Top similar games like Unknown Signal: Invasion:
Unknown Signal: Invasion $39.99
Unknown Signal: Invasion is a continuation of the exciting sci-fi game. This time you have to go to an unknown planet to investigate a new mysterious signal coming from an unknown source.
Filters
Price (USD)
Release Date
Recommendations
BLACK RUNES$3.99
Black Runes is a horror game with first-person puzzle elements, in which you have to play as a person caught in a hopeless situation, shrouded in magic.
Space Strider$2.99
Space Strider is a 2D Sidescroller Shoot 'em up with Roguelite elements, where you beat hordes of enemies and defeat unique bosses. Unlock, upgrade and level up your Spaceships to become the ultimate Space Strider!
Kizuyami | 刻闇$4.99
Kizuyami is an atmospheric psychological horror game. You find yourself in a never-ending Japanese street that you cannot leave no matter where you go. You stumble upon the same house over and over again, which calls for you in inexplicable ways. Will you be able to find your way out?
The Obscura ExperimentFREE
Anabasis & Co. welcomes you to the family - we’re so glad to have you here! Your mandate as part of this research project will be to monitor and document a new energy form: the [REDACTED]. To begin, let’s review your perso- oh? We’re detecting some anomalies near you… care to investigate?
Lost Contact$9.99
LOST CONTACT is an exciting realistically designed space station shooter. As the main character of unflinching Nil Heard you will experience soul grabbing horrors of facing the mutant monsters of the Universe.
Galactic Rangers VR$11.99
Galactic Rangers VR is a first-person space action VR game, deeply immersive, just as arcade shooter should be. Grab your pair of blasters and fight through endless waves of enemies for as long as you can!
Creatures of Ava$24.99
Let your empathy guide you as you play an exciting action-adventure, creature-saver game. Understand and tame the creatures of Ava and let them lead you through a variety of ecosystems – all in the hopes of saving the planet from a life-consuming infection.
AIRA VR$9.99
You believed tower defense is only about building towers? That's not quite right – because AIRA VR is not like other tower defense games in virtual reality. Once the battle starts you find yourself in the midst of the fight!
EBOLA 3$19.99
EBOLA 3 - is created in the spirit of the great classics of survival horrors. In this game, you will control the main character with a first-person camera which makes you feel like you’re in a real horror movie.
Support$9.99
After sending several probes to a certain planet, all contact was lost, so an exploration team was sent to investigate, but they fell into an unknown struggle.
S.W.A.N.: Chernobyl Unexplored$12.49
S.W.A.N.: Chernobyl Unexplored is a science fiction FPS puzzle horror game, which takes place a few months after the Chernobyl Nuclear Plant disaster. Experience a tale about an unexplored area within the Chernobyl Exclusion Zone - The S.W.A.N. Institute.
Venge$1.99
Get ready to explore a movie studio that vanished into thin air, only to find yourself trapped in a twisted, alternate dimension where creatures lurk in the shadows, waiting to ensure you never see the light of day again...
EBOLA 2$14.99
EBOLA 2 is created in the spirit of the great classics of survival horrors. In this game, you will control the main character with a first-person camera which makes you feel like you’re in a real horror movie.
Left to Rot$3.6
Left to Rot is a walking simulator psychological horror game. You take on the role of Luca, a young man caught up in a horrific mystery. If you make noise... It's game over! (You will need a Microphone)!
Banshee Hunt$3.99
Banshee Hunt is a Banshee hunting horror game, a supernatural spirit from Irish folklore, on an island isolated from the world. Track the creature by listening to its distant cries and loud screams, prepare your weapon and kill it, before it reaches you.
Us Against Aliens$9.99
Us Against Aliens is a survival shooter game on a spaceship that flies towards Earth. On the ship, something is constantly happening and you need to solve these problems along the way by shooting back from aliens who are constantly hunting you
Abyss of NeptuneFREE
Abyss of Neptune is a survival horror game set in the deep seas of the Bermuda Triangle. You are sent to investigate a mysterious underwater signal, but there is more to it than meets the eye. Do you have what it takes to survive the abyss?
Last Signal$0.99
Last Signal is a short, story-driven, walking simulator visual novel. On a mysterious journey through space, astronaut Adam 'Echo' Winters awakens in an abandoned station with amnesia. He must unravel the secrets of the station, where reality and illusion are intertwined.
Witness of the Night$4.99
Survive the night in an old observatory, helping your friend find the sources of mysterious radiation from outer space.
E.Y.E: Divine Cybermancy$9.99
In a dark Cyberpunk world, you (and up to 3 friends) wage war against the all-powerful Federation in this Source-powered FPS/RPG.
Sin-Cay$2.99
A sci-fi adventure with shooter and puzzle elements. The game follows the adventures of Shin-kai, a half-divine creature animated by ancient magic in an uncharted and mysterious world. The story begins in 1959 in the Soviet Union, in a place called "the mountain of the dead".
Starway: BaRaider$5.99
This is a sci-fi VR action shooting game. Mechanical frenzy is coming! Players have to teleport to survive from thousands of bullets.
dead run$2.99
Travel around a fully-explorable, post-apocalyptic version of Earth and find the source of a mysterious radio signal. Collect supplies along the way to stay alive. Is there anyone out there?
SuperOffice$9.99
SuperOffice is an intense top down view shooter experience where time moves only when you move.
