Games like Cepheus Protocol on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Cepheus Protocol are available at the bottom of the page.
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Project Zomboid
Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite..
ZED ZONE
A great catastrophe has come, and you, who are on duty, crash and trapped in a Zed Zone. There are zombies and monsters everywhere, In order to escape, by collecting materials, upgrading skills, building shelters, defeating zombie waves and mysterious mechs, chasing a glimmer of hope.
Kenshi
A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors.
Delivery from the Pain:Survival / 末日方舟:生存
You'll play as a survivor in a world overrun by zombies. Explore and interact with other survivors, making tough choices about whether to help or exploit them. Defend against zombies, collect resources, craft, and fortify your shelter. Use strategy to escape this world and return to safety.
SurrounDead
SurrounDead is an open world survival game. Taking place in a world ravaged by an apocalyptic catastrophe. The dead reign free and will stop at nothing to kill you.
Survivalist
It's one year after the collapse of civilization and self-centered hedge fund manager Joe Wheeler emerges from his specially constructed bunker in search of food. This is a huge open-world RPG where you have the freedom to play how you want - but your choices have consequences.
7 Days to Die
7 Days to Die is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits!
They Are Billions
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
Dread Dawn
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.
Darfall
Darfall is a hero-based RPG city-building game that puts you in the role of a hero who must protect their home and help it grow! During the day, grow your hero’s might, find epic loot, master new abilities, and fortify your settlement. At night, survive the hordes of undead, until you triumph.
Bridge Constructor: The Walking Dead
Bridge Constructor: The Walking Dead combines the legendary and challenging puzzle gameplay of Bridge Constructor™ with the post-apocalyptic zombie universe of AMC’s The Walking Dead.
Days Gone
Ride and fight into a deadly, post pandemic America. Play as Deacon St. John, a drifter and bounty hunter who rides the broken road, fighting to survive while searching for a reason to live in this open-world action-adventure game.
The Escapists: The Walking Dead
Merging the smash hit indie game The Escapists with the world wide phenomenon that is The Walking Dead, Team17 have taken the very best of both worlds and are now providing players with the opportunity to play Rick Grimes as he takes on hordes of zombies let loose upon the world.
Castle Story
Castle Story is a creative voxel-based strategy game in which you can build castles one brick at a time using an army of little creatures called Bricktrons. Design and build your own castles, expand your territory in a vast landscape and defend your Bricktrons against onslaughts of hostile creatures.
Mist Survival
MIST SURVIVAL is a Single-player, survival stealth sandbox game Players will experience the Apocalypse stimulation in the form of virus pandemic, the players have to deal with it to survive through the difficulties such as finding shelter and food, threats from the environment and climate: wild animals, bandits, infected, and dense mist t
No One Survived
This is a multiplayer cooperative open world construction survival sandbox game, where you and your friends must find supplies and build shelters in this world. You have to keep an eye on your character's needs state at all times, a bad state is likely to lead to death.
State of Decay: YOSE
Make your stand against the collapse of society in the ultimate zombie survival-fantasy game. Explore an open world full of dangers and opportunities that respond to your every decision. Recruit a community of playable survivors, each with their own unique skills and talents.
Dead State: Reanimated
Dead State is a narrative-driven survival RPG set at the dawn of the undead apocalypse. Drawing inspiration from classic RPGs like Fallout, X-Com, and Suikoden, Dead State combines strategic, turn-based combat with base building mechanics, character creation, and social management.
Endzone - A World Apart
Endzone is a post-apocalyptic survival city builder, where you start a new civilization with a group of people after an ecological disaster. Build them a new home and ensure their survival in a shattered world, threatened by constant radiation, toxic rain, sandstorms and droughts.
HumanitZ
HumanitZ is a co-op, isometric, open world survival game in a world ended by the zombie outbreak. As one of the few human survivors, try to last as long as “humanly” possible. The past can’t be changed, but you can make a difference today for the future of humanity.
