Top similar games like UFO: Extraterrestrials Platinum:
UFO: Extraterrestrials Platinum $19.99
UFO: Extraterrestrials PLATINUM is a new edition that includes a number of enhancements that give the player a new perspective on the classic game: new alien species, heavy weapon platforms, heavy mortar, crash site bombardment, unique items, UFO swarms and configurability.
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Invasion: Neo Earth$8.99
Retro turn-based strategy in a sci-fi world of sinister alien invaders. Take command of troops, tanks and aircraft as you position your units for the perfect strike or unbreakable defense. Plot the course of humanity's war against the insidious Sectyd by choosing which missions to fight.
X-Morph: Defense$19.99
Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.
The 8 Sins: New Hell Order$10.99
Creepy turn-based strategy game with RPG elements where the action takes place in hell. Choose a faction based on 7 deadly sins, Create an army from various classes of creatures, expand your towns, explore the map, upgrade your troops, plunder, and fight. LTS
Project Astra Dominium$9.99
Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements. Build up your base to become a supply hub for Earth's desperately needed materials, gather resources while defending against an unknown alien threat and improve your tower's and AI capabilities.
Zombotron$14.99
Fight to survive on a mysterious alien planet, outwit its vicious inhabitants, and do whatever it takes to find a way off that wretched rock.
Alien Hallway$4.99
Players measure stamina with a never-ending stream of green creatures within the borders of a special military mission.
Attack of the Earthlings$14.99
Take on Galactoil, a comically dysfunctional intergalactic energy corporation, and its larger-than-life employees in a tactical-stealth game that fuses satisfying strategic gameplay and dark comedy in a quirky single-player story.
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.
_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.
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.
Godlike Burger$19.99
In Godlike Burger you run the craziest restaurant of the galaxy! Stun, poison and kill customers in many devious ways… and turn them into burger meat! And don’t worry: Alien customers will keep coming if you are smart about it, because cannibalism is just too damn tasty.
Void Marauders$11.99
Lead a band of space pirates and loot and pillage your way across the stars in this turn based tactical game!
Colonization Simulator$9.99
Colonize rich planets with vegetation or deserted moons. Build a functional and prosperous colony. Take care of your colonists. Experience adventures on distant worlds or build a colony on planets in our solar system.
Galactic Ruler$19.99
Galactic Ruler offers real time strategy game play at both planetary level and in space! Lead your faction in diplomacy or conquest across a procedurally generated galactic map where any system might hold hostile enemies or resource riches. Develop advanced technologies to rule the galaxy!
Space Colonizers Idle Clicker$2.99
Space Colonizers is a simulation and strategy idle game of Sci-Fi adventure theme. To explore more planets and meet cute aliens, you have to constantly install parts and upgrade spacecraft.
Space Court$2.99
As a newly appointed Judge, you will rule over Space Court and its denizens to keep the universe safe. Or possibly blow it all up. Either way, you’re tenured.
Space Station Sprint$9.99
Space Station Sprint is fast paced sci-fi first person shooter. Infiltrate each space station and complete your objective before your escape ship is spotted by the enemy. Use special abilities, find permanent upgrades, time bonuses, collectibles, and secrets throughout each space station.
Microcosmum 2$14.99
A relaxing strategy game featuring unconventional gameplay. Your objectives include development, evolution, border expansion and protection of your hive.
Starcom: Unknown Space$24.99
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
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.
XenoTown$1.99
A small RPG where you play as an alien in disguise, on a mission to brainwash the humans of Earth, one person at a time. Join up with an Earth child and a germaphobic toilet on your quest to control the planet!
Planetary Defense: An Orbital Turret Defense System$1.99
2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.
CHAOTIC ERA$16.99
AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.
Xenonauts$24.99
Xenonauts is a strategy game in which you control a multi-national military organisation defending a Cold War-era Earth from alien invasion, using small squads of persistent soldiers to eliminate the extraterrestrials and recover their technology in turn-based ground combat.
Looking for Aliens$7.99
Aliens are among us! Can you find traces of them on Earth, the moon, and the edges of the galaxy? Find all the clues to prove the existence of alien civilizations and discover how making fried eggs can end up in a monster attack!
Project HunterFREE
Stealth and tactic game that give you the control of an alien that evolves, adquire new abilities and face levels in various ways.
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.
Cosmic Gunslinger: Alien Outlaws$2.99
Cosmic Gunslinger: Alien Outlaws is a pulse-pounding single-player video game where you, as the gunslinger cowboy Cosmo, and your trusty canine companion, must survive relentless waves of Aliens. Upgrade your weapons, collect crucial items. Can you outdraw and outlast the alien threat?
