- #1 Dirty Room
97% matchMixed63% of 51 reviews2023
Dev: Tactic Forge
Windows
First person shooter horror adventure game. As detective C, you arrived at an old friend's home and try to find out what's going on.
Why similar: RPG 19.3%, FPS 16.7%, Zombies 15.3%, Shooter 11.4%, Adventure 8.7%
- #2 Code:29
96% matchMixed46% of 13 reviews2022
Dev: chaos
Windows
This is a post-apocalyptic zombie shooter game. You can switch between first person and third person. Multiple bosses, multiple choices, multiple endings.
Why similar: 3D Platformer 17.1%, FPS 14.5%, RPG 14.3%, Shooter 12.9%, Zombies 10.4%
- #3 Boundless world
96% matchNo user reviews2026
Dev: satdaydayup
Windows
Enter the vast forest of Boundless World , no traditional map boundaries, procedural random details/buildings make battles variable; battlefield has differentiated destruction (explodable procedural buildings as key variables); agile AI feels like real players, single-player has multiplayer tension.
Why similar: RPG 20.3%, Shooter 18.6%, 3D Platformer 13.6%, Adventure 13.4%, FPS 11.4%
- #4 Andromeda Zombies Colonies
95% matchMixed53% of 58 reviews2021
Dev: Yann GEFFROTIN
Windows
Andromeda Zombies Colonies is an First Person Shooter video game featuring zombies. You awaken near a station on a red planet but an experiment turn wrong and now, hostile aliens have invaded the colonies, and they target you. You must survive using the weapons at your disposal.
Why similar: RPG 24.3%, FPS 17.1%, Shooter 15.4%, Zombies 12.1%, Adventure 10%
- #5 Across Killzone
94% match5 user reviews40% of 5 reviews2021
Dev: Nacro9 Game
Windows
Nacro9 game studio My first effort Offer
Why similar: FPS 18.8%, Shooter 16.8%, Zombies 13%, Adventure 10.7%, Realistic 10.7%
- #6 Andromeda One Zombies
94% matchMixed44% of 70 reviews2020
Dev: Yann GEFFROTIN
Windows
Andromeda One Zombies is an First Person Shooter video game featuring zombies. The game take place in the far future where spatial exploration of galaxy is possible. A virus has spread and now zombies are rampant. The hero is in the military and try to bring order in the Andromeda galaxy.
Why similar: FPS 22.1%, Zombies 16.6%, Shooter 14.7%, Military 11%, RPG 7.7%
- #7 Prairie survival
93% match9 user reviews11% of 9 reviews2020
Dev: REFLEX
Windows
This is a first person shooting game,The player plays a special soldier,The players are surrounded by enemies,Players are free to explore the surrounding area,Players can kill enemies or avoid enemy attacks,Live as long as you can,After killing the enemy, you can pick up the enemy's weapons.
Why similar: RPG 26.6%, Adventure 17.7%, 3D Platformer 15.6%, Shooter 14.8%, FPS 14%
- #8 The Ghost Treasure
91% matchVery Positive96% of 96 reviews2024
Dev: 谭浩翔
Windows
Use your soul as a stake to gamble for a treasure of the undead captain. As long as you take the randomly distributed flintlock gun and fight a duel with the ghost pirates, you can leave with the treasure, or your soul will remain on the undead ship forever. Good luck.
Why similar: RPG 23%, Shooter 16.8%, 3D Platformer 13.2%, Zombies 12.9%, FPS 7.4%
- #9 Forbidden place
92% match5 user reviews20% of 5 reviews2021
Dev: Coke Cat Studio
Windows
A zombie virus appeared in the spacecraft. Please collect the materials in the spacecraft and try to escape.
Why similar: FPS 22.6%, Shooter 20.3%, Zombies 17.4%, Adventure 13.1%, Gore 9.6%
- #10 Kosta Projekt
91% matchPositive96% of 25 reviews2021
Dev: Dawid Tomanek
Windows
-------The English version is now available ! :) ------
Why similar: RPG 24.1%, Shooter 16.2%, FPS 15.4%, Adventure 14.5%, Zombies 9.6%
- #11 Z Mutants
90% matchMixed60% of 10 reviews2021
Dev: Bullet Brain
Windows
Something is happening in town. People are going crazy attacking each other. Can you survive to find out what's causing this insanity? Who's behind this zombie outbreak?
