Top similar games like STE : Save The Earth:
STE : Save The Earth $2.99
An alien invasion has come! As the supreme general of the armed forces of the earth, your mission will be to gather an army and put an end to the threat. Make your way through one of the most complex clicker games out there and crown yourself as The Supreme Defender!
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Duck Life 6: Space$3.99
Prepare to go galactic in the biggest Duck Life adventure ever! Train up in running, flying, swimming, climbing, jumping and intelligence so you can race your way across the universe to get back your crown! Explore exotic worlds to find new training mini games and wacky duck aliens to race.
Femdemic - An Idle World Feminization Game$14.99
Lead an alien bacterial race that induces male to female body transformations, one cell at a time. But as the women embrace their bodies, the politicians close in… Femdemic is a witty, trans-affirming idle clicker with two story paths that explore gender, happiness, and femininity.
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.
Under Domain - Alien Invasion Simulator$5.99
Under Domain - Alien Invasion Simulator will surprise you with a Sci-fi turn-based game completely different from others. How about turning yourself into an Alien and planning an invasion to Planet Earth? You can secretly influence human history and build war machines to exterminate human beings.
The Universim$29.99
Jump straight into managing your own planets as you guide a civilization through the ages. Build the ultimate empire in The Universim, a new breed of God Game in development by Crytivo.
Kittypocalypse - Ungoggled$9.99
Kittypocalypse is an in-depth, strategic tower defense game. Across a diverse range of environments, defeat the hordes of evil alien kitties and salvage what's left of your home planet.
Kittypocalypse$14.99
Kittypocalypse is an in-depth, strategic tower defense game built exclusively for VR. Across a diverse range of environments, defeat the hordes of evil alien kitties and salvage what's left of your home planet
Raging Titan$4.99
Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!
Hero or Villain: Battle Royale$6.99
Battle enhanced aliens in a gladiatorial contest to become the galaxy's champion!
Trap for Winners$7.99
A gripping sci-fi interactive thriller that lets you shape your own character and his morality. YOU make the choices – and suffer the consequences!
FACEMINER$7.99
Build a biometric data harvesting empire from scratch in FACEMINER, the hardcore thriller clicker set in 1999. Classify data, upgrade mining infrastructure, and scale up your A.I. surveillance empire to obscene ends in this creepy narrative-driven incremental management sim with a dystopian twist.
RECOG The First Wave$24.99
RECOG The Game is truly challenging and strategically entertaining. Build and defend your industry from an enemy who knows you more than you know yourself. Plan each step wisely, for all decisions you make directly impact what’s to come. Be prepared, for you are now entering THE RECOG!
ReFactory$11.99
Build, explore, fight! ReFactory is a 2D strategy game with a focus on construction and logistics where you build an automated mega-factory on an alien planet.
2023: Alien Bugs Invade EarthFREE
Why are alien insectoids invading Earth in 2023? This narrative driven 2D shooter pits you against a seemingly hopeless battle against the invading Insectoids. How will you (and Earth) manage to survive? What hidden technological, historical, and spiritual secrets will you discover as a result?
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.
Destination Primus Vita - Ep. 1FREE
Destination Primus Vita is a narrative, first-person and episodic puzzle game set in a science-fiction universe. Follow the adventures of our main six characters: Austin, Hayao, Artemis, BrX, Geny and Coby as they travel across the cosmos to Primus Vita to complete their vital mission… to save life on Earth!
_OUR_:_Defense 2021$4.99
Is a dynamic tower defense game. You must react and counterattack the enemies on the battlefield all the time. Fight off alien swarm attacks with gigantic machine guns, shotguns, gauss rifles and even a giant laser created using alien technology.
Flyhunter Origins$3.99
Meet Zak; a bumbling alien spaceship Janitor and wannabe Flyhunter. He works on board the Flyhunter Crew’s legendary spaceship, but deep down he longs for an exciting adventure of his own
The Sandbox$4.99
READY FOR CRAFTING VIRTUAL WORLDS ON YOUR PC?The acclaimed world-building game featuring a unique mission-based approach is coming onto PC via Steam Early Access. With over 16 million players on mobile & tablets versions and 1,500,000 pixel blocks creations shared in the Online Gallery to date, this PC version is taking world...
U.F.O. K.O. Tower Defense$1.99
U.F.O. K.O. Tower Defense: Place lasers, missile launchers, sniper turrets, and use combat strategies such as airstrikes and the space ray to repel waves of alien invaders in this sci-fi tower defense game.
Invader TD$2.99
Invader TD is a side scroller tower defense, where the player is in the role of an alien race with the purpose of infecting and dominating the earth, you must protect yourself from the attacks of the humans, who are trying to destroy you.
GearStorm - Armored Survival$11.99
GearStorm - Armored Survival is a story-driven, open-world sci-fi survival adventure. Discover what led to the Phage, a deadly virus apocalypse and our escape to a alien world. Explore a vast alien planet, build your base, create your colony, acquire vehicles, weapons, and supplies to defend it.
