Top similar games like Origin of Decay:
Origin of Decay FREE
All disasters began with earthquakes.The nuclear power plant got damaged by the earthquake. The power plant became uncontrollable, and a large amount of radioactive material was exposed in the atmosphere, killing millions of people.
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Zombie City Defense 2$9.99
In a near future, the world has been devastated by a virus turning humanity into zombies. You are Iron Corps, the last defense of civilization traveling the world to find resources, help people and find answers. Will you survive long enough?
Heroes of Issachar$19.99
Heroes of Issachar is a city-builder / FPS hybrid. This game takes everything you love about classic city-builders and puts a crossbow in your hand to defend the kingdom you have built and extinguish the enemy from the land by raising up an army and recruiting other heroes to join the fight.
Horror Tycoon$14.99
Scare, terrify and thrill guests as you build the haunted house of your nightmares. Design and customize your creations with incredible detail to scare your guests, or risk losing it all in this tower defense/management/tycoon hybrid.
Hope Despair ChaosFREE
A new real time social deduction game, each players starts with a public Talent ( skill ) and a hidden independent Faction (winning condition), real time lightning, flashlight management and hiding in shadow.
Pizza Titan Ultra$11.99
Pizza! Giant robots! Lasers, destruction, evil cyborgs! Arcade action in a fully customizable mech with a pizzeria in its chest.
Coffee Shop Tycoon$9.99
Manage your own coffee shop and control every detail to make it the most popular one in town! Roast your own beans and create your recipes. Hire and train your staff, manage your economy and marketing, and destroy your competition to become the ultimate legal coffee monopoly in Coffee Shop Tycoon.
Tactical Craft OnlineFREE
Tactical Craft Online - MMO sandbox with tactical role-playing elements with a large open fully destructible world, with clans, trade between players, construction limited to the players imagination, various crafting, mining of multiple ores, farming, fishing, a massive tech tree etc.
CastanFREE
Explore an open, post-apocalyptic city, delving into run-down shops and apartments, where mutated creatures run rampant. Few survivors remain alive in a small, secure settlement. Paying off your debt to the mafia will be no easy task as you dive into the dangerous, contaminated city of Castan.
Paradigm Shift$0.99
Paradigm Shift You awake from a terrifying nightmare to discover that your home city of River Lake has been devastated by an explosion at a neuroscience laboratory.
Lone Leader$0.99
Lone Leader is a unique zombie apocalypse survival game. Your only aim in life is to survive. Explore the spine chilling open world map in a quest to survive.
苍白花树繁茂之时Blood Flowers$7.99
A puzzle ＆ plot single-player game. It all starts with the falling star ...... Through the puzzle, find the childhood memories while gradually unraveling the truth of the "Blood Tree Plague" hundreds of years ago.
Echoes of the Fey Episode 0: The ImmolationFREE
Imagine being the only survivor of an explosion that kills thousands of people. That is the fate of Sofya Rykov. And survival is just the beginning of her tale... Episode 0: The Immolation is a free, standalone chapter in the Echoes of the Fey adventure game/visual novel series.
Damn Endless Orcs$1.99
Damn Endless Orcs is set in a medieval fantasy world, where human heroes battle relentlesly against an (you guessed it) endless horde of orcs. In this game you must survive and gather equipament to fight the horde and become earths mightiest hero.
Climb VR New York Parkour$19.99
Climb New York VR is a great Climbing game where you can free run. In Climb New York VR, you can freely do everything you want to do in real life, where you can complete the parkour by jumping over the buildings, where you can time travel through portals.
Elijah and the Out of this World Adventure$3.99
A sci-fi action game that explores the great sites of Ohio!
Sky traveler$10.99
Simulator of life in the Japanese village. Building your own village. Use the portal to move around the islands and collect resources. Once you're ready - go to other worlds. There is work for you too. Relax and feel like a hero in this world.
25 Cadre of Death$5.99
The dead city of Time Beach, in the American state of Misuri, generates a sense of fear and loneliness. This city and its districts are completely cut off from the real world. The main character is Caleb Ridus, having got there for not understandable reasons, it is necessary to understand what happened in this city.
ZombieZoid® Zenith$5.99
Prepare yourself to get in a fantastic world of adventure, action and fun.Prepare yourself for ZombieZoid - Zenith!Live this fantastic adventure with the little Arthur and face hordes of undead that spread through the town and help him to save his girlfriend.
House of Evil 2$6.99
House of Evil 2 - Survival horror survival with a first-person view, in which you can test your nerves for strength. Events take place in the mansion, which exists in reality.
Phantom Thief Mew's Secret Prima$6.1
In an unexpected turn of events, Miu becomes a phantom thief. As a phantom thief, you have to carry out various mission along with her childhood friend, Chinatsu. To complete your mission,you have to sneak into the targetted location and dodge the obstacles in the way to proceed.
REDSHOT$9.99
Multiplayer Update now available! Quick reflexes and clever strategies are required in REDSHOT, a bullet-time metroidvania where everything is deadly, but you are deadlier. Can you save the royal city from total destruction? ...Can you do it with style?
Siege of Treboulain$6.99
Defend your magical city from an enemy army in an epic fantasy game of swordfights, political maneuvering, and romance! Will you prove worthy of your crown?
Rap Attack!$6.99
Tour around the world and become a rap star in this fun 2D pixel-art platformer!
Devil Sealing Stone$7.99
Devil Sealing Stone is an action-puzzle game with magic style. In an underground city full of bizarre and magic atmosphere, adventurers can explore the ancient and mysterious epic by virtue of all kinds of steles and praise of ancient creatures.
