Games like O3

Survirail is a first-person survival game set in a dark vision of the future. You play as one of the surviving crew members who lived through a sudden attack by androids—machines that unexpectedly changed their operating protocol and turned against humanity. As you travel through space, you explore space stations, gather survival materials, and battle hostile automatons. Each location you visit… If you enjoyed this game, see our list of games similar to SurviRail: Deep Space.

53%Game Brain Score

Most mentioned positive aspects:gameplay, humor

Most mentioned negative aspects:story, replayability

76% User Score Based on 21 reviews

        Step into the polished shoes of Chad Ironjaw, CEO of a sprawling research-and-development behemoth. From his luxurious office he gazes out over Millenniumopolis, the city of tomorrow, where gargantuan Art Deco skyscrapers, studded with gargoyles and neon lights, pierce through the clouds         What does a day in the life of Mr. Ironjaw look like, you may ask? The elevator doors part wit… If you enjoyed this game, see our list of games similar to Rise of Atom.

57%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, optimization

50% User Score Based on 796 reviews

Critic Score 70%Based on 12 reviews

The Long Journey Home combines the endless freedom of space with a new open questing system that always leaves you in command. Deliver the stranded Glukkt to his homeworld as he asks, or to your new slaver friends? Attempt to make allies with everyone, or pin your hopes on the tougher races, and hope they never turn on you? Jump by jump, make hard decisions and live with the consequences, in a uni… If you enjoyed this game, see our list of games similar to The Long Journey Home.

89%Game Brain Score

Most mentioned positive aspects:gameplay, replayability

Most mentioned negative aspects:grinding, stability

89% User Score Based on 1,997 reviews

Terraformers is a 3X game with roguelite elements in which you terraform Mars. Explore the planet’s wonders, exploit its resources and expand by settling new cities. Start the terraforming... If you enjoyed this game, see our list of games similar to Terraformers.

32%Game Brain Score

Most mentioned positive aspects:gameplay, graphics

Most mentioned negative aspects:story, stability

32% User Score Based on 282 reviews

Habitat is a successfully funded Kickstarter game from indie developer 4gency. It is a strategic space survival game where you have to build and manage the future homes of humanity from orbital debris that you find in space junkyards surrounding Earth’s orbit. Leading your team of engineers, you will have to build and fly your space stations in a zero gravity setting, mastering physics driven fli… If you enjoyed this game, see our list of games similar to Habitat.

59%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, stability

59% User Score Based on 54 reviews

Mysterious signal with an unknown purpose reaches Earth. Inside a space station, a lone Operator and the onboard AI are tasked with analyzing the signal, but the process itself seems to have an unexpected effect on them. Oversee the AI’s upgrades on its path to understanding the signal’s message. If you enjoyed this game, see our list of games similar to Interregnum Chronicles: Signal.

76%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:grinding, stability

76% User Score Based on 878 reviews

The Fermi Paradox is a choice-driven sci-fi narrative strategy game in which your decisions in one corner of the galaxy can upend entire civilizations in another. Guide species through millennia and help them explore the vastness of space, make contact and, perhaps, create harmony. If you enjoyed this game, see our list of games similar to The Fermi Paradox.

Eliond is a world devastated by mutation and war. Cities have collapsed, creatures have transformed, and the actions of Dr. Victor Madman continue to spread corruption across the land. The Cryselts, an elite task force dedicated to protecting the planet, work to contain the crisis and rebuild what remains. Explore diverse regions, battle hostile enemies, and unlock new weapons, abilities, and Bio… If you enjoyed this game, see our list of games similar to Cryselts.

In medieval Europe, sins give rise to demonic amalgamations. Heresy and fear slowly consume the entire realm. As Grandmaster of a knightly order, you are called to lead a crusade against this unholy menace. Gather your Brothers, strengthen your camp, and confront the Archdemons in fierce battles to reclaim the land from darkness. Band of Crusaders immerses you in a dark medieval fantasy where you… If you enjoyed this game, see our list of games similar to Band of Crusaders.

The Last Draw is an immersive single-player card RPG that plunges you into a post-apocalyptic world where the air itself has become poison. In this atmospheric survival experience, every card you reveal could be your salvation—or your doom. A World Transformed The Great Combustion wasn't a nuclear war or natural disaster—it was the day the atmosphere itself turned toxic. Chemical plants, weath… If you enjoyed this game, see our list of games similar to The Last Draw.