Why similar: FPS 19.3%, Adventure 14.8%, Military 10.6%, Zombies 10%, Realistic 8.9%
- #12 Day of Invasion: Reloaded
89% match7 user reviews88% of 8 reviews2024
Dev: ReHoGa Interactive
Windows
Day of Invasion: Reloaded is a First Person Zombie-Shooter that takes place within the Horton-Genetics Disaster of Milespring. Find Weapons to fight your way through hordes of Infected!
Why similar: FPS 20.8%, Shooter 19.1%, Adventure 17.8%, Zombies 11.6%, Gore 7.4%
- #13 Zombie Hunter
89% matchMixed42% of 12 reviews2025
Dev: 辰极龙啸Pub: NIE AIRONG
Windows
In an apocalyptic world full of dangers, the only thing you can trust is the weapon in your hand. Survival must be earned by yourself.
Why similar: FPS 21.9%, RPG 21.8%, Shooter 20.3%, Zombies 14%, Gore 9%
- #14 捍卫SafeGuard
88% match9 user reviews56% of 9 reviews2022
Dev: Sat.Ind
Windows
This game is a first person shooting game, players could choose different characters to join match, cooperate to occupy the stronghold.
Why similar: RPG 29.8%, FPS 21%, Shooter 18.7%, Military 14%, First-Person 7%
- #15 Open Fire: Ready
86% match2 user reviews50% of 2 reviews2026
Dev: GHOST
Windows
This is a very simple first-person shooter game that you can fight enemies in various game modes and maps, experiencing the thrill of shooting.
Why similar: FPS 24.3%, Shooter 16.4%, Military 15.6%, Zombies 12.2%, Gore 11.6%
- #16 Andromeda 2 Zombies
87% matchMixed53% of 53 reviews2021
Dev: Yann GEFFROTIN
Windows
Andromeda 2 Zombies is an First Person Shooter video game featuring zombies. The game take place in the far future where spatial exploration of galaxy is possible. A virus has spread and now zombies are rampant. The hero is in the military and try to bring order in the Andromeda galaxy.
Why similar: RPG 24.5%, Shooter 16.5%, FPS 14%, Zombies 12.2%, Realistic 7.9%
- #17 The Undead
86% match1 user reviews100% of 1 reviews2021
Dev: Jordan Pacheco
Windows
The Undead is a first-person shooter that takes place in a cemetery. You must fight waves of zombies and skeletons. When you reach 30 kills you'll be confronted against a fearsome foe.
Why similar: FPS 20.8%, Shooter 18.7%, Adventure 16.8%, Zombies 12.8%, Gore 8.2%
- #18 Gray space
85% matchNo user reviews2027
Dev: WHM
Windows
A level-based game blending action, adventure and role-playing. Set in a crime city, players (from police academy) infiltrate enemies for intel, hide actions, earn stars to upgrade, and write undercover legends.
Why similar: 3D Platformer 24.2%, Adventure 19.3%, Zombies 17.1%, RPG 10.7%, Gore 8.6%
- #19 Dungeon Gore: Lost Treasury
84% matchNo user reviews2024
Dev: JJTW Games
Windows · Linux
Dungeon Gore is a Strategy & Stealth game where you explore the dungeon and collect enough ancient treasure and escape with your findings.
Why similar: FPS 21.5%, Shooter 19.6%, Adventure 18%, Realistic 9.8%, First-Person 7.3%
- #20 Vacant Planet
84% match9 user reviews44% of 9 reviews2022
Dev: Divine Light Games
Windows
You awaken on an unknown planet that has been devastated by a virus of some kind. Scavenge gear and get ready for a battle of survival. Do anything you can to live and find out the secret behind the tragedy of your new home. and find out what's wrong with it.
Why similar: FPS 19.7%, Shooter 18%, Adventure 15.8%, Zombies 12.8%, Realistic 9.3%
- #21 Nocturnal Terror
83% matchNo user reviews
Dev: Whaabek
Windows
Nocturnal Terror is a first-person survival horror experience where survival depends on what you cling to and what you let decay. Explore a world consumed by creeping corruption, manage scarce resources, and face the unknown beneath the palace.