War Machine$5.99
War Machine is a First Person Shooter in which a soldier (Ryan) has a mission to save the world from a machine revolution.
Day of vaccination$10.99
Day of vaccination is a rogue lite action game in which you make your way through the city to stop the evil doctor. In the battle for your city you can unlock 16 different characters and choose between many different weapons. You have to explore the area and search through houses and shops.
Penelope's OdysseyFREE
Penelope's Odyssey is an adventure-platfomer game where you play as Penelope, an orphaned pet rat. Use your unique sense of smell to navigate the maze of a post apocalyptic city, collect memories of your owner and eventually escape to freedom.
Romp of DumpFREE
Visual novel fully animated in Live2D, Observing Scum Prisoners! In a prison called a dump, a betting card game among dangerous prisoners begins. Penalty game for the losers! Uncover the hidden pasts and bizarre crimes of these lunatics!
Pandemic Bunny$0.99
FIGHT THE GLOBAL PANDEMIC BOTH IN GAME AND REAL LIFE! Save humanity by shooting your way through hordes of viruses in your quest to find and use vaccine. A percentage of all proceeds from Pandemic Bunny will go towards charities aiding those affected by the current global pandemic.
Lost Paws$14.99
Survive as a stray dog in a large open world. Scavenge, craft, trade, and steal your way into a world where all the pets are disappearing. Arm yourself and take to the streets to rise from homeless to well-off no matter what it takes. What kind of story will you tell?
Light City District$5.0
A Game And Watch-like game with a cinema noire story, set in an openworld game in real time.
SURV1V3$24.99
Forget what you have played so far, SURV1V3 is a unique realistic zombie survival fps game expressly designed for VIRTUAL REALITY that will let you test your survival skills. Play the thrilling story in single mode or coop with your friends (up to 4 players) and survive the apocalypse!
Infected City$0.99
Infected City is a first person shooter. In this game, all people have turned into zombies. You have to pick up dusty weapons and protect yourself, and most importantly, save your beloved wife from hordes of bloodthirsty zombies.
The Prison Game$24.99
The Prison Game is an online multiplayer survival game. Your mission is to try to survive in harsh prison conditions, against vicious death row inmates, by using your own capabilities, skills and abilities.
Osteya$4.99
Osteya - the city which once was home to many people over the centuries. According to historians, there is a legend that Osteya stuck in time between worlds.
Dracula: Vampires vs. Zombies$14.99
Hordes of zombies and vampires prowl the city, looking for the last surviving humans. It’s a competition: who will get the last man standing. They don’t expect this man to be the most badass B-movie star Chuck Steelballz. Standing upon his trailer he’s going to deliver JUSTICE with his bow and arrows.
Live/WireFREE
Live/Wire is a competitive multiplayer arena FPS with a sci-fi edge. Players face off in intense 4v4 matches, wielding an arsenal of electricity-powered guns, and a recharging plug that doubles as a grappling hook. Swing around the city, call down the thunder, and then bolt before the cops show up.
The New SheriffFREE
A shooter where you won't have to shoot everything, presented in black and white like classic westerns.
The Red StareFREE
Become a secret agent in the 1950s and observe your neighbours to find the communist spy!
Beyond the Wall$2.99
The world is in chaos. Avalon V is the last paradise on Earth. Here, behind huge walls, people live a quiet and happy life. But what lies beyond the wall? You have to find the answers to this question. The player's main task is to survive, to interact with the NPC and surrounding world.
Retro Miami$0.99
Retro Miami - it's an adrenaline thriller, full of primitive brutality, deadly gunshots and roofing fights.
Monomyth$19.99
MONOMYTH is an immersive, first-person dungeon-crawling RPG inspired by the genre's late classics. Embark on a journey through a vast and highly interactive game world as you unravel the mysteries hidden beneath the ancient fortress of Lysandria.
Streets of Rage 4$24.99
Amongst the best beat’em up series ever created, jammin’ ‘90s beats and over the top street fighting, the iconic series Streets of Rage comes back with a masterful tribute to and revitalization of the classic action fans adore.
ZIC – Zombies in City$4.99
Control a team of 4 characters, switching between them to use their unique abilities. ZIC: Zombies In City is a first person zombie survival shooter.
Invasion 2037$9.99
Become a survival scientist in a savage post-apocalyptic world where aliens have the control of the world and find a cure, manage your shelter and fight to survive
Axeson's Fury VR$10.99
Axeson's Fury VR throws you into an intensely combative arcade style virtual reality environment that will have you fighting for your life and that of your family as society is turned by dark unknown forces. Become John Axeson and be all you can be... one mean slick fighting machine!
Extra Coin$4.99
Extra Coin is a story-rich life sim set between the real world and a virtual utopia: explore the city, do activities, and face your opponents. Would you rather respect the Loop or break it to find your lost parents?
Geometric Sniper - Blood in Paris$2.99
Katy, a French sniper, needs to protect her magnificent city! A 2D sniper game like you've never seen! In this second game of the “Geometric Sniper” series the missions are increasingly challenging, you won't have second chances. Accuracy is everything!
Distortion VR$19.99
The world of Distortion exists in a Cyberpunk mega city in the near future. It is a world where technology is being abused and the citizens are being controlled by thought from birth. What's real is uncertain.
HORDE ATTACK$8.99
Horde attack is a demolition derby in middle ages! Send swarms of riders from city to city to conquer the huge world in this fast-paced multiplayer strategy game!
Among the zombies$10.99
Among the zombies - you have to play as a survivor in a city filled with zombies.