Games like Ultima Ratio Neptunus
Looking for games like Ultima Ratio Neptunus? Here are top action recommendations with a horror focus, selected from player-similarity data — start with The Subminer, The Last Earth Fighter or Submeris.
The Subminer is an underwater survival-exploration game set in an alien ocean beneath the icy crust of Enceladus. Mine your way through a breakable environment while being aware of your surroundings. You never know what dangers are watching you from the shadows. Manage your resources carefully while you are underwater. One small miscalculation could mean death. Progress through a procedurally gene… If you enjoyed this game, see our list of games similar to The Subminer.
View Game


THE LAST EARTH FIGHTER AN ATMOSPHERIC CINEMATIC SHOOT 'EM UP GAME... "The last defender of Earth… but sometimes, hiding is wiser than shooting." Key Features: Six unique environments, each with its own gameplay twist — from deep space and scorching deserts to underwater worlds and humanity's shattered remains. Reflexes meet strategy — dodge, hide, time your movements, solve environmenta… If you enjoyed this game, see our list of games similar to The Last Earth Fighter.
View Game


- 44%Game Brain ScoreMost mentioned positive aspects:humor, gameplayMost mentioned negative aspects:story, monetization73% User Score 11 reviews
Submeris A deep-sea mining adventure filled with exploration, danger, and survival beneath a mysterious island! Dig. Upgrade. Descend. And uncover the treasure buried deep below. --- About the GameSubmeris invites you into an immersive underwater experience combining exploration, mining mechanics, and survival gameplay beneath a remote and mysterious island. Start with just a simple … If you enjoyed this game, see our list of games similar to Submeris.
View Game


A FIRST-PERSON PARKOUR MYSTERY ADVENTUREVanished without a trace. Explore an abandoned city where you are not alone. As photojournalist Alo, you return to your childhood home—Chendao, a once-sprawling metropolis that, overnight, became an abandoned exclusion zone. In this single-player adventure, you're armed with nothing but her camera and parkour abilitiesas Alo traverses the procedurally gener… If you enjoyed this game, see our list of games similar to AnotherWhere.
View Game


Descend into a breathtaking alien ocean and uncover secrets lost for over 11,000 years. In Sinking Eternity, you awaken from cryosleep alone on a small island with no memory, only the distant echoes of an ancient mystery waiting beneath the waves. You must explore a vast, dangerous, and beautiful underwater world to survive.. and to discover the truth. Explore the UnknownDive into sprawling biom… If you enjoyed this game, see our list of games similar to Sinking Eternity.
View Game


- 94%Game Brain ScoreMost mentioned positive aspects:gameplay, storyMost mentioned negative aspects:grinding, optimization94% User Score 600 reviews
When they built the floating cities, they had no idea an insidious threat lurked deep below... Feed the Deep is a compulsive lovecraftian roguelike inspired by the likes of Dome Keeper and Spelunky. Dive into an ever-changing system of undersea caves. Collect resources that can be traded for upgrades and items. Explore ever deeper, managing dark spaces, limited oxygen, and hostile wildlife, and c… If you enjoyed this game, see our list of games similar to Feed the Deep.
View Game


- 87%Game Brain ScoreMost mentioned positive aspects:gameplay, graphicsMost mentioned negative aspects:stability, grinding87% User Score 5,232 reviews
We Need to Go Deeper is a 2-4-player cooperative submarine rogue-like set in a Jules Verne-inspired undersea universe. In the game, you and your crew must embark on many voyages into a mysterious undersea trench known as The Living Infinite. If you enjoyed this game, see our list of games similar to We Need To Go Deeper.
View Game


- View Game71%Game Brain ScoreMost mentioned positive aspects:graphics, storyMost mentioned negative aspects:replayability, stability71% User Score 2,373 reviews
FarSky is a short survival game in the depths of the Ocean. Collect all the pieces of your submarine and reach back the surface. If you enjoyed this game, see our list of games similar to FarSky.
For ages, the Wall has protected the last remnants of humanity from the horrors beyond. Now, cracks have formed — and through them, the Abyss is spilling into our world. You are a Guardian — one of the few brave enough to venture beyond the Wall, where nightmares roam free. Fight side by side with your allies, slay what lurks in the dark, and push back the endless tide before all is lost. Mast… If you enjoyed this game, see our list of games similar to Guardians of the Wall.
View Game


About This GameSignal Scavenger is a tactical third-person extraction shooter set in a fog-covered, post-apocalyptic world where humanity no longer exists—only remnants of a controlling organization and the prisoners it sends to die. You are one of them. Deployed into hostile regions filled with mutated threats and unstable signal zones, your mission is simple: clear, disable, survive, and extra… If you enjoyed this game, see our list of games similar to Signal Scavenger.
View Game