E.R.O.S - Extremely Rusty and Overtly Steamy In E.R.O.S., you take on the role of a small, dedicated robot built with one goal in mind: to care for and maintain a mysterious, decaying machine. The machine is your world, your responsibility, and perhaps your greatest burden. But there's a problem - it keeps breaking down. No matter how hard you try to fix it, its components fall apart, its structu… If you enjoyed this game, see our list of games similar to E.R.O.S..

Athelan Battlegrounds is a free-to-play, turn-based tactics game with no meta progression and no pay-to-win. It's a game made for players who thrive in a skill-based competitive environment. A game that promises to be easy to learn but incredibly difficult to master! Build your team of champions and engage in unique matches against players or AI! If you enjoyed this game, see our list of games similar to Athelan Battlegrounds.

After working all your life you have finally managed to build a device that allows you to travel between parallel worlds. will you be able to return home? If you enjoyed this game, see our list of games similar to The Voyager.

62%Game Brain Score

Most mentioned positive aspects:atmosphere, graphics

Most mentioned negative aspects:story, gameplay

94% User Score Based on 17 reviews

Space Tales is a story-driven sci-fi real-time strategy game where humanity’s expansion into the stars has awakened threats far beyond its control. You play as Xander Falcon, a young commander thrown into the role of hero after his father’s death. Under the banner of the I.P.E., humanity’s Inter-Planetary Expansion army, you will build colonies on hostile alien worlds, command retro-futuristic fo… If you enjoyed this game, see our list of games similar to Space Tales.

Explore a mysterious slum town and recruit women seeking fortune. Use them as fighters in a coliseum or to defend yourself against local threats. As a cunning guide, gather intel, use tools, and manipulate secrets to immerse them into the town's hidden desires. If you enjoyed this game, see our list of games similar to Slum Guide.

98%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, stability

98% User Score Based on 2,441 reviews

You’ve barely escaped the chaos that consumed your hometown overnight. The friendly residents of Grimshire, an isolated mountain village, offer you a new home. Restore the cozy old farmhouse, and tend the fields. But beware, the plague is coming. The community must work together if everyone is to survive. Feed Them Keep the root cellar stocked, balance the needs of both herbivores and ca… If you enjoyed this game, see our list of games similar to Grimshire.

91%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:character development, graphics

91% User Score Based on 141 reviews

Rule the galaxy or die trying!You were never meant to be the heir. You were the second child, the pampered princess, busy with your friends and your pet and your collection of beautiful shoes. But then your mother died, your brother the Prince turned traitor, and your father the Emperor disappeared under mysterious circumstances. Now it's up to you to win the Imperial Election and claim the throne… If you enjoyed this game, see our list of games similar to Galaxy Princess Zorana.

Mars vs Venus: The Battle of Minds github link: https://github.com/TwoBitCode/Mars_VS_Venus (for Assignment4: I think our implementation for the senerios is something worth noticing) "Can you truly understand the other side?" Discover the core formal elements of Mars vs Venus and detailed game insights on our Wiki page. Features Two Perspectives : Choose to play as … If you enjoyed this game, see our list of games similar to Mars_VS_Venus.

75%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:replayability, music

78% User Score Based on 225 reviews

Critic Score 65%Based on 2 reviews

Amass wealth, topple governments, achieve immortality. Spinnortality is a cyberpunk management sim where corporations are king. Can you build your technocratic power and create an empire that will stand for eternity? If you enjoyed this game, see our list of games similar to Spinnortality.

77%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, replayability

88% User Score Based on 329 reviews

Critic Score 53%Based on 4 reviews

Between Horizons is a narrative 2.5D sci-fi detective adventure. 33 years into the Zephyr's journey, its mission is suddenly jeopardized. Can you find the culprit before it's too late? Experience an enthralling story set in a semi-open world that branches and ends based on your choices. If you enjoyed this game, see our list of games similar to Between Horizons.

