankind out of all recognition. The streets are full of walking zombies that are hungry for your blood only. You have only one choice - TO SURVIVE!

Cold Sweat is a PvE single player extraction shooter set in a post-apocalyptic world. Collect loot, complete missions for traders, upgrade your base, customize your firearms, and shoot your way through other survivors and the undead.

This is a single-player third-person shooter about the zombie virus outbreak in the future world, as the last survivor and the last resistance of the zombies!

Task Force: ThunderStrom is a fast-paced, hardcore FPS game that delivers a pure and exhilarating shooting experience. The game offers a variety of core gameplay options for players, so whether you are a PVP master or a PVE enthusiast, you can find your own battlefield.

Survive the chaos of the Greek Macedonian Front in a brutal WW1 first-person shooter. Hold the line against overwhelming assaults, manage dwindling resources, and fight to stay alive. Death is permanent. One life. One soldier. One chance.

Experience a visceral Campaign or assemble your team in the ultimate online playground with multiple Special Ops challenges and a mix of Multiplayer maps and modes.

Fight off endless waves of zombies and monsters in Horde Together, a co-op survival game built for action and chaos. Team up, scavenge for gear, and see how long you can survive the apocalypse.

In this round based shooter you must survive waves of zombies as you navigate the environment locating the power, perks, and discoveries someone is trying to cover up. In the multiple maps the game brings you can travel through time and unravel how deep the experiments of zombies goes.

Scav is a low poly looter shooter with survival elements. Gear up in the safezone, drop into quarantine zones, scavenge valuable loot, fight enemies and zombies, and extract before the nuke hits. Survive the raid or lose everything.

The Island Rescue is an open world adventure game for survival in the end of the world. The story takes place on an island called Conavika in the South Pacific Ocean. Use all kinds of weapons to fight zombies and mercenaries, save and help virus experts.