The Wandering Village
The Wandering Village is a city-building simulation game on the back of a giant, wandering creature. Build your settlement and form a symbiotic relationship with the colossus. Will you survive together in this hostile, yet beautiful post-apocalyptic world, contaminated by poisonous plants?
State of Decay 2: Juggernaut Edition
The dead have risen and civilization has fallen. Now it's up to you to gather survivors, scavenge for resources and build a community in a post-apocalyptic world – a world where you define what it means to survive in this ultimate zombie survival simulation.
The Matchless Kungfu
The Matchless Kungfu is an open world sandbox RPG game based on a WuXia background. You can play any martial arts role you imagine in this wild world. Travel through the great wilderness, or be the leader of the group. The most important thing is, build your own story and live the experience!
Most played games like Cepheus Protocol on Steam
Take a look at the top games like Cepheus Protocol that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.
1. DayZ
Similarity 47% How long can you survive a post-apocalyptic world? A land overrun with an infected "zombie" population, where you compete with other survivors for limited resources. Will you team up with strangers and stay strong together? Or play as a lone wolf to avoid betrayal? This is DayZ – this is your story. DayZ is a survival, open world and online co-op game developed and published by Bohemia Interactive. Released on December 13th 2018 has received 430,252 reviews of which 330,349 were positive and 99,903 were negative resulting in a rating of 7.6 out of 10. The game has hit the top spot as the #1 most played game like Cepheus Protocol, thanks to its 46,727 peak concurrent players over the last day.
7.6
330,349
99,903
46,727
players
2. RimWorld
Similarity 47% A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more. RimWorld is a colony sim, base-building and survival game developed and published by Ludeon Studios. Released on October 17th 2018 has received 210,517 reviews of which 206,216 were positive and 4,301 were negative resulting in an impressive rating of 9.7 out of 10. While seeing 27,800 players online at once in the last 24 hours, this game is currently ranked #2 among games like Cepheus Protocol based on player count.
9.7
206,216
4,301
27,800
players
3. Project Zomboid
Similarity 64% Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite.. Project Zomboid is a survival, zombies and open world game developed and published by The Indie Stone. Released on November 08th 2013 has received 377,063 reviews of which 355,171 were positive and 21,892 were negative resulting in an impressive rating of 9.3 out of 10. While seeing 27,195 players online at once in the last 24 hours, this game is currently ranked #3 among games like Cepheus Protocol based on player count.
9.3
355,171
21,892
27,195
players
4. 7 Days to Die
Similarity 57% 7 Days to Die is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits! 7 Days to Die is a survival, zombies and multiplayer game developed by The Fun Pimps and published by The Fun Pimps Entertainment LLC. Released on July 25th 2024 has received 370,046 reviews of which 327,889 were positive and 42,157 were negative resulting in a rating of 8.8 out of 10. With 23,106 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Cepheus Protocol.
8.8
327,889
42,157
23,106
players
5. Terraria
Similarity 40% Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available! Terraria is a open world survival craft, sandbox and survival game developed and published by Re-Logic. Released on May 16th 2011 has received 1,409,473 reviews of which 1,373,979 were positive and 35,494 were negative resulting in an impressive rating of 9.7 out of 10. With 22,766 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Cepheus Protocol.
9.7
1,373,979
35,494
22,766
players
6. Unturned
Similarity 51% You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living. Unturned is a free to play, survival and zombies game developed and published by Smartly Dressed Games. Released on July 07th 2017 has received 555,368 reviews of which 506,516 were positive and 48,852 were negative resulting in an impressive rating of 9.0 out of 10. With 10,810 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Cepheus Protocol.
9.0
506,516
48,852
10,810
players
7. Dying Light 2 Stay Human: Reloaded Edition
Similarity 40% Humanity is fighting a losing battle against the virus. Experience a post-apocalyptic open world overrun by hordes of zombies, where your parkour and combat skills are key to survival. Traverse the City freely during the day, but watch the monsters take over during the night. Dying Light 2 Stay Human: Reloaded Edition is a open world, co-op and zombies game developed and published by Techland. Released on February 03rd 2022 has received 194,830 reviews of which 154,122 were positive and 40,708 were negative resulting in a rating of 7.8 out of 10. With 7,042 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Cepheus Protocol.