Bob's Mansion$4.99
Bob's Mansion is a First-Person, Survival Horror, Adventure game where you use your skills to Run, Hide, Fight and Survive the darkness within your family home.
Mecha Knights: Nightmare$15.99
Mecha action shooter, plunging the player into an apocalyptic war. Engage in epic battles with endless hordes of monsters in your powerful customizable mechs.
Project Valkyrie$8.99
"Project Valkyrie" is history that you have to see for youself
Escape From This Planet$2.99
You will travel through countless planets and encounter strange vegetation and life that may not like your presence. Run away from them and survive this unknown journey.
Settlement Zero$14.99
Settlement Zero is a first-person VR adventure using free movement, mixing open exploration with frantic combat as you defend yourself against autonomous spacecraft and robots.
RE Encryption$0.99
A multi-moded adventure/rpg/topdown/puzzler/platformer game which follows a story while testing your skills in multiple ways. This game varies from timing to strategy and to general skill. RE Encryption is a short experience.
RoboHuntersFREE
Top-down 3D action shooter. Fight against swarms of rogue AI machines and survive as long as you can!
SignalFREE
Signal is a third-person adventure game full of unknowns and dangers, where the player takes on the role of a father searching for his daughter, facing extreme life and death decisions, the player must rise to the challenge of finding clues and solving puzzles in order to have a chance of survival.
Dread X Collection 2$9.99
Explore 12 horror games made in 10 days connected by a meta narrative experience you didn't expect. Step into a world of darkness and discover the secrets you didn't know were right beneath the surface. Find the tapes and unlock the mystery inside the Dread X Collection 2.
Snowscape$4.99
Snowscape is a roguelite adventure that combines top-down survival with snowmobile racing. Race down risky snowy mountains by day and survive the monstrous horrors lurking in the dark by night. Can you escape the twisted nightmare of this mysterious, frozen wilderness?
Aftertime$2.99
Experience an epic journey across utterly mutated yet picturesque world caused by a fallen meteorite that released unknown toxins to the atmosphere. In this new age, humans have become zombies and once again, dinosaurs roam the earth. Giant mushrooms and massive creatures are sights to behold.
Moon Defence$8.99
Aiming is uneasy, movements are slow, resources are hard to earn. Stop farming infinite vegetables, try to acquire some more jigowatts in empty space, where no one can hear your scream. Moon is a harsh mistress.
Faraday Protocol$19.99
Faraday Protocol is a first person puzzle game that will test your wits and intelligence. Use the Bia-Tool, an ancient pistol-like relic of an alien civilization, to solve puzzles by bending energy and manipulating enigmatic machinery.
Celestial Impact Invasion$0.99
First-person Ability Shooter with fast-paced action, bosses, and multiple levels. A meteorite crashes, leaving a powerful resource that others are willing to do anything to obtain, alongside a dangerous creature that arrived with the meteorite. It's up to you to stop them and save the world.
The Eyes of Ara$14.99
Explore a vast, mysterious castle riddled with secret rooms and challenging puzzles in this award-winning puzzle adventure.
EndGame$2.99
The world's most difficult speedrunning game A control RPG game, travel across time and explore places humans cannot go. 200 monsters, 35 backgrounds, 600 total skills (including monsters)
Mars 2055$19.99
You wake up, alone, on a planet that appears to be Mars. There is not much else I can tell you.
SEIDEN$2.99
A sci-fi RPG adventure. Start in modern times and explore infected areas on Earth. Travel back in time and annihilate the void. Numerous monsters and dungeons await you.
Thunderday$12.99
Thunderday is a twin stick shooter where you play as one of several heroes fighting through multiple worlds to find the one responsible for destroying their home.
The Last Patient$0.99
"Last patient" is a short first-person horror shooter with a frightening atmosphere.
Sivi's FactoryFREE
Sivi's Factory is a single player first-person horror game in which you play as Felix. You are looking for your brother on the scientific factory. Solve puzzles on the locations, explore new rooms, fight your enemy and go deeper into factory.
Entropic Decay: PrologueFREE
This is the free prologue version of Entropic Decay, a fast paced, but slow burn horror/action FPS inspired by games from the late 90's through early 2000's. Enter volatile scenarios filled with danger, from both the living and the dead, where wits are as crucial as brawn...
MortuarFREE
Mortuar is a 1-4 player Online co-op psychological horror game. Delve deep into Hoia Baciu Forest where eerie sightings and paranormal activity have transpired. Make use of various ghost hunting equipment to first identify the ghost's type, then attempt to banish it back to the afterlife.
Planet of the Eyes$9.99
An atmospheric narrative-platformer about a service robot stranded on a mysterious planet, Planet of the Eyes features a stunning visual mix of puzzle and platforming challenges, an original musical score, and fully voiced audio logs left by another survivor. Explore the mystery of an unknown world.
TemanavaFREE
TEMANAVA is an Adventure/Exploration game where you play as a co-pilot who survived a crash. You will have to learn an unknown language in order to communicate with strange islanders and use your mysterious powers to find your commander!
Unknown$0.99
Darkness. Nothing. There’s no memory of what has become. All you have is a flashlight to navigate the horrors ahead of you. Use your wits to solve the puzzles and escape the levels of the dreaded facility. You don’t seem to be alone though…
Deep Diving Simulator$19.99
Submerge yourself in one of the most immersive diving simulators to date. Gather your gear, choose your diving spot and discover what lies beneath the surface as you venture deep into the unknown.