Why similar: RPG 21.4%, FPS 19.1%, Shooter 15.1%, Survival Horror 12.5%, Adventure 7.9%
- #22 F20 Eclipse
82% matchNo user reviews
Dev: Red Viburnum Studio
Windows
F20 is a story-driven single-player FPS in the genre of psychological combat survival horror. Set during WWI on the battlefields of northern France, you play as a British soldier fighting to survive brutal war horrors, mysterious events, and sinister creatures.
Why similar: RPG 29.1%, FPS 19.3%, Shooter 17.9%, Adventure 17.6%, First-Person 6.3%
- #23 Dark Era
82% matchNo user reviews2024
Dev: Red Panda Games
Windows
A Game set in post-apocalyptic world where an alien virus has taken over, kill the infected ones ,Survive their attacks , clear the levels to complete the game. There are currently two game modes one is level based and another is Arcade mode.
Why similar: FPS 20.1%, Shooter 18.6%, Adventure 12.4%, Zombies 9.9%, Gore 8.2%
- #24 Operation Dimera
81% match8 user reviews50% of 8 reviews2025
Dev: SupKai
Windows
Operation Dimera is a co-op game for up to 3 players where you and your friends must save the world. Tackle diverse missions. Work together to solve puzzles that stand in your way and customize your weapons to be ready for anything! The fate of the world is in your hands!
Why similar: FPS 14.1%, Shooter 12.3%, Zombies 11.8%, Military 11.4%, Thriller 8.3%
- #25 残存之物 Remnants
81% matchNo user reviews
Dev: Storm101
Windows
This is a survival-focused game currently in an early stage of development. The project is primarily developed as a personal work, showcasing core gameplay systems and iterative progress. Content and features are subject to change and may be expanded over time.
Why similar: FPS 27.4%, Shooter 20.1%, Zombies 17.4%, First-Person 8.8%, Gore 8.4%
- #26 CARDS GUNS ZOMBIES
80% matchNo user reviews
Dev: Art Games Studio S.A.Pub: Art Games Studio S.A.
Windows
Open packs of CARDS to arm yourself with various equipment, abilities, and the best GUNS on the market, then slay hordes of ZOMBIES!
Why similar: FPS 23.9%, Zombies 19.7%, Shooter 18.9%, Violent 11%, Gore 10.9%
- #27 Death Report
79% matchNo user reviews
Dev: Uncle Coward
Windows
This is a horror game that will take you into a world full of suspense, thrills, and psychological challenges, testing your courage and wisdom, uncovering secrets that have been sealed by time. -Pure manual map, without using automatically generated maps -Pure manual system, easy to adjust
Why similar: Shooter 19.6%, Adventure 19.4%, FPS 16.3%, Horror 10.8%, Gore 10%
- #28 Maze Nightmare-Edge of Darkness
79% matchNo user reviews2026
Dev: BlackFog Studio
Windows
《Maze Nightmare-Edge of Darkness》 is a first-person survival game. Trapped in a foggy, procedural maze, use limited ammo and faint breath sounds to locate the key-carrying zombie, find the key, and escape—or be lost forever.
Why similar: RPG 22.9%, 3D Platformer 16.3%, Shooter 14.1%, FPS 11.6%, Zombies 7.7%
- #29 Dual Gun
78% match1 user reviews100% of 1 reviews2024
Dev: Rocket Game
Windows
《Dual Gun》is a survival horror first-person shooter game,set in a world infested with various mutated creatures. You are a member of the military skilled with dual pistols. You are dropped into these locations, and your mission is simple: survive long enough to clear out the mutated beings!
Why similar: FPS 21.2%, Zombies 18%, 3D Platformer 14.3%, Shooter 13.7%, Military 9.5%
- #30 Fast Mission
78% match3 user reviews100% of 3 reviews2025
Dev: yonorof
Windows
A collection of indie games with simple mechanics and arcade-style gameplay.
Why similar: FPS 22.5%, Zombies 17.7%, Survival Horror 8.5%, Thriller 8.4%, Shooter 8%
- #31 Backrooms Bodycam 2
77% matchMixed55% of 11 reviews2025
Dev: Pine Games
Windows
Enter the Mysterious World of the Backrooms! Find weapons left behind by other wanderers, fight off dangerous entities, and make your way to the exit!