7.8
154,122
40,708
7,042
players
8. Conan Exiles
Similarity 42% An online multiplayer survival game, now with sorcery, set in the lands of Conan the Barbarian. Survive in a vast open world sandbox, build your home into a kingdom, and dominate your enemies in single or multiplayer. Conan Exiles is a survival and open world game developed and published by Funcom. Released on May 08th 2018 has received 107,465 reviews of which 84,575 were positive and 22,890 were negative resulting in a rating of 7.8 out of 10. With 6,562 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Cepheus Protocol.
7.8
84,575
22,890
6,562
players
9. Kenshi
Similarity 63% A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors. Kenshi is a open world, sandbox and rpg game developed and published by Lo-Fi Games. Released on December 06th 2018 has received 98,135 reviews of which 93,712 were positive and 4,423 were negative resulting in an impressive rating of 9.4 out of 10. With 6,089 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Cepheus Protocol.
9.4
93,712
4,423
6,089
players
10. Space Engineers
Similarity 41% Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive. Space Engineers is a space, sandbox and building game developed and published by Keen Software House. Released on February 28th 2019 has received 132,347 reviews of which 117,204 were positive and 15,143 were negative resulting in a rating of 8.8 out of 10. With 5,146 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Cepheus Protocol.
8.8
117,204
15,143
5,146
players
Best deals on games like Cepheus Protocol on Steam
Discover fantastic savings with the best discounts on a variety of games like Cepheus Protocol available on Steam right now, updated on June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Cepheus Protocol.
1. Dead Age
Similarity 48% Survive the zombie apocalypse with a “Final Fantasy” turn-based combat and permanent death! Manage survivors, craft materials, and make difficult decisions. Defend your camp against hordes of the undead to prevail in this non-linear rogue-lite (comparable to FTL). Innovative Indie Survival-RPG! Dead Age is a rpg, zombies and strategy game developed by Silent Dreams and published by Headup. Released on November 04th 2016 has received 5,475 reviews of which 4,467 were positive and 1,008 were negative resulting in a rating of 7.9 out of 10. Featuring a massive 98% discount, this game currently holds the #1 spot in the best deals for games like Cepheus Protocol.
7.9
4,467
1,008
-98%
14.99€
0.38€
2. Cartel Tycoon
Similarity 43% Cartel Tycoon is a survival business sim inspired by the ‘80s and '90s narco trade. Expand and conquer, fight off rival thugs and evade the authorities. Earn people's loyalty and strive to overcome the doomed fate of a power-hungry drug lord. Cartel Tycoon is a top-down, rts and resource management game developed by Moon Moose and published by tinyBuild. Released on July 26th 2022 has received 3,536 reviews of which 2,699 were positive and 837 were negative resulting in a rating of 7.4 out of 10. Thanks to its incredible 98% discount, this game is now the #2 best deal in games like Cepheus Protocol.
7.4
2,699
837
-98%
28.99€
0.73€
3. Frostpunk
Similarity 40% Frostpunk is the first society survival game. As the ruler of the last city on Earth, it is your duty to manage both its citizens and infrastructure. What decisions will you make to ensure your society's survival? What will you do when pushed to breaking point? Who will you become in the process? Frostpunk is a city builder, survival and resource management game developed and published by 11 bit studios. Released on April 24th 2018 has received 123,546 reviews of which 114,315 were positive and 9,231 were negative resulting in an impressive rating of 9.1 out of 10. Thanks to its incredible 97% discount, this game is now the #3 best deal in games like Cepheus Protocol.
9.1
114,315
9,231
-97%
29.99€
0.92€
4. Bridge Constructor: The Walking Dead
Similarity 55% Bridge Constructor: The Walking Dead combines the legendary and challenging puzzle gameplay of Bridge Constructor™ with the post-apocalyptic zombie universe of AMC’s The Walking Dead. Bridge Constructor: The Walking Dead is a simulation, zombies and post-apocalyptic game developed by ClockStone and published by Headup. Released on November 19th 2020 has received 300 reviews of which 223 were positive and 77 were negative resulting in a rating of 7 out of 10. Currently offered at a significant 97% discount, this title has earned the #4 position in the best deals for games like Cepheus Protocol.