Special Edition SPECIAL EDITION — What's New? The Special Edition of Retro Sniper: Jet/Tiger Down expands the original 41-mission campaign with two terrifying bonus campaigns and a complete visual overhaul. 2 New Bonus Campaigns (8 New Levels): The Dead Zone (Levels 42-45) — The battlefield becomes a graveyard. Zombies swarm from all directions — fast-moving zombie runners, hulking zombie brut… If you enjoyed this game, see our list of games similar to Retro Sniper.
View Game


SPACE EXPLORER: Way Home (CONTAINS FULL SOURCE CODE + ASSETS) Tech Used: Three.js, JavaScript, HTML, CSS Lightweight browser-based game, with the option to be converted into an Electron desktop application. **Short Description** Lost 7,850 light-years from Earth. Explore an infinite universe, harvest resources, survive cosmic dangers, and guide Commander Nova back home.* > *The universe is inf… If you enjoyed this game, see our list of games similar to SPACE EXPLORER - WAY HOME (SOURCE CODE + ASSETS).
View Game


In this singleplayer mining exploration adventure, you explore mysterious caves in search of ancient treasures and artefacts. Bring your excavated loot safely back to the surface and sell them to the local merchant, or use them to upgrade and enhance your hammers with gemstones at the blacksmith. Rest assured, you will need all the help you can get to uncover the island's long-buried secrets and … If you enjoyed this game, see our list of games similar to Glintseeker Island.
View Game


This is just the beginning. We have a long road ahead and exciting promises to deliver add Scavenger Project to your Steam Wishlist and join us early. Scavenger ProjectScavenger Project is a 1–5 player, co-op focused, tactical exploration and mission-based game set in the SCP universe. Players accept missions issued by the SCP Foundation, enter abandoned zones, locate dangerous anomalies, attempt… If you enjoyed this game, see our list of games similar to SCP: Scavenger Project.
View Game


IntoTheAbyss IntoTheAbyss is an immersive underwater exploration game where you command a submarine navigating the mysterious depths of the ocean. Prepare to embark on an exhilarating journey filled with breathtaking underwater landscapes, hidden treasures. Game Features: Stunning Underwater Environments: Dive into beautifully crafted oceanic worlds, uncharted abysses. Resource Management: K… If you enjoyed this game, see our list of games similar to IntoTheAbyss.
View Game
Dive into the depths of "Deep Down," a thrilling Action RPG where you play as a brave miner exploring procedurally generated caves filled with valuable ores and hidden dangers. In this immersive adventure, each day presents new challenges and opportunities as you gather resources, upgrade your tools, and uncover the secrets buried deep beneath the earth. Explore Procedurally Generated M… If you enjoyed this game, see our list of games similar to Deep Down.
View Game


- 85%Game Brain ScoreMost mentioned positive aspects:gameplay, graphicsMost mentioned negative aspects:story, grinding85% User Score 520 reviews
Welcome to Ocean Keeper, a mining roguelike shooter with a top-down view. Play as a Miner whose spaceship has crashed on a planet, filled with underwater monsters. Find resources and artifacts for purchasing valuable upgrades. Use the time between each attack to power up your diver, mech, weapon or explore a new dungeon. Build automatic turrets, use drones to collect loot and improve your skill… If you enjoyed this game, see our list of games similar to Ocean Keeper: Dome Survival.
View Game


- 87%Game Brain ScoreMost mentioned positive aspects:story, gameplayMost mentioned negative aspects:grinding, replayability87% User Score 448 reviews
Quasimorph: End of Dream is the first chapter of the extraction turn-based RPG Quasimorph. Confront your fears in brutal shootouts with PMC -fighters and demons and try to survive to complete your mission and bring the gear back to your spaceship! If you enjoyed this game, see our list of games similar to Quasimorph: End of Dream.
View Game


- 56%Game Brain ScoreMost mentioned positive aspects:stability, atmosphereMost mentioned negative aspects:gameplay, grinding56% User Score 55 reviews
A deadly virus plagues the city in Null County and the residents now roam the streets as flesh-eating zombies. Tactically loot the massive open world and build a self-sustaining zombie-killing fortress. Will you be able to survive the apocalypse or will you become one of the undead? If you enjoyed this game, see our list of games similar to Dead Unending.
View Game


A World Forsaken: The Weight of a Broken Reality Humanity’s peak was its downfall. When the war against the gods was waged, no one expected the silence that followed. The gods did not just defeat mankind; they abandoned them to a profound curse where death is no longer an exit. In this world, the "Afterlife" has rejected the fallen. To prevent the world from being overrun by restless sp… If you enjoyed this game, see our list of games similar to ZERRE.
View Game


