Top similar games like Helium:
Helium $0.99
Hardcore sci-fi first person shooter. You are a liaison on Vega 237 spacecraft. All crew members died and you are all by yourself in the midst of an unknown planet. Your goal is to find out what happened to the crew and establish the signal's nature.
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Teria$4.99
Teria: an action quest 3D game for science fiction fans. However, on June 17, 2143, the crisis center of the Central Astronautics Agency picked up a distress signal from small planet Teria, which was then forwarded to Alex. Alex is a private detective who at that time happened to be not far from Teria.
Signs of Life$9.99
Signs of Life is a sci-fi survival sandbox platformer with a combination of procedurally generated and hand-crafted content. You'll explore mysterious locations, Mine blocks for resources, and meet strange (and some familiar) creatures, some of which don't even want to kill you and eat your corpse.
Krystopia: A Puzzle Journey$4.99
Follow Nova Dune, a space explorer in her quest to find out about the unfamiliar distress signal she received aboard her ship. Determined to investigate it, she finds herself on a desolated planet where all civilization has vanished.
Woodsalt$24.99
"Woodsalt" is an adventure game set on the planet of Nu-Terra, 1000 years after Earth was evacuated during chaotic natural disasters and an attack by giant creatures.
Scavenger SV-4$14.99
Scavenger SV-4 is a highly replayable atmospheric first-person science fiction game. Part simulator, part roguelike, it has elements of action, combat, resource management, and a dash of horror. It is not quite like any game you have played before.
Deserted$19.99
Deserted is a stylized 3D action adventure with light RPG and narrative elements. Inspired by the alien atmosphere of Out Of This World, Deserted combines narrative storytelling with survival and fast paced strategic combat to deliver a thrilling adventure.
The Riftbreaker: PrologueFREE
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
Neon Rage$19.99
The night is long, cold and dangerous. But one thing is certain though. The night is never dark. The planet isn't suited for those faint of heart. Danger lurks everywhere and the ecosystem has been a fertile breeding ground for vicious animal forms. Grab your weapons and survive the night!
E06-AnomalyFREE
Discover together with Expedition Unit 06 new worlds. Solve the mystries of ancient civilizations and fight with his energy bow for survival.
GunBlocks - PrologueFREE
In this prologue you crash-land on a mysterious planet. In order to get your lost cargo back, use tetrominos, solve blocky puzzles, and get to know its not too friendly inhabitants.
The Riftbreaker$29.99
The Riftbreaker™ is a base-building, survival game with Action-RPG elements. You are an elite scientist/commando inside an advanced Mecha-Suit capable of dimensional rift travel. Hack & slash countless enemies. Build up your base, collect samples and research new inventions to survive.
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!
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.
Starway: BaRaider VR - Free TrialFREE
This is a VR action shooting game themed in science fiction. Mechanical frenzy is coming! Players have to teleport to survive from thousands of bullets.
Galactic Core: The Lost Fleet (VR)$9.99
Be the savior of your fleets by leading them back home with your own style an skill. Live in VR a new take on classic shooters by using different classes and strategies to beat your way through hoards of enemies, boss fights and many more in a fun and intense experience.
Amaranthine$2.99
Amaranthine - is a dynamic horizontal scrolling shooter with elements of procedural generation. Travel through warp to the distant frozen planet that sent a distress signal.
Cyrano StoryFREE
Born from an Alternate Reality Game experience created by Alice & Smith in 2019, Cyrano Story is a complex puzzle game designed to ascend to intergalactic forces and give insight into the backstory of Funcom’s cosmic horror game Moons of Madness.
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.
Super Ubie Island REMIX$9.99
Inspired by Super Mario World, Super Ubie Island REMIX is an adorable platformer. Help Ubie defeat Dr. Terrestrial, discover secrets, repair his ship and escape Climate Island. Run, jump and glide your way through more than 25 insanely fun levels!
Alien Hallway 2$4.99
We're happy to present a new game in the Alien Shooter universe! Get prepared to unique tactical gameplay, lots of monster types and 8 fighter types allowing you create your own style of completing missions and defeating bosses.
K37-D$1.99
In the year 2204 an average engineer gets an ordinary job offer that ends up being a lot more than he bargained for...
A.R.M. PLANETARY PROSPECTORS EP1 Asteroid Resource Mining$4.99
During an expedition, prospectors discover an alien artifact inside an asteroid. Upon contact, they’re teleported to another realm. Captured and enslaved on a mining barge, they mine asteroids in mech suits, all while devising an escape plan to freedom.
CRYEP$12.99
CRYEP is a hardcore two-dimensional action platformer that combines the genre of "rogue" and the mechanics of Contra. Actions take place in a parallel universe, year 3318. Go on an expedition and fight with alien enemies.
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
Salvation Prophecy$19.99
Salvation Prophecy is a military space epic. Human, mutant, and robotic factions are at war for galactic domination. Battles rage as space fleets collide. Invaders clash against fortified enemy colonies. Yet the greatest danger is the impending annihilation foretold by an apocalyptic prophecy.