7
223
77
-97%
9.99€
0.37€
5. Surviving the Aftermath
Similarity 42% Survive and thrive in a post-apocalyptic future — resources are scarce, but opportunity calls! Build the ultimate disaster proof colony, protect your colonists, and restore civilization to a devastated world. Surviving the Aftermath is a strategy, simulation and city builder game developed by Iceflake Studios and published by Paradox Interactive. Released on November 16th 2021 has received 4,363 reviews of which 3,084 were positive and 1,279 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 97% discount, this title has earned the #5 position in the best deals for games like Cepheus Protocol.
6.9
3,084
1,279
-97%
29.99€
0.90€
6. Earth 2140
Similarity 44% The year is 2140. After numerous wars and several environmental disasters, only two world powers remain; the United Civilized States (»UCS«), covering the American continent, Western Europe and North Africa, and the Eurasian Dynasty (»ED«) covering the coherent landmasses of Eastern Europe and Asia. Earth 2140 is a strategy, rts and singleplayer game developed by Reality Pump Studios and published by TopWare Interactive ACE and ACE. Released on November 15th 2013 has received 562 reviews of which 353 were positive and 209 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 97% discount, this title has earned the #6 position in the best deals for games like Cepheus Protocol.
6.1
353
209
-97%
6.89€
0.21€
7. Dead Island Definitive Edition
Similarity 42% Welcome to the zombie apocalypse experience of a lifetime – and now more beautiful than ever. Caught in the midst of an epic zombie outbreak on the tropical island of Banoi, your only thought is: Survive! Dead Island Definitive Edition is a zombies, open world and co-op game developed by Techland and published by Deep Silver. Released on May 31st 2016 has received 25,527 reviews of which 20,934 were positive and 4,593 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 96% discount, this title has earned the #7 position in the best deals for games like Cepheus Protocol.
8.1
20,934
4,593
-96%
19.99€
0.89€
8. ATOM RPG Trudograd
Similarity 41% ATOM RPG: Trudograd is a turn-based post-apocalyptic roleplaying game, which continues the story of ATOM RPG as a stand-alone sequel/expansion, and follows the traditions set by classic cRPGs such as the early Fallout and Wasteland titles. ATOM RPG Trudograd is a crpg, open world and survival game developed and published by AtomTeam. Released on September 13th 2021 has received 4,300 reviews of which 3,540 were positive and 760 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 96% discount, this title has earned the #8 position in the best deals for games like Cepheus Protocol.
8.0
3,540
760
-96%
10.99€
0.53€
9. Drake Hollow
Similarity 50% Build and defend villages of vegetable folk from deadly feral beasts in the blighted world of The Hollow. Explore, gather, and fight! You can even invite your friends. Can you craft the perfect village? Drake Hollow is a open world, survival and adventure game developed by The Molasses Flood and published by CD PROJEKT RED. Released on October 01st 2020 has received 1,726 reviews of which 1,345 were positive and 381 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 96% discount, this title has earned the #9 position in the best deals for games like Cepheus Protocol.
7.5
1,345
381
-96%
24.99€
1.19€
10. Seeds of Resilience
Similarity 41% Ready to start anew? Build a village from scratch in Seeds of Resilience. Learn to choose the right items, understand nature's patterns, use real life-based constructions and craft techniques in this turn-based tycoon game. Seeds of Resilience is a city builder, colony sim and building game developed by Subtle Games and published by Goblinz Publishing and Maple Whispering Limited. Released on June 13th 2019 has received 361 reviews of which 250 were positive and 111 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 96% discount, this title has earned the #10 position in the best deals for games like Cepheus Protocol.
6.6
250
111
-96%
13.99€
0.59€
Free games like Cepheus Protocol on Steam
Check out this fantastic list of free-to-play games like Cepheus Protocol you can enjoy on Steam right now, updated on June 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Cepheus Protocol.
