Top similar games like Signal Simulator:
Signal Simulator $19.99
Game inspired by SETI. Take the role of a scientist to find an extraterrestrial signal .Control massive Radio Antennas by using interactive control in your Observatory. Detect , download and decode unknown or story telling signals. Manage and Maintain an electrical system to improve your systems and make it more efficient.
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First Contact$1.99
Strange radio bursts have been detected! Embark on an immersive adventure as you analyze radio signals coming from space, decipher hidden messages, symbols, sounds, and translate alien languages. Follow an engaging story with countless dialogues and game-changing choices.
The Fermi Paradox$18.99
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.
Planet Scanner$7.99
Scan the stars and claim planets for your corporate masters! In Planet Scanner, you will discover unique new worlds, decode transmissions, and upload data all in the name of keeping your job. But what happens if you gaze too long in the void?
Dread X Collection 5$9.99
A horror anthology in the Dread X Collection series. Featuring 12 new games from up-and-comers along with veterans, all wrapped up in an old, run down party venue that may be hiding more than it's letting on...
Abduction$9.99
Abduction is a singleplayer psychological horror experience. When unexpected visitors arrive in the middle of the night, you must defend your farm in order to take back your land.
Perilous Warp$14.99
Perilous Warp is a fast-paced indie retro-shooter inspired by the classic 3D-actions. Communication with a distant space colony has been lost, and you bravely step into the teleporter with the desire for glorious adventures. But do not expect to win in a heartbeat!
Angry Universe VR$14.99
Welcome to a VR game where you rule the universe! Break stuff, enjoy gravity physics, and survive natural disasters. And the best part? Fight off aliens using several guns or even asteroids. Try everything you can to keep your home solar system safe from the dangers out there!
Star Valor$24.99
Choose your own destiny as you explore an open-world procedurally generated galaxy where anything is possible. Become a miner, a trader, a bounty hunter, a pirate, or perhaps a jack of all trades. Start off small and build your way to the top but remember with every action, comes consequences.
SPACE TOW TRUCK - ISAAC NEWTON's Favorite Puzzle Game$9.99
Control gravity, orbit around black holes, and have fun mastering physics with your car in space! With this educational puzzle game, only your genius and your analytical skills can get you out of trouble after a painful car crash on the Moon!
Planetary Settlers$4.99
Planetary Settlers is a family friendly game with real benefits! Learn about the solar system as you play. Experience realistic gravity as you control Blue 42 on each planet, completing mini games, uncovering secrets, solving puzzles, and completing quizzes to enhance your abilities!
Interstellar Rift$19.99
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!
Rodina$14.99
A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!
Cellular Harvest$6.99
A lo-fi game about photographing aliens so that your employers can turn them into toothpaste. Explore. Photograph. Catalog. Harvest.
Resistance Forces$3.99
Save the areas seized by creatures. Complete all tasks and take over the area. Investigate the area and report the results.
There's Something In The Ice$4.99
In 2015, three scientists at the Antarctic research station "Zarya" drilled into the ice to a depth of 2 kilometers and took samples for study... It seems that what they found was not at all what they were looking for...
Osiris: New Dawn$34.99
Osiris: New Dawn is an unforgiving near future space survival game with a cinematic feel and elements of horror. Play as a Mission Specialist in single or multiplayer to build your planetary base, pilotable vehicles, and controllable drones as you explore a dangerous solar system far from Earth.
The Future Project$9.99
Take control of an AI soldier, explore planets, and partake in fast paced combat in The Future Project, a first person metroidvania. Explore distinct worlds, obtain new weapons and abilities, and defeat powerful enemies in humanity's quest to journey the stars.
Cryoterror$2.99
A space horror game with retro-like pixelation and dithering effects, where you explore a desolate spacecraft and its mysteries.
Anomaly Corridor$1.99
Navigate a seemingly endless corridor, uncovering eerie anomalies as you struggle to escape your doomed ship!
Starport Delta$24.99
Build amongst the stars in Starport Delta, a light sci-fi strategy game that focuses on survival. Station Commanders across the universe will turn to you for guidance to expand, defend, and survive. Help them build a thriving station, but watch out, there are many dangers hiding in space...
Stars Die$4.99
A giant cathedral of flesh has appeared in the middle of the ocean on a dying world. A small group of scientists are secretly investigating it when a mysterious woman appears, facing an impossible task.
CHAOTIC ERA$16.99
AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.
Newton's Fourth Law$11.99
Fight against brain-rot in this story-driven educational physics puzzle game. You will need to learn and apply high school physics concepts to solve increasingly challenging problems and uncover a galaxy spanning plot. When you have finished, you will be able to take a college level physics course.
Battlecruiser Generations$6.99
In celebration of the 25 yr anniversary of the first release, this compendium contains all 4 games in the Battlecruiser 3000AD series which was first released in 1996.