After disaster strikes a remote moon research base, your escape pod malfunctions and crash-lands on an Earth-like planet. Stranded with limited supplies, you must explore your surroundings, gather resources, and build shelter to survive. Once your basic needs are met, your goal becomes clear: build a new ship and escape the planet. But you quickly discover you are not alone. Hostile creatures roa… If you enjoyed this game, see our list of games similar to PlanetSmith.
View Game


- 85%Game Brain ScoreMost mentioned positive aspects:story, gameplayMost mentioned negative aspects:optimization, stability85% User Score 6,777 reviews
The world you knew is gone. You awaken as the last active Caretaker, a machine built for one purpose: save humanity. Across a vast ocean covering the ruins of Earth, you must recover human seeds, restore the Lazarus Complex, and prepare the next generation for launch into orbit. The Last Caretaker is a first-person survival-crafting game about systems, choices, and purpose. Every resource matt… If you enjoyed this game, see our list of games similar to The Last Caretaker.
View Game


- View Game64%Game Brain ScoreMost mentioned positive aspects:gameplay, storyMost mentioned negative aspects:stability, replayability64% User Score 862 reviews
Discover and mine resources for construction, light your way in the dark, explore and expand into your surroundings to advance your research. Capture the diverse, highly-adapted flora and fauna of the deep, but beware: the darkness hides unexpected horrors, with only the light keeping them at bay. If you enjoyed this game, see our list of games similar to Surviving the Abyss.
- 77%Game Brain ScoreMost mentioned positive aspects:gameplay, graphicsMost mentioned negative aspects:grinding, story77% User Score 325 reviews
Survival ARPG set in a procedurally generated fantasy world. Build a base, gear up, and fight to survive as you chase better loot and stronger enemies. If you enjoyed this game, see our list of games similar to Beyond the Map.
View Game


- 71%Game Brain ScoreMost mentioned positive aspects:gameplay, humorMost mentioned negative aspects:story, optimization82% User Score 38 reviews
Steamdeck Verified New FREE DLC : The Creators' Ruins!Get ready for a massive, free lifetime updateBeing the chaotic gremlins we are, we're thrilled to unveil this lifetime-free Biome DLC for your enjoyment! Gather your friends and prepare for mayhem: the Creators' Ruins are waiting to be explored (and most likely wrecked) by you! The Creators' Ruins seamlessly extends the base game of Mother… If you enjoyed this game, see our list of games similar to Mother Machine.
View Game


Overview Undergoes is an intense survival crafting game that plunges players into the depths of the earth, where danger and discovery await at every turn. You take command of a powerful drill ship, navigating through a labyrinth of procedurally generated mines in search of valuable minerals and hidden treasures. Each mine offers a unique and unpredictable environment, ensuring no two expeditions… If you enjoyed this game, see our list of games similar to Undergoes.
View Game


- 90%Game Brain ScoreMost mentioned positive aspects:gameplay, graphicsMost mentioned negative aspects:story, grinding96% User Score 1,638 reviewsCritic Score 79%5 reviews
Shape humanity with the power of the gods in Reus 2. Choose your giants, combine natural elements, and manipulate fate to guide the path of civilization. The choices are yours, and so are the consequences. If you enjoyed this game, see our list of games similar to Reus 2.
View Game


- 35%Game Brain ScoreMost mentioned positive aspects:graphics, atmosphereMost mentioned negative aspects:gameplay, story45% User Score 29 reviews
Stardiver is a sci-fi, single-player, action-adventure game where you pilot a ship, fight enemies, and slay Bosses. The game takes place entirely underwater.Stardiver will take you to an unknown world in which you’ll experience exciting fights, and discover new species and places. And you’ll take care of resources supply, crafting items in your base, and developing your own ship. If you enjoyed this game, see our list of games similar to Stardiver.
View Game


- 69%Game Brain ScoreMost mentioned positive aspects:graphics, storyMost mentioned negative aspects:optimization, gameplay69% User Score 169 reviews
A sci-fi underwater survival and exploration game If you enjoyed this game, see our list of games similar to INFLUXIS.
View Game


- 75%Game Brain ScoreMost mentioned positive aspects:gameplay, storyMost mentioned negative aspects:grinding, optimization78% User Score 946 reviewsCritic Score 67%4 reviews
Subterrain is uncompromising Sci-Fi survival on Mars! Manage the entire colony single-handed! Craft, Research, Explore and Fight against evolving mutants. Vast open world and randomly generated levels to explore! Can you survive long enough to escape the horror? If you enjoyed this game, see our list of games similar to Subterrain.
View Game