1. Unturned
Similarity 51% You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living. Unturned is a free to play, survival and zombies game developed and published by Smartly Dressed Games. Released on July 07th 2017 has received 555,368 reviews of which 506,516 were positive and 48,852 were negative resulting in an impressive rating of 9.0 out of 10. With 10,810 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Cepheus Protocol.
9.0
506,516
48,852
10,810
players
2. Fallout Shelter
Similarity 40% Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland. Fallout Shelter is a free to play, base-building and survival game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on March 29th 2017 has received 74,448 reviews of which 65,847 were positive and 8,601 were negative resulting in a rating of 8.7 out of 10. Thanks to its free to play tag and a daily player base of 983, this game has secured the #2 spot in the ranking of free games like Cepheus Protocol.
8.7
65,847
8,601
983
players
3. Walking Zombie 2
Similarity 44% Zombie singleplayer shooter in modern polygon graphics with rich RPG elements. Walking Zombie 2 is a fps, zombies and open world survival craft game developed and published by Alda Games. Released on October 11th 2019 has received 12,515 reviews of which 10,981 were positive and 1,534 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #3 spot among the most played free games like Cepheus Protocol.
8.6
10,981
1,534
80
players
4. Dead Maze
Similarity 41% Dead Maze is a 2D MMO game set in a destroyed contemporary world, filled with zombies. Explore the world, scavenge and craft as many items as possible, to survive the hostile environment and upgrade your gear and camp as you go. Dead Maze is a free to play, survival and zombies game developed and published by Atelier 801. Released on February 13th 2018 has received 4,713 reviews of which 3,540 were positive and 1,173 were negative resulting in a rating of 7.3 out of 10. The game currently holds the #4 spot among the most played free games like Cepheus Protocol.
7.3
3,540
1,173
69
players
5. CHKN
Similarity 47% Behold, the miracle of life… packed into cubes! Create fantastic creatures in an open-world sandbox game like no other. Explore, craft, and survive—all with the help of your very own creations. CHKN is a sandbox, adventure and open world game developed and published by Katapult. Released on April 01st 2016 has received 1,655 reviews of which 1,320 were positive and 335 were negative resulting in a rating of 7.7 out of 10. The game currently holds the #5 spot among the most played free games like Cepheus Protocol.
7.7
1,320
335
9
players
6. Yet Another Zombie Defense
Similarity 41% Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can. Yet Another Zombie Defense is a zombies, survival and multiplayer game developed and published by Awesome Games Studio. Released on March 28th 2014 has received 12,053 reviews of which 10,433 were positive and 1,620 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #6 spot among the most played free games like Cepheus Protocol.
8.4
10,433
1,620
8
players
7. Istrolid
Similarity 43% In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers. Istrolid is a free to play, building and strategy game developed and published by treeform. Released on May 06th 2016 has received 2,662 reviews of which 2,325 were positive and 337 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #7 spot among the most played free games like Cepheus Protocol.
8.4
2,325
337
7
players
8. Planet Explorers
Similarity 46% Planet Explorers is an open world sandbox adventure RPG game set on a distant planet. The game uses a new OpenCL calculated voxel system to allow players to change the terrain in any way, create new objects such as weapons, vehicles, objects, and do it anywhere. Planet Explorers is a open world survival craft, sandbox and open world game developed and published by Pathea Games. Released on November 08th 2016 has received 6,812 reviews of which 4,226 were positive and 2,586 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #8 spot among the most played free games like Cepheus Protocol.
6.1
4,226
2,586
5
players
9. Prospector: The First Contract
Similarity 44% As the Prospector in this Prologue chapter, you will be taking on your first contract. Explore new planets, gather resources, build your fully automated base, and ship materials to distant colonies. Prospector: The First Contract is a open world survival craft, sandbox and pixel graphics game developed by Loonworks Games and published by HypeTrain Digital. Released on July 12th 2024 has received 498 reviews of which 458 were positive and 40 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #9 spot among the most played free games like Cepheus Protocol.
8.6
458
40