Bit Odyssey$4.99
Encounter alien races and exotic locations as you travel in an endlessly procedurally generated galaxy. No two game are the same. As you explore, randomly generated “Episodes” will have you fighting hostile ships, helping aliens and exploring the surface of new planets.
Starless$7.99
In Starless, navigate a space Ark infested with terrifying monsters in this stealth-action game inspired by classic sci-fi. Can you help the colonists survive, or will they be doomed to roam the endless void of space forever?
Unknown Signal$39.99
Unknown Signal is a 3D adventure game. You have received a mysterious signal and you have to find out what or who sent it.
AstroGenesis$1.99
Dynamic game in the genre of Bullet hell. Destroy your enemies dodging the hail of bullets!
DIG - Deep In Galaxies$9.99
Free the galaxies in this action platformer! Jump, swing, dig and shoot your way through uncharted planets. Give hell to the Overlord's forces and face alien foes. Earn rewards after every battle and add them to your ever-growing arsenal.
Firelight Fantasy: Resistance$11.99
Firelight Fantasy: Resistance is a spectacular third-person sword fighting game
The Unknown$2.99
Aboard a small spaceship, you embark on an exploration, daring to face the threats of the universe. Activate your spaceship and uncover the hidden secrets of this vast cosmos.
Dungeons and Robots$8.99
Dungeons & Robots is an Action Shooter RPG where players explore futuristic dungeons and collaborate to fight, conquer and dominate. Features include, fast-paced combat; solo missions, 1-4 player co-op and guilds; crafting; customizable characters, weapons and armour; and procedurally generated content.
Coreupt$24.99
Unleash your powers, choose your destiny, and fight! Jump into an over-the-top struggle for the fate of the universe - master insane combos, obliterate other players online, and top the leaderboards in this fast-paced fighting game.
Claire de Lune$39.99
Claire de Lune is a story-driven puzzle adventure game set in a grounded science fiction universe.
The Desolate HopeFREE
On a distant edge of an unknown planet, an abandoned structure sits in silence. Constructed by an unmanned research vessel sent from Earth, the Lun Infinus station was designed to run simulations for a five year period, exploring possibilities of human colonization in the case that Earth became uninhabitable.
Iron Soul$4.99
Discovery of a new Goldilocks planet has led to the creation of a new type of army: One that is made of metal and steel. One that can’t feel pain or fear. One that is said to be our only hope against a possible alien invasion.
Potentia$19.99
Third person shooter action adventure game with post-apocalyptic theme. Witness the adventures of Victor and his friends in this abandoned world.
Starcom: Nexus$19.99
Suddenly thrown into an unknown galaxy, you must explore, fight or befriend aliens and transform your ship from a small survey vessel into a powerful battlecruiser to unravel the mystery of the forces that brought you here and find your way home.
Subnautica: Below Zero$29.99
Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.
Sunkenland$19.99
Get ready for a Waterworld-themed survival game with modular base building, sunken city scavenging, crafting, base defense, and invasions of NPC clans for resources and territory. Ready for the water apocalypse?
Battery Hunter$0.99
"Battery Hunter" is a 2D pixel-art style linear level game where player must ensure their ability to defeat the final boss.
Entity OnboardFREE
In this sci-fi survival horror game, you'll use tools such as a flashlight and tape recorder to survive while a mysterious entity chases you. Hide in the light and don't let it touch you. Power up each floor to escape!
Ven VR Adventure$29.99
Ven VR Adventure is a single-player VR platform game. You happen to meet Ven on his unknown planet, invaded by Bruce Nelson, who wants to destroy the magical world.
POWERNAUT DECAY$2.99
A tough exploration-based platformer with souls-like elements.
Planetaries$19.99
Experience a vast Sci-fi open-world survival TD game set on a distant planet deep in the universe. Craft, build, mine, trade, explore, and survive in this alien world. Collect Data and defend against waves of enemies seeking to banish you. Enjoy the adventure in Singleplayer or Multiplayer.
Kronostasis$9.99
A fast-paced FPS following a sci-fi story taking inspiration from Greek mythology and blending it with fantasy elements. As a security robot aboard a deep space mining vessel, you must face an unknown threat when crewmembers start turning into creatures of ancient myth.
Silent Breach$4.99
A short cosmic horror game where you remotely operate a land rover through an unknown planet labeled the silent zone.
RawbotsFREE
A universe where you can play with amazing robots that are designed, built and even programmed by you.
J.U.L.I.A.: Among the Stars$19.99
J.U.L.I.A.: Among the Stars is an innovative narrative driven adventure game. The story centers on Rachel Manners, a 35 year old astrobiologist. She is a member of an elite group of scientists, chosen to embark on one of the most critical missions ever conceived on Earth. Now Rachel is alone, orbiting an unknown planet.
Riverhill Trials$0.99
Riverhill Trials is a first person, 3D PLATFORMER ADVENTURE with a dynamic environment. Fly your Space Ship, land on the strange planet and overcome its challenges: moving platforms, falling asteroids, traps and alien structures - you will be tested.