76%Game Brain Score

Most mentioned positive aspects:gameplay, graphics

Most mentioned negative aspects:grinding, stability

79% User Score Based on 15,549 reviews

Critic Score 73%Based on 22 reviews

Deck out your dome with 25 new buildings to give a fresh look to your living, working, and playing quarters. Whether it’s a Stirling Generator or a Spacebar, make sure you spruce up your space to be out of this world. If you enjoyed this game, see our list of games similar to Surviving Mars.

77%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:music, optimization

79% User Score Based on 678 reviews

Critic Score 71%Based on 2 reviews

Fate of the World is a dramatic global strategy game that puts all our futures in your hands. The game features a dramatic set of scenarios based on the latest science covering the next two centuries. You must manage a balancing act of protecting the Earth’s resources and climate versus the needs of an ever-growing world population, who are demanding ever more food, power, and living space. Fate … If you enjoyed this game, see our list of games similar to Fate of the World.

88%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:music, grinding

90% User Score Based on 3,658 reviews

Critic Score 85%Based on 3 reviews

Pilot drones into derelict spaceships to find the means to survive and piece together how the universe became a giant graveyard. If you enjoyed this game, see our list of games similar to Duskers.

78%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:replayability, grinding

78% User Score Based on 458 reviews

Found a powerful corporation. Use it to market horrific products, control the media, cause riots, crash stock markets, topple governments and become immortal. In this 8-20 hour turn-based management game, you will: Achieve immortality with cutting edge tech. Bribe politicians, spread fake news, rig elections. Research products such as metacritic for friendships, sentient social media and ‘auto-car… If you enjoyed this game, see our list of games similar to Spinnortality | cyberpunk management sim.

75%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:replayability, grinding

81% User Score Based on 13,200 reviews

Critic Score 75%Based on 3 reviews

Authorised by DOLOS AEC, you will guide the Tiqqun space station onwards in a perilous journey to find a new home for humanity. Station infrastructure, population management, exploration, survival, these responsibilities fall to you. Will you find hope out there in the dark? Good luck Administrator. If you enjoyed this game, see our list of games similar to IXION.

53%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:gameplay, music

50% User Score Based on 76 reviews

Critic Score 72%Based on 2 reviews

Meridian: Squad 22 is a single-player science-fiction real-time strategy game with a focus on base building and advanced tactics. Every single choice, every tactical decision you make, shapes the outcome of your story. If you enjoyed this game, see our list of games similar to Meridian: Squad 22.

87%Game Brain Score

Most mentioned positive aspects:gameplay, humor

Most mentioned negative aspects:replayability, stability

87% User Score Based on 198 reviews

A dark and satirical management sim, where you take control of a recycling factory with a twist: it recycles humans. Your job is to decide who gets to escape our dying planet in a cozy spaceship and who sacrifices their blood, sweat and tears for humanity. Literally. If you enjoyed this game, see our list of games similar to Organs Please.

56%Game Brain Score

Most mentioned positive aspects:story, music

Most mentioned negative aspects:gameplay, grinding

53% User Score Based on 189 reviews

Critic Score 61%Based on 6 reviews

Continue?9876543210 is an artsy, philosophical, action game for IOS devices, MAC, PC, & LINUX. Continue? was inspired by existential road trips into nowhere, Peruvian jungle drugs, and a brush with death while lost in the mountains of New Mexico. It is a quest for wonder, contemplation, and peace. If you enjoyed this game, see our list of games similar to Continue?9876543210.

74%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:gameplay, grinding

77% User Score Based on 474 reviews

Critic Score 75%Based on 4 reviews

My Lovely Daughter is a simulation game with elements borrowed from other works of fiction that involve alchemy as part of the narrative. The game want to focus on the idea that “life is not beautiful,” and the few things that can make it pretty are things like family and success. The game want to present the question of how far will you go to achieve them. If you enjoyed this game, see our list of games similar to My Lovely Daughter.

66%Game Brain Score

Most mentioned positive aspects:gameplay, humor

Most mentioned negative aspects:grinding, optimization

67% User Score Based on 945 reviews

Critic Score 63%Based on 2 reviews

Humanity is enslaved by an AI… which is awesome, because we’re on right side! If you enjoyed this game, see our list of games similar to Despotism 3k.