Why similar: FPS 20.9%, RPG 17.5%, Realistic 12.8%, Shooter 12.3%, Survival Horror 10.3%
- #32 The Quelling
77% matchNo user reviews2026
Dev: Thomas GalliersPub: Thomas Rossiter
Windows
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.
Why similar: FPS 20.4%, Shooter 18.5%, Military 12.5%, Realistic 9.5%, Zombies 7.7%
- #33 FIRESTORM DEADLAND
76% matchNo user reviews
Dev: Kai J. FosterPub: Steam
Windows
FIRESTORM DEADLAND is a first-person shooter survival horror game where you have to survive as much time as you can by defending the world against unHumans and unknown species in the year 2063.
Why similar: Zombies 22%, FPS 18.6%, Military 16.7%, Survival Horror 10.8%, Shooter 9.3%
- #34 OOTY : Silence Remains
75% matchNo user reviews
Dev: Inzeros
Windows
Four friends travel to a remote, abandoned palace hidden deep in the misty hills, searching for thrills. What starts as an adventure turns into a nightmare when darkness falls. Play as one of them, alone and hunted, and uncover the hill’s secrets to survive the night.
Why similar: FPS 22%, Adventure 18.2%, Realistic 10.1%, Thriller 9.2%, First-Person 7.5%
- #35 From The Grave
76% matchMixed53% of 32 reviews2020
Dev: Esteban Jauregui
Windows
Zombie Survival Game
Why similar: FPS 24%, Shooter 16.2%, Zombies 11.3%, Survival Horror 11.1%, Military 9.7%
- #36 The Nightmare of Pandemic - Kyle's Story
74% match1 user reviews100% of 1 reviews2025
Dev: LEMIOUTGAMESPub: Jacob Jufeili
Windows
Kyle wakes with a headache unaware he has survived a helicopter crash in Nannestak Norway. Alone on a farm he suddenly finds himself in a space suit. A flash of light transports him back to a mission he must complete. As he progresses he experiences flashbacks uncovering pieces of his lost memory,
Why similar: FPS 22.3%, Shooter 20.7%, Zombies 17.6%, Adventure 10.1%, Gore 9.6%
- #37 Infested
75% matchNo user reviews2026
Dev: UHGDEV
Windows
Infested is a simple First Person Shooter. You will encounter many zombies as you fight your way through the zombie-infested city. Will you make it to the hospital to find the first infected victim? Only with its DNA samples will science be able to create an antidote.
Why similar: FPS 21.8%, Zombies 19.4%, Shooter 11.6%, Gore 10.6%, Violent 8.8%
- #38 Oops! Zombie Swarm
74% match8 user reviews88% of 8 reviews2024
Dev: Hugo
Windows · Mac
An unknown virus has turned most people into zombies. In this disaster, you unexpectedly discover a mysterious dragon egg, which seems to grant you immunity to the virus. Now, your mission is to protect this precious dragon egg and ensure it is not destroyed by hordes of zombies.
Why similar: FPS 28%, Zombies 23.4%, Shooter 16%, Adventure 10.6%, Gore 8.2%
- #39 Witching Hour
73% matchMostly Positive81% of 14 reviews2023
Dev: MythicPenguin
Windows
Witching Hour is a zombie wave shooter where you have to survive until the clock strikes 12. You are trapped inside the house while hordes of zombies attack you from every angle. Can YOU survive until witching hour?
Why similar: FPS 27%, Shooter 20.1%, Zombies 14.3%, First-Person 8.2%, Horror 7.6%
- #40 Mad Murder's Mystery Pie Shop
73% matchPositive92% of 13 reviews2022
Dev: Bry Guy StudiosPub: Bry Guy Studios
Windows
FPS game involving finding ingredients and throwing them in the oven. Then bringing cooked pies to customers of Mad Murders Pie shop.
Why similar: FPS 22.3%, Shooter 20.6%, Adventure 19.3%, Gore 9.6%, Violent 8.7%
- #41 Menticide
72% match7 user reviews86% of 7 reviews2024
Dev: Continuum Studios
Windows
Menticide is a survival horror game that takes you through chilling investigations. As a special forces operative, you'll delve into routine missions that unravel into terrifying mysteries. Dark secrets await beneath the surface. Will you survive long enough to uncover the truth?