Diaries of a Spaceport Janitor$9.99
Diaries of a Spaceport Janitor is an anti-adventure game about picking up trash in an alien bazaar. Play as the Janitor, an Alaensee girlbeast with a municipally-subsidized trash incineration job and dreams of leaving the planet of Xabran's Rock far behind her.
Star Merc$1.99
Star Merc is an open world rpg where player choices heavily affect outcomes and drastically change the storyline. The game is about exploring different planets, learning about the inhabitants and dealing with the different factions that like to think they control the universe.
Let Them Come$7.99
Let Them Come is a fast paced pixel art shoot ‘em up. Twitchy trigger fingers and focused battle tactics are the order of the day as wave after wave of alien-like creatures try to take you down.
Strain Tactics$14.99
Strain Tactics is a real-time-with-pause tactical game, where you command a squad of soldiers to liberate earth from an alien infestation. Using your helibase, deploy your custom squad and provide air support. Remember to keep your crew sane and motivated while staying clear of alien contamination!
HIVESWAP: ACT 1$7.99
A hand-drawn tribute to hilarious '90s adventure games (with none of the accompanying frustration). Play as Joey Claire, a puzzle-solving teen snatched out of her time (1994) and place (Earth) and stranded on a hostile alien planet on the brink of rebellion.
Spaceship Survivors$0.99
Spaceship Survivors is an anime-style arena survivor roguelike where you play in space to fight against loads of alien spaceships. Create unique builds to survive and kill the final boss, or go for an endless run. You can unlock 33 playable spaceships.
Deep Nest$4.99
Deep Nest is a fast-paced single player action shooter roguelite where you play a space marine fighting off an endless horde of alien monsters in an infested facility.
Geneforge 2 - Infestation$19.99
Wildly open-ended adventure in a unique fantasy world. Use battle or diplomacy and trickery to change the world, served by an army of custom-made mutant monsters. Almost 90 zones to explore and 50+ hours of gameplay. Enormous range of abilities, factions, quests, and paths to victory.
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.
Netherguild$9.99
Netherguild is a turn-based roguelite dungeon-crawler on a grid, where you command expeditions below the earth in a desperate attempt to cure a strange plague. Explore, camp, and fight as far as you can before heading back to resupply. What will you discover underground?
Alien Shooter$4.99
The endless darkness and the somber, long passages of a military complex have become the abode of evil, thousands of blood-thirsty creatures fill its offices, storehouses and mysterious laboratories. About 1,000 monsters on each map, showing up to 100 monsters simultaneously on one playing screen.
Anomaly: Warzone Earth$9.99
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
Infested Planet$14.99
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
Weird Worlds: Return to Infinite Space$4.99
Weird Worlds: Return to Infinite Space is a hybrid roguelike game of space exploration, adventure and starship combat.
Super Sanctum TD$4.99
Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!
Get Off My Lawn!FREE
They came in peace, but messed with the wrong old man. Armed with a musket, 78 year old Murray Mendelson has single-handedly started an interstellar war. Shoot first and ask questions later in this endless fast paced arcade shooter. Use everything in Murray’s arsenal to keep the aliens off of his perfectly manicured lawn!
Shattered Planet$14.99
Explore a dangerous planet that's different every time and try to survive! The Galactic Union's job for you is clear: research the alien wildlife -- for science! However, in this case, researching may include lasers, explosions, hungry aliens, space sushi, and other similarly delicious-or-terrifying hazards.
Solar War$4.99
A turn-based grand strategy game in space, set in the near future: Defend Earth against an alien invasion from the edge of the Solar System and expand your campaign to push them back to their base.
Eden RisingFREE
Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal to defend your bases and defeat hordes of hostile monsters. Play solo or up to 8-player online!
UFHO2FREE
Play an alien navigating a maze of hexagons in this competitive mix between strategy and board game. Plan your next turn, think fast, act faster, and outmanoeuvre your opponents by predicting their moves. UFHO2 is strategy at its finest.
Notrium$1.99
You have crash-landed on Notrium. Your food supplies are running low, and a pack of predatory aliens have your scent. You're out of bullets for your pistol, your only weapon a handful of rocks. A freezing night is setting in, and you are desperately looking for firewood. Can you survive?
The Deadly Tower of Monsters$14.99
Fire up your ray guns, crystal swords, and laser whips, and get ready for thrills and chills! With three incredible movie stars playing out decidedly B-level sci-fi exploits, Dick Starspeed, Scarlet Nova, and Robot will have you ready to jump off the side of the tower—right into adventure!
Waddle Home$4.99
The Penguins are trapped and they need your help! Guide them to the Rescue Ship by opening doors and moving blocks, while making sure to help them waddle around traps and escape patrolling guards!