78%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:grinding, optimization

77% User Score Based on 189 reviews

Critic Score 79%Based on 12 reviews

Play out a Kaiju movie as the (hopelessly) outclassed military in this stylish 2D turn-based strategy game. Construct buildings and defend your city with cannon-fodder tanks, jets and more as the devastating kaiju grow in power with every attack. If you enjoyed this game, see our list of games similar to Kaiju Wars.

82%Game Brain Score

Most mentioned positive aspects:gameplay, graphics

Most mentioned negative aspects:replayability, stability

82% User Score Based on 750 reviews

Try your hand as a global planner of a future society. Play with a wide range of technologies and policies spanning different fields and ideologies. Will you lead the world to ecological utopia or planetary ruin? If you enjoyed this game, see our list of games similar to Half-Earth Socialism.

65%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:gameplay, music

73% User Score Based on 37 reviews

Critic Score 70%Based on 2 reviews

Assume the role of an enigmatic Captain from Terra as he embarks on a mission to explore a deadly world that promises wondrous and terrible power. Tempest Citadel is a strategy game set on a storm-ruled planet. Build a mighty Citadel in the clouds and lead your crew into battle. If you enjoyed this game, see our list of games similar to Tempest Citadel.

63%Game Brain Score

Most mentioned positive aspects:gameplay, graphics

Most mentioned negative aspects:grinding, stability

65% User Score Based on 993 reviews

Critic Score 60%Based on 8 reviews

Embark on an exciting journey in the gorgeous world of A FATE. Build a mobile village and travel with your tribe toward the center of the world, called The Eye. This turn-based resource-management game is made of procedural situations, natural events, skill-trees and hard choices. Ready to move? If you enjoyed this game, see our list of games similar to As Far as the Eye.

92%Game Brain Score

Most mentioned positive aspects:gameplay, replayability

Most mentioned negative aspects:optimization, grinding

92% User Score Based on 1,198 reviews

Fight climate change and save the world! If you enjoyed this game, see our list of games similar to Beecarbonize.

89%Game Brain Score

Most mentioned positive aspects:story, gameplay

Most mentioned negative aspects:replayability, atmosphere

90% User Score Based on 513 reviews

Critic Score 80%Based on 1 reviews

An American geological expedition, under a UN mandate, assesses the natural resources in a distant part of Siberia, deep in the trackless steppes of Eastern Russia. But instead of oil, they discover a deposit of a hitherto unknown mineral. American scientists working for Department of Defense find out that this mineral is in fact identical to the substance used to power an extraterrestrial artifa… If you enjoyed this game, see our list of games similar to Original War.

67%Game Brain Score

Most mentioned positive aspects:gameplay, story

Most mentioned negative aspects:music, stability

67% User Score Based on 516 reviews

Safehouse: Diaries is a fresh take on the zombie / survival horror genre. If you're sick of mindless shooters or generic-looking top down affairs that just don't get what the zombie genre is about, this is the game for you.About Screwfly Studios We're a two-man developer based in Australia, dedicated to creating deep, innovative strategy games for PC. Zafehouse: Diaries is Screwfly's debut title a… If you enjoyed this game, see our list of games similar to Zafehouse: Diaries.

89%Game Brain Score

Most mentioned positive aspects:story, graphics

Most mentioned negative aspects:stability, optimization

97% User Score Based on 4,522 reviews

Critic Score 60%Based on 2 reviews

X-COM: UFO Defense is a strategy game that combines tactical combat with base management and global defense. Players lead an international organization tasked with defending Earth from an alien invasion. The game unfolds on two levels: a global view where players manage resources, research alien technology, and intercept UFOs, and a tactical combat mode where squad-based battles occur. Players rec… If you enjoyed this game, see our list of games similar to X-COM: UFO Defense.

BACKGROUND (REAL LIFE) Please note that this game is being built as a "father daughter" project. My kid wants to be an AI Scientist and I thought this would be a good experiment to teach her about what GenAI can do today, how it may help humanity in the future, and how different computer mechanics today work together (software, audio, video, imagery, etc). You will see a lot of simil… If you enjoyed this game, see our list of games similar to the collective.

Idle Carbon Zero is a premium, high-stakes climate strategy simulation where you take command of the Global Environmental Agency (GEA) starting in the year 2026. Your mission is to steer humanity away from the brink of ecological collapse as global temperatures and CO2 concentrations rise toward catastrophic tipping points. Game Overview The game blends "grand strategy" with "idle simulation,"… If you enjoyed this game, see our list of games similar to Idle Carbon Zero: Save Earth.

