Top similar games like Save the Planet:
Save the Planet $4.99
Protect your planet from alien attacks by controlling an orbital platform in this space arcade game. And if you get bored - turn on the "silent mode" and enjoy this hell! Score points, upgrade your weapons, compete with your friends, and become the best!
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Kly-Kly$4.99
help the magical creature named Kly-Kly defeat 4 monsters
Stop Them All$2.99
A minimalist sci-fi tower defense. Buy soldiers and upgrade them, defeat waves of enemies, hold your lines.
Plague Inc: Evolved$14.99
Plague Inc: Evolved is a unique mix of high strategy and terrifyingly realistic simulation. Your pathogen has just infected 'Patient Zero' - now you must bring about the end of human history by evolving a deadly, global Plague whilst adapting against everything humanity can do to defend itself.
The Ranger: A Skyhopper Tale$3.99
Hunt down and kill twisted woodland creatures in this roguelite focused purely on the tactical side of combat. No gear, no min-maxing, just you and a ton of enemies. Each boss you defeat earns you an ability sapped from them.
Skylight$14.99
Skylight is a turn-based tactics game of colossal space battles, with VR and non-VR versions. Command nimble squadrons of fighters, specialized frigates, and giant capital ships as you orchestrate your forces toward victory.
UFO Stalker$5.99
UFO Stalker is a 2D grid-based, single-player & single-character dungeon crawler RPG with elements of stealth. Figure out alien technology and understand reasons of your capturing.
Plan AFREE
Carefully plan your team's tactics in close quarters battles. Use the timeline to synchronize each door breach, grenade throw and room entry with precision. Watch your team execute your plan autonomously in epic cinematic replays. Take on challenging roguelike campaigns or standalone missions.
Anx Defense$9.99
Defend your Nexus by placing mirrors and buildings on the path of your projectiles. Deflect, empower, manage and solve each map using your creative and strategic mind.
MarZ: Tactical Base Defense$21.99
Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.
Tep The Destroyer TDFREE
TEP the destroyer is a single player tower defense game where you will face alien monsters and ships in ground and space battles! Your strategy will decide the fate of your people in a sci-fi environment of varying difficulties!
Super Mutant Alien Assault$9.99
The Citizen Kane of Super Crate Box clones - dance with death through randomised rooms to clear your space freighter of irradiated aliens in a brutal arcade platformer shooter stuffed to the brim with unlockable weapons, explosives, special abilities and defense moves.
AI War: Fleet Command$9.99
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
Spaceland: Sci-Fi Indie Tactics$19.99
Incredibly dynamic turn-based strategy, reviving the traditions of the old school tactics. Lead a team of the most desperate fighters, destroy alien monsters and uncover the secrets of the lost planet.
Shortest Trip to Earth$25.99
Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat.
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!
Kuiper Belt Survivor$9.99
Kuiper belt survivor is an arcade style bullet heaven, where every run is endless. It brings a unique spin to the bullet heaven genre by making every part of the players weapon arsenal customizable with well over 10,000 unique weapons to build, and unique stats for every enemy.
Jumper Starman$1.99
A Difficult Game. Jumper Starman is a Classic Platform Game. A Pixel Art Game for the best players.
Regain Earth: First Strike$12.99
Take the challenge of surviving waves of increasingly difficult evil MuTecs! Grab a friend to hunt and slay them. Crush each wave with randomly dropped weapons & gadgets. Earn Achievements, new maps and top ranks in this Community-driven, solo-dev project. Help shape the future of this game!
Faith & Shield:4044 Tower Defense$4.99
Faith & Shield: 4044 Tower Defense game, where you protect the human settlement from the incoming invaders, robots and other creatures, never seen before on our planet.
Alien Shooter 2 - New Era$9.99
A desert, an abandoned city, cramped underground corridors of MAGMAs research centers, and for hundreds of kilometers around there is only darkness and thousands of monsters coming from all sides. You have only two options - to achieve your goal or die.
Yury$1.99
For those of you who cannot live without old-style hardcore platformer challenges, Yury brings the ultimate spikes-lava-monsters experience.
Capsized$9.99
Capsized is a fast paced 2D platformer focused on intense action and exploration. As a intrepid space traveler, your ship has crash landed on a mysterious alien planet. You must navigate through the perilous environment and fight off blood-thirsty creatures to save your crewmates and escape with your lives!
Cargo Commander$4.99
Alone in space, light years away from your family, armed with only your Fistcannon™; you are Cargo Corps' latest recruit, a Cargo Commander.
Fragmented$9.99
Stranded in a hostile alien world, you must fight to survive. Hunt, harvest, craft, advance skills, and build using local resources along with technology from your voyage.