Why similar: FPS 27.1%, Shooter 20.2%, First-Person 8.9%, Realistic 8.5%, Gore 8%
- #42 Castle of Deceit
73% matchNo user reviews
Dev: yycStudio
Windows
Castle of Deceit is a first-person shooting battle game that takes place on an alien planet. You will play the leading role in finding the weak truth in the quagmire of lies and make your decision to find your lover.
Why similar: RPG 26%, FPS 24.2%, Adventure 11.1%, Shooter 9.9%, 3D Platformer 9.2%
- #43 Undead Exile
71% match9 user reviews56% of 9 reviews2025
Dev: ValarFerys
Windows
This post-apocalyptic FPS is perfect for players who dislike PvP, complex stories, or navigating endless mazes. Just grab your weapon and shoot away, enjoying pure, simple shooting fun. Both characters and weapons can be upgraded and customized.
Why similar: RPG 26.5%, FPS 21.8%, Shooter 20%, Zombies 17.8%, First-Person 5.6%
- #44 The Gauntlet
71% match6 user reviews86% of 7 reviews2024
Dev: Ygensoft
Windows
In The Gauntlet, you'll need to move fast and control your every move. Various obstacles stand in your way, and it's up to you to find the best way to get through them, taking advantage of your moves and your unique weapon that lets you freeze objects in place.
Why similar: 3D Platformer 29%, FPS 28.2%, Shooter 18.9%, Adventure 9.3%, First-Person 8%
- #45 Dark Genesis
70% matchPositive100% of 10 reviews2025
Dev: Seoung Jin Kim
Windows
Dark Genesis is a first-person horror shooting game developed using Unreal Engine 5. Through the power of Unreal Engine 5, players can experience realistic visuals and intense battles with terrifying monsters.
Why similar: FPS 24%, Adventure 20.8%, Zombies 14.4%, Gore 9.2%, Violent 8.4%
- #46 Operation: Outbreak
69% matchVery Positive80% of 468 reviews2025
Dev: DREADMITH Games
Windows
Your squad's vehicle exploded during a patrol, and you're the only survivor. The enemy is unusual this time. A virus has turned the city into a warzone of the undead. Get to the exfil in time or die trying. A free-to-play short and intense FPS zombie survival horror game.
Why similar: Zombies 17.4%, FPS 16.3%, Shooter 14.2%, Military 10%, Gore 9.3%
- #47 Horror Adventure : Zombie Edition
71% match2 user reviews0% of 2 reviews2024
Dev: Yash Future Tech Solutions Pvt Ltd
Windows
Horror Adventure : Zombie Edition is a zombie shooter set in a post-apocalyptic world. There has been an outbreak of a mysterious virus killing people and transforming them into zombies.
Why similar: FPS 23.7%, Shooter 21.9%, Adventure 20.5%, Gore 10.2%, Violent 9.7%
- #48 The Damned Office
70% match1 user reviews100% of 1 reviews2024
Dev: BHPG
Windows
The Damned Office - An arcade first-person shooter (FPS) with survival-horror elements. Your task is survive in office building full of zombies. The only weapon you have is an old pistol, so you should use the available resources wisely. Explore the corridors, shoot zombies and just survive!
Why similar: FPS 30.5%, Shooter 22.5%, Zombies 16%, Adventure 13.8%, First-Person 9.1%
- #49 Death Upon Us
72% matchNo user reviews2021
Dev: Julian Lewis
Windows
Death Upon Us, is a game in which you will use your arsenal of guns to pull off cunning, exciting, and adrenaline pumping maneuvers to conquer levels in this game. Watch as your skills take you from killing a small horde of zombies in the School Yard to killing an abundance of zombies in the Temple.
Why similar: FPS 17.7%, Zombies 15.8%, Shooter 15.5%, Realistic 11.1%, Gore 9.4%
- #50 Rise of the Dead
70% matchNo user reviews
Dev: Mark Smith
Windows
Trapped in a collapsing mountain research facility, you play a lone security guard searching for a vaccine as the dead rise around you. Solve puzzles, survive limited resources, and escape by train before everything is destroyed.
Why similar: Zombies 23.6%, Adventure 15.6%, Realistic 15.1%, FPS 13.5%, Horror 11.2%
- #51 Restricted Area B-17
68% match1 user reviews0% of 1 reviews2025
Dev: XMK
Windows
Game of horror, puzzles and shooting: Plunge into an underground hell—caused by uncontrolled illegal human experiments. Once a secret lab, now overrun by mutated zombies. Solve puzzles, shoot, and escape this desperate cage!