About the Demo You start the game as a tiny bacterium in its most basic form, with low health and energy, poor eyesight, and an inability to distinguish food from toxic waste. Life is harsh, and you'll die more than a couple of times. Such is the condition of prehistoric Earth, where survival time is really short. But the game forces you to learn from your mistakes. You'll soon realize that choo… If you enjoyed this game, see our list of games similar to Symbio.

In a distant future where humanity has abandoned the solar system, leaving silent worlds and unsolved mysteries, you are a lone interstellar traveler who crash-lands on Earth. Now a desolate and unrecognizable planet haunted by the remnants of a vanished civilization, Earth becomes your unexpected battleground for survival. With no way to leave, your mission is to restore an abandoned launch base… If you enjoyed this game, see our list of games similar to A Silent Desolation.

Eternals’ Path is a rogue-like, turn-based tactical RPG. It’s about choices, the ones you made, the ones you regret, and those that will haunt you to your grave, and beyond… In this Narrative and Strategic game, build up Experience and Skills to face the 40 characters of two different procedurally generated Stages. Talk with them to influence the encounter, use your Conscience as a moral compass a… If you enjoyed this game, see our list of games similar to Eternals' Path.

Eden: Project New Earth lets you experience the adventure your way – in single-player or multiplayer mode. Play locally or on servers, with friends or strangers, together in PvE or against one another in PvP. Form alliances, build communities with others, or defend yourself against hostile adversaries. Transform from a bare clone of yourself into a pioneer, rediscovering technology and adapting it… If you enjoyed this game, see our list of games similar to Eden: Project New Earth.

Steel Artery is a train-city building simulator set in a steampunk fantasy world. Your task is to create a thriving city on wheels, where every wagon is a new piece of infrastructure and every decision shapes the lives of thousands of inhabitants. Once upon a time, the Empire built the legendary Steelpolis, a colossal train that showcased technological power, economic dominance, and authority. It… If you enjoyed this game, see our list of games similar to Steel Artery: Train City Builder.

Welcome to Cyberpunk: Static & Chrome, a gripping adventure set in a world defined by the intricate interplay of Identity and Humanity amidst the relentless march of technological manipulation. In a sprawling megacity where the skyline pierces the heavens and shadows consume the ground, an electric atmosphere pulses with both literal and metaphorical energy. This metropolis breathes to the rhyth… If you enjoyed this game, see our list of games similar to Cyberpunk: Static & Chrome - Google AI Studio as Proactive Emergent Textual Adventure.

One against a thousandMushrooms are trying to take over the world, will a lone samurai be able to overcome the threat of mushrooms filling the world? Slashboy is a classic arcade game, the main goal of which is to score as many points as possible by destroying mushrooms. You play as a samurai who can jump from wall to wall. Everyone who gets under the blade on the way will be exterminated. The … If you enjoyed this game, see our list of games similar to Slashboy.

SpaceSlog is a challenging sci-fi spaceship simulator that focuses on shipbuilding, crew interaction, and exploration. Inspired by games such as Rimworld, Starship Theory, Dwarf Fortress and X-COM, as well as iconic media such as Firefly, Battlestar Galactica, Stargate Universe and The Expanse. Your colony ship has been destroyed. Fortunately, a few survivors managed to escape on a small ship. No… If you enjoyed this game, see our list of games similar to SpaceSlog.

Update NotesUpcoming Alpha2.1(b521) We overhauled Enemy AI, Map, System, Ammo Management and so on. We added Tower Defense System, New Type of Enemies Upgrade Your TurretYou need to prepare for an invasion. Upgrade your turrets and get ready for the battles. New AreaAdded new area for this Tower Defense Update. There will be more and more places to explore, so please look forward to future updat… If you enjoyed this game, see our list of games similar to DEATH RATION: BACK TO 19XX.

Conquer assassins and alien invaders in Superlative London! Defend Earth and negotiate interplanetary peace as you race to rescue Queen Victoria in this thrilling sequel to The Superlatives: Aetherfall. If you enjoyed this game, see our list of games similar to The Superlatives: Shattered Worlds.