Fate of the World$9.99
Fate of the World is a dramatic global strategy game that puts all our futures in your hands. The game features a dramatic set of scenarios based on the latest science covering the next two centuries. You must manage a balancing act of protecting the Earth’s resources and climate versus the needs of an ever-growing world population, who...
Dead Effect$4.99
Fight for your life in the INDIE SCI-FI FPS game fit for both casual and hard-core gamers with a passion for hunting down hordes of zombies. Prepare yourselves for the incoming nightmare!
Destination SolFREE
Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter!
The BalconyFREE
'The Balcony' is a challenging, yet satisfying physics based game. The game consists of two game types; the campaign and the zombie mode.
Freedom Planet$14.99
Fight your way across the celestial world of Avalice where cats are green, motorcycles drive up walls and monster girls do most of the buttkicking! Freedom Planet is a cartoony, combat-based platform adventure that pits a spunky dragonoid and her friends against an alien attack force.
Vacuum$1.99
A 3D first-person shooter in which, by chance, an astronaut gets inside the Earth's Moon satellite teeming with various alien creatures. Survive under the intense music in the style of METAL!
Risk of Rain (2013)$9.99
Risk of Rain is an action platformer with roguelike elements. With permanent death as a primary feature, players will have to play their best to get as far as possible. Fight on a mysterious planet with randomly spawning enemies and bosses, either alone or with 3 friends in online co-op.
Throbax TDFREE
Throbax TD is the "Tower Defense" game you are looking for: Help Ughlar fight his way through 50 levels, buy over 100 upgrades and get all of the 50+ achievements.
The Echoes of Mars$4.99
The Echoes of Mars is a voxel-style tower defence game. Defend your research base on Mars from ancient creatures by strategically placing towers and using advanced tech.
Zombie Night Terror$12.99
Prepare yourself for the most thrilling night of your life! Something strange has happened and people everywhere are turning into blood thirsty walking corpses. But guess who’s the brains behind this hungry undead army? YOU! So spread this pandemic and wipe humanity off the planet.
Project: Cow$1.99
An extremely difficult strategy game focused on stealth mode. Your objective is to lead the cows on their escape through the spaceship. Go from hiding to hiding so as not to be seen by the aliens and be patient with the granny cow. Are you qualified to fulfill this mission?
Keyboard SoldierFREE
A fast-paced action-survival game where you fend off hordes of zombies by typing words, level up to unlock powerful items, and strategize to survive as long as possible in an ever-challenging environment.
Space Horde Attack$6.99
Collect weapons and destroy enemy ships
Shooting Blaster Big Bang Boom$4.99
Are you gonna shoot? YES! Are you gonna blast? YES! Are you gonna make a big bang? YES! Are you gonna make a big boom? YES! So what do you get? Shooting Blaster Big Bang Boom! Come have some fun, it's Good Time time!
Teleglitch: Die More Edition$12.99
In a cold, dark future dominated by mega-corporations, a small lonely planet on the edge of habitable space is the site of a shadowy research facility specializing in necrotic tissue reactivation. You are a scientist who has suddenly awoken to the realization that you are the lone survivor.
Blastocitos$4.99
To start the game, select a level from the suggested ones. Start your journey and defeat the boss to go further.
Exo TD$19.99
Exo TD is a true 3D space Tower Defense. Invaders have scouted your planet as their next target, you must protect it by building destructive turrets, orbital defenses, shields, drones and more to defend against the incoming invasion force.
DwarfenderFREE
Dwarfender is an action-strategy fantasy game in third person, set traps to repel waves of angry golems ! Take control of Rigolain, a dwarf-engineer, ready for anything in the heat of battle !
Alien Shooter TD$9.99
Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!
Ace of Space$3.99
You and your spaceship versus thousands of aliens! Blast through waves of aliens with upgradable spaceships in this sci-fi shoot ’em up game and become the Ace of Space!
Bing Bong XL$0.99
Bing Bong XL is the first of three games in my minimalist arcade series that share aesthetics while having different control and game play. It is an addictive 'just-one-more-round' score chaser, perfect for playing while waiting in queue for another game.
Pivot XL$0.99
Pivot XL is the second of three games in my minimalist arcade series that share aesthetics while having different control and game play. It is an addictive 'just-one-more-round' score chaser, perfect for playing while waiting in queue for another game.
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.
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.
Star Farmer: PrologueFREE
In this bullet heaven, farming adventure, play as a powerful Warlock who has a side hustle harvesting plants in space.
Cosmic Invasion$4.99
Cosmic Invasion is a combination of strategy mixed in with quick frantic battles against fleets that contain many ships. The strategic layer is a 20 X 30 grid with 600 sectors. Move your ships around to protect your home planet and space stations from the invading fleets of UFO ships.
ArcaneOutpost$4.99
A strategy game that combines MOBA and Tower Defence, You would control guardians with different skills，building your outpost to fend off enemy attacks.