Star Explorers$4.99
Planets, aliens, resources, upgrades, caves, mapping & documenting star systems ... seek a new home for the human race. An all-inclusive (admittedly janky) procedural space-sim made by solo developer Schmidt Workshops.
1000 days to escape$4.99
Only 1000 days left until the end of the world. You have to realize the largest space program ever to save as many people as you can. Explore planets, colonize them, help people find a new home.
PREDATOR AND WRECK$6.99
Test your mettle with the award-winning stealth horror/sci-fi game PREDATOR AND WRECK. Keep your eyes and ears open, and be on the lookout for the strange, mutating, man-eating life form stalking the space station while you attempt to make your escape and unravel a mystery.
Subnautica$29.99
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
Rebots$14.99
Rebots is a first-person automation game with an expansive universe to explore. Using intelligent(ish) rebots, you can gather resources, terraform planets, and scan all of the things. Traverse the galaxy in the name of space capitalism!
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.
Under ObservationFREE
You are a researcher working at a Bioweapons R&D company, focusing on national security. The weapons being developed here are usually horrifying beasts that possess many different perks. In your case, one of them has escaped and it's up to you to continue your research or escape the facility.
The Corn Maze$3.99
Navigate a haunting corn maze in this atmospheric exploration game. Manage your flashlight battery, search for compasses, and uncover eerie secrets while avoiding what lurks in the shadows. Simple mechanics, immersive tension—can you find your way out?
Morbid Catastrophe$2.99
A game based on a recurring nightmare. A catastrophic horror game where you play as a recently divorced man trapped between the real world and a failed underground experiment. Solve puzzles by shifting realities, alter maps with special cards, and escape a relentless creature to restore normalcy.
Somewhere on Zibylon$9.99
The game is filled to the brim with the atmosphere of cold space and zero gravity, features unusual game mechanics with a lot of puzzles, exploration, stealth, resource extraction, crafting, fights with alien forces and seizing space stations!
Somnium Tenebris$4.99
Somnium Tenebris is a 5-player, investigative horror game set in a Lovecraftian world. Explore the depths of the ocean with your team as you uncover evidence in your efforts to identify the megalithic creature... and escape before it's too late.
Earth Attack$2.99
Tragedy strikes as aliens attack Earth. You're left alone to pilot the last remaining spacecraft on its way back to Earth from Mars Colony. Avoid missiles, asteroids, enemy ships, and more as you accumulate high-scores in Earth Attack! Can you survive long enough or will you perish?
UbermenschFREE
First-person mod of the Unreal Engine Lyra starter project
Silent Breach$4.99
A short cosmic horror game where you remotely operate a land rover through an unknown planet labeled the silent zone.
Hope of HumanityFREE
Engage in the construction of your station from a variety of different modules. Create your space fleet. Protect your base from enemies...
Starryard$29.99
Welcome to Starryard, an adrenaline-packed space flight shooter. In this game, you will play the role of a pilot of a spaceship, maneuvering the spaceship to shuttle between the stars, and at the same time need to defeat the enemy in fierce battles.
Absolute Territory$9.99
Engage in futuristic space dogfights against large warships and enemy starfighters. Manage Newtonian flight physics and power settings, outwit and eliminate hostiles, and survive through hazardous mine and asteroid fields. Gripping action across the campaign and leaderboard game modes.
IFO$3.99
A spaceship simulator for aliens, an ever-changing rule discovery puzzle for humans.
Infected spaceship generator$1.99
Generator of random mazes with a search for objects, ammunition and weapons. Random placement of enemies such as zombies and mutants, including minibosses. Each new game will be unique.
Attack of the Giant Crab$7.99
Take control of the Giant Crab and cause the maximum amount of destruction while brushing off the military's puny attempts to stop you.
Star Fighter$0.99
Start Fighter is an arcade game about the battle of spaceships. Explore the space station, shoot down enemy ships with heavy laser cannons, and control a maneuverable battle starship or a giant cruiser.
Fear The Unknown - Dave StoryFREE
This story is one of the rare accounts we've managed to document—a tale from the few who have encountered UFOs and lived to tell the tale. Dave considers himself lucky, and maybe you will be too, if you dare to face the unknown and survive.
Among The Stars :UFO Hunting Simulator$1.99
The relaxing UFO hunting experience. Enjoy the peaceful nature sounds and the crackle of the fire as you gaze the stars and ponder the universe's secrets. Manage your hunger and stamina as you catch some UFO action swimming through the night sky. Some are satalites, but others... who knows?
Tantalus$2.99
You are a patrol staff aboard the spaceship 'Tantalus'. Explore a spaceship filled with mystery, uncover anomalies, and report them to the control AI.
SubwaySim Hamburg$34.99
Explore the picturesque U3 line of Hamburg's elevated railroad in the new SubwaySim Hamburg!
LetMeOut$7.99
Bundy is a scholar with a long history. You witness deep within him his research to cure his wife's dementia. The research involves extracting all electrical signals from neurons in living people, and you may also be a victim.
Beware Planet Earth$4.99
Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!