- 86%Game Brain ScoreMost mentioned positive aspects:story, graphicsMost mentioned negative aspects:stability86% User Score 216 reviews
Submarine Titans is a real-time strategy video game that takes place in the year 2115 after a comet has struck Earth, driving two human factions, the militant White Sharks and the scientific Black Octopi, to establish underwater bases and fight for dominance over the oceans. The comet also brought a mysterious alien race known as the Silicons, who compete with the two human factions to collect res… If you enjoyed this game, see our list of games similar to Submarine Titans.
View Game


- 88%Game Brain ScoreMost mentioned positive aspects:story, gameplayMost mentioned negative aspects:replayability, grinding88% User Score 238 reviews
Stirring Abyss is an indie tactical squad-based game with strong RPG elements in which you uncover the ancient mysteries of the depths depicted in the classic vein of Lovecraftian horror. If you enjoyed this game, see our list of games similar to Stirring Abyss.
View Game


- 63%Game Brain ScoreMost mentioned positive aspects:gameplay, storyMost mentioned negative aspects:stability, grinding62% User Score 1,168 reviewsCritic Score 65%1 reviews
The Forbidden Islands are Calling, Unlock their Secrets. Shipwrecked on an island, explore, adapt and navigate the land and perilous seas to stay alive. If you enjoyed this game, see our list of games similar to Windbound.
View Game


- 48%Game Brain ScoreMost mentioned positive aspects:story, gameplayMost mentioned negative aspects:optimization, stability48% User Score 273 reviews
Aquanox Deep Descent is a first person underwater vehicle shooter, in which players control a variety of customizable ships to engage in fierce battles in the dystopian deep sea world of Aqua. In the near future the Earth's surface has become uninhabitable. What remains of humankind lives in former mining and research stations, deep below the surface of the sea. Born and raised in the only wo… If you enjoyed this game, see our list of games similar to Aquanox Deep Descent.
View Game


What kind of game is this? This is a zombie simulation of the end of the environment to survive the game. The background of the game is one year after the zombie outbreak. Players will play three different roles, searching for supplies in an abandoned hospital building to survive. Each character has its own strengths and weaknesses, which will affect their chances of survival. The materials … If you enjoyed this game, see our list of games similar to 废土黄昏 Dusk of the wasteland age.
View Game


- 45%Game Brain ScoreMost mentioned positive aspects:gameplay, musicMost mentioned negative aspects:grinding, atmosphere45% User Score 224 reviews
Asteria is a fast paced indie platformer, wrapped up in a sandbox sci-fi world where everything is destructible, mineable, collectable, craftable and creatable. You play Ryker: the only surviving human colonist after your people were wiped out by local aliens. Now you’re stranded on Asteria, with no means of escape. This isn’t just about survival, it’s about revenge. Build your safe haven and go t… If you enjoyed this game, see our list of games similar to Asteria.
View Game


- 64%Game Brain ScoreMost mentioned positive aspects:story, gameplayMost mentioned negative aspects:stability, grinding64% User Score 998 reviewsCritic Score 64%5 reviews
Diluvion is a 3D deep sea, Jules Verne inspired, exploration game with RPG elements and thrilling submarine combat. As the Captain of your own vessel, you must grow and manage your crew as you search for the secrets of the past in a hauntingly beautiful flooded world. Forced into the deep oceans by a Great Flood that occurred countless centuries ago, humanity now lives trapped under a thick layer… If you enjoyed this game, see our list of games similar to Diluvion.
View Game


- 74%Game Brain ScoreMost mentioned positive aspects:story, gameplayMost mentioned negative aspects:replayability, optimization78% User Score 108 reviewsCritic Score 70%23 reviews
Disjunction is an upcoming single-player, cyberpunk, stealth-action RPG set in the dystopian underworld of New York City in the year 2048. The game follows the interconnected narratives of three characters as they unravel a mystery that will change the fate of their city. If you enjoyed this game, see our list of games similar to Disjunction.
View Game


- 91%Game Brain ScoreMost mentioned positive aspects:story, graphicsMost mentioned negative aspects:stability, grinding97% User Score 188,796 reviewsCritic Score 84%27 reviews
Survive in an underwater open-world If you enjoyed this game, see our list of games similar to Subnautica.
View Game


Silent Wreckage is a first-person 3D survival horror puzzle game combining deep-sea claustrophobia with virtual gas resource management. After receiving a message from his missing daughter, diver Zhang Yi ventures into the depths to investigate a sunken cruise ship. Upon entering, he becomes trapped in a distorted loop where time and space collapse, and the ship’s structure shifts between reality… If you enjoyed this game, see our list of games similar to Silent Wreckage|寂靜沉輪.
View Game