Alien Paradise$5.99
Help an extraterrestrial being to enjoy their staying on Planet Earth in this rhythm game.
UFO vs Bikini$8.99
Act as an alien driving a UFO and collect materials to upgrade the spacecraft. Kidnap bikini girls, extract purple energy, and study the function of purple energy. Avoid human attacks, strengthen the defense of spacecraft and alien technology.
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.
Psi Academy: OrientationFREE
Finding love in a psychic high school.
Stay Home It Rains Outside$2.99
Your digital refuge at the Alpha Centauri settlement. Visit whenever things aren't going well. This is a productivity tool with game elements. Customize your second body, gather fluffy creatures, and tackle real-life tasks using built-in productivity features.
Xeno Runners$4.99
Looking fo a challenge? Fly fast. Die a lot. Race against the timer. Master a bunch of racing tracks. Fly faster. Die a bit less. Set the fastest time. Be the best “Runner” on a planet that’s clearly not Earth… Or just enjoy a relaxing sunset while experiencing the freedom of flight.
Chamber 19$14.99
Pilot a drone to shoot enemies and dodge patterns of bullets. Fight bosses and get powerups that enable some crazy action! Can you pass the Human Intelligence Test in your Chamber?
Spaceteam VR$12.99
A chaotic, cooperative party game! Shout technobabble at your friends until your spaceship inevitably explodes. Attempt to follow randomly generated, incorrectly assigned instructions. Work together… as a Spaceteam!
Galactic Missile Defense$1.99
Galactic Missile Defense is a shooter and tower defense game, where you must protect Earth from the invading Martians that declared war on our planet just because a space rover accidentally ruined their picnic!
Food Poppers$1.99
A Cutely drawn clicker game.
Monster Crush - C4 Demolition Edition$0.99
MONSTER CRUSH C4 DEMOLITION EDITION is the long awaited HD remake from the hit game. This version was build for PC from the ground up, with new and improved graphics and includes all the bonus levels! A physics based puzzle game that puts you in the role of a demolition expert.
Home Domes$14.99
Explore this life sim on a new planet. Create your new home on the rugged surface of Mars during the early days of colonization inside the safety of your new Dome. Everyday life on a new planet has new challenges and more difficulties of surviving out on the Domestead.
Starion Tactics$9.99
After assuming command of one of four human or alien factions vying for galactic dominance, immediately define your game’s scope. Play for minutes to hours across tens to hundreds of planets in single-player skirmish or multiplayer modes—it’s entirely up to you.
Industrial Petting$19.99
Industrial Petting is a cozy factory game about building an adoption empire of adorable pets! Play with friends or solo. Build happy pet pipelines, explore and farm an alien island, and fulfill adoption contracts from across the galaxy!
Epic Astro Story$8.99
Battle baddies and foster interplanetary diplomacy in an epic space colony sim!
Blob Life$5.99
This Cute Sidescroller RPG is all about taking care of little aliens called blobs! Give them unique names, check their vitals, build colorful houses, play and feed them with a variety of sweets when you have all the time in the world.
Bitosphere$2.99
Embark on a Galactic Adventure in Bitosphere a Captivating 1-bit Clicker Game
FILFREE
Gallivant through the Solar System in a journey of stellar proportions in FIL to save the planets from destruction!
Yupi$2.99
Run, jump and collect coins .. Yupi has come to save us!
4X-Galaxy 无主之地：银河FREE
“4X-Galaxy” is a game developed by the 4X concept system(eXplore、eXpand、eXploit、eXterminate)
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.
CHAOTIC ERA$16.99
AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.
Space Squadron$1.99
Earth's last hope is in your hands, take control of the lone spaceship and protect Earth from alien swarms. Your goal will be quite challenging as you will have to save the Universe from its evil enemies.
Hamboy : AutoChess Survivor$3.99
Hamboy is a rogue-like arena shooting game where you fight against aliens by strategically combining 12 attributes and 10 types of weapons to create synergies. As the waves increase, you'll realize that you shouldn't spend gold recklessly.
Space industrial empire$5.99
This is a idle game modeled on industrial building gameplay. It will be three-dimensional, complex industrial assembly line, easy, simple plane conveyor belt. At the same time to join the battleship assembly, space campaign, character development, giant construction, trade orders and other gameplay!
Titans of Space PLUS$9.99
Just how big is big? Journey through this holographic Solar System, and then squint your eyes in the intense light of a few of the largest known stars. Enjoy various accidentally-educational activities along the way. Great care has been taken to ensure a comfortable VR experience. VR optional.
Tank 51$0.99
Tank 51 is an increasingly difficult retro styled fast pace shooter. Aliens have invaded planet earth and it is up to you the player to stop the alien invasion..in your tank.
KooringVR Wonderland:Red Queen's Black Magic$29.99
It’s time to go to the “Wonderland”, the world of adventure!"Kooring Wonderland VR Red Queen's Black Magic" is the VR contents for the blockbuster family It tells the story of 12 adventuresThe fairytale-like storytelling gives the feeling of watching an animation. KOORING Forever!
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.