Why similar: FPS 23.5%, RPG 21.1%, Shooter 17.4%, Zombies 8.9%, Adventure 8.8%
- #52 白垩纪-龙岛
68% matchNo user reviews
Dev: YTGame
Windows
In the game, you can choose to become a dinosaur, a herbivorous dinosaur, or a carnivorous dinosaur. In this multiplayer ecosystem, you can gradually grow from a young dinosaur baby to a top predator! But please remember, the ancient law of the Cretaceous period was to survive at all costs!
Why similar: RPG 32.5%, 3D Platformer 23.4%, Adventure 20.2%, Gore 9.1%, Violent 8.3%
- #53 Square Head Zombies 2 - FPS Game
69% matchMixed43% of 60 reviews2019
Dev: Sabrina Aridi
Windows
Median: 54 minMean: 6.2 hrs≥1hr: 45%
New zombies need to be defeated in Square Head Zombies 2. Go to new places, find and destroy them all.
Why similar: FPS 20.7%, Shooter 16.5%, Zombies 15.7%, Military 15.4%, Gore 7.6%
- #54 Zombi Efem
67% matchMixed60% of 10 reviews2025
Dev: Spaceandtab Company
Windows
The world has turned to ash, and civilization has collapsed. The chosen savior isn't a soldier, but a Gamer who spent their life behind a screen. Transform an old train into a mobile death machine, deploy turrets, manage your economy, and never stop moving. On these endless rails, to stop is to die
Why similar: Zombies 18.9%, FPS 18.8%, Shooter 15.4%, Survival Horror 11.1%, Realistic 11%
- #55 Nightmare Simulator 2 Rebirth
69% match4 user reviews50% of 4 reviews2020
Dev: INDIEPLAY
Windows
You have lost your memories. You wake up in an unknown town... Try to survive and find the answers you seek on WHO YOU ARE!
Why similar: FPS 28.1%, Zombies 19%, Adventure 13.2%, Gore 12%, Violent 10.5%
- #56 Unidentified
68% match7 user reviews29% of 7 reviews2021
Dev: UnamedPixel
Windows
The government has been attacked by unidentified creatures, and you, as a mercenary, was hired by the government to clear all the threat. An FPS game which you can fight with those cunning creatures regardless of the weather, day and night change. Earn more and more reward to buy better weapons!
Why similar: FPS 27.3%, Shooter 23.7%, Violent 12.7%, Gore 10.9%, First-Person 10%
- #57 KILLGUN
67% matchNo user reviews2026
Dev: Hunt Studio
Windows
KILLGUN - is a ruthless FPS for players who crave pure, aggressive combat, high difficulty, and an atmosphere of constant survival.
Why similar: Zombies 26.4%, FPS 25.2%, Shooter 13.4%, Adventure 9.7%, Military 6.2%
- #58 Infection Warfare
66% match5 user reviews100% of 5 reviews2025
Dev: FlyingWingStudio
Windows
This is a bio infectious shooting game. You will play as a human, resist the attack of infected individuals, wait for the opportunity to become a hero, and kill infected individuals to the point of no return. Or play the role of an infected person, infect humanity, and defeat all heroes.
Why similar: Zombies 20.9%, FPS 19.3%, Shooter 15.3%, RPG 11.1%, Military 10.4%
- #59 MUTATION PHASE
67% matchMixed68% of 40 reviews2018
Dev: IGRODELSKY
Windows
MUTATION PHASE is a horror-shooter with a first-person view, which narrates the consequences of experiments with sound waves. You have to survive among hordes of mutants and get out of the danger zone.
Why similar: FPS 18.2%, Shooter 17.8%, Zombies 15.9%, Gore 13.4%, Realistic 8.4%
- #60 T-深渊病毒:起源
66% matchNo user reviews
Dev: 魏泽腾
Windows
This game is a first person shooting game with a zombie theme, integrating elements such as first person shooting and fighting zombies. In the game, players are in a world plagued by zombies, collecting gem resources, purchasing attributes, and using weapons to eliminate zombies.
Why similar: FPS 26.6%, Shooter 23.9%, Zombies 21.2%, RPG 12.9%, Adventure 7.4%