MINOS INITIATIVE – 2112A dark sci-fi survival CRPG set deep beneath the surface of a dying world — inside a vast, fractured underground network known only as MINOS. What began as a joint excavation and research project funded by powerful surface organizations has become something else entirely. Something no faction fully controls anymore. DESCEND INTO THE MINOS NETWORK Procedurally generate… If you enjoyed this game, see our list of games similar to MINOS INITIATIVE - 2112.
View Game
“COLLAPSE COMPANY” is a co-op horror roguelite action FPS for 1–4 players, centered around repeated expeditions into underground dungeons. Your primary objective is to activate the Particle Accelerator Reactor located at the deepest level of the dungeon and escape alive. Each round sends players into a procedurally generated dungeon, where they must explore, search for scattered items, collect r… If you enjoyed this game, see our list of games similar to COLLAPSE COMPANY.
View Game


You are Dr. Mehdi Algun, a linguist and researcher specializing in cutting edge pattern analysis. When military operatives arrive unannounced at your New York research lab, you're given no choice. Within hours, you're on a transport to a classified facility in the Arctic Circle. An impossible obsidian pyramid has appeared around the world broadcasting signals no machine or person can decode. You… If you enjoyed this game, see our list of games similar to The Black Pyramid.
View Game


Command. Survive. Evolve.You are the last Biocore Pilot — a survivor stranded on a dying alien world. Your only hope lies within the Biocore system, an ancient technology capable of creating life, weapons, and power beyond human understanding. But every pulse of energy draws swarms of hostile creatures closer. Survive long enough to rebuild, upgrade, and uncover what remains of humanity’s final ou… If you enjoyed this game, see our list of games similar to Core Remnants.
View Game


DESCEND INTO THE ABYSSAn online co-op horror game featuring a procedural underwater world, proximity voice chat, and terrifying creatures lurking in the dark. Go solo or with up to 4 players and dive deep into the unforgiving ocean, exploring submerged worlds, scavenging their treasures and surviving whatever guards them. LIFE IN THE SUBMARINEYour submarine is your lifeline. Learn to pilot it, re… If you enjoyed this game, see our list of games similar to Deep Panic.
View Game


Set out on a dark adventure in the shadow of an erupting volcano. Rescue people and animals while battling the wrath of nature and the spirits of fire in Into the Fire, a cataclysm extraction survival set in a dangerous world shaken by natural disaster. RACE AGAINST TIMENature has turned against humanity, but not all is lost. Venture into the very heart of hell to save yourself and others. As ash… If you enjoyed this game, see our list of games similar to Into the Fire.
View Game


WELCOME TO AFTERHEATA brutal solo survival game set in a scorched, post-apocalyptic Earth consumed by climate collapse. The world as we knew it is gone. Oceans have evaporated. Forests turned to ash. Humanity has fallen. What remains is a lifeless desert wasteland—relentless, empty, and silent. You are alone. No one is coming. To survive, you must adapt to the heat, fight exhaustion, scavenge w… If you enjoyed this game, see our list of games similar to Afterheat.
View Game


Return to Earth AtlantisPrepare to dive into Earth Atlantis 2, a thrilling post-apocalyptic SHMUP with Metroidvania-style exploration, set in a vast sunken world overrun by machine-hybrid sea monsters. Pilot a heavily armed submarine through relentless bullet-hell chaos, hunting over 20 colossal bosses—from a rock-armored crab to an ancient Megalodon—in heart-pounding bullet-hell battles across 9 … If you enjoyed this game, see our list of games similar to Earth Atlantis 2.
View Game


SYNOPSIS The rebel nation, Country N, has begun invading neighboring countries. They possess nuclear weapons and pose a major threat to the world. The international community dispatches a special forces unit to respond to this crisis.As an ace pilot of this unit, the player will pilot a state-of-the-art fighter jet and fight to neutralize Country N's nuclear weapons and put down the rebellion.… If you enjoyed this game, see our list of games similar to SUPER STRIPE.
View Game


Post-Apocalypse Revelation: Pan-Humanity Years after the nuclear winter, rapid global warming has caused the oceans to swallow most of the land, sinking former cities into the abyss. Yet the true horror lingers unseen: shattered fragments of human DNA drift through the air, invading organic life like a plague—twisting animals, plants, and even the earth itself. Giant trees pulse with human-like … If you enjoyed this game, see our list of games similar to Earth Parasite: Silo.
View Game

















































