- #1 Unearthing Invasions
97% match5 user reviews100% of 5 reviews2024
Dev: Aquarius Max
Windows · Mac · Linux
A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?
Why similar: Tower Defense 31.5%, Aliens 15.4%, Arcade 13.3%, Space 9.4%, Action 7.6%
- #2 Swarming Planet
96% match7 user reviews57% of 7 reviews2021
Dev: RedZyrro
Windows
Build towers and learn abilities to defend against swarms of hundreds of on-screen hostile alien creatures. Choose between sets of randomized upgrades that both upgrade you and the alien swarm. From enormous explosions to far-reaching flamethrowers, no two games are the same.
Why similar: Tower Defense 27.3%, Aliens 19.7%, Arcade 11.6%, Base Building 10.2%, Building 9.4%
- #3 Crazy Mob
96% match3 user reviews67% of 3 reviews2017
Dev: CoolGameZPub: CoozGameZ
Windows
Crazy Mob is 2 GAMES IN 1: DEFENSE AND RUNER WITH MONSTERS THAT MAY GO ON THE CEILING!
Why similar: Tower Defense 37.6%, Action 22.3%, Adventure 20.9%, Casual 19.1%
- #4 Volcan Defend the Tower
95% matchMostly Negative35% of 23 reviews2019
Dev: Processor Game Studio
Windows
A solo development and the first game of Processor Game Studios presents "VOLCAN defend the Tower". A third person shooter on an open world sci-fi game, play as Sollum to defend your Volcan Towers against your enemies while exploring a planet earth with nature restored
Why similar: Tower Defense 26.7%, Aliens 20.8%, Action 16.6%, Casual 14.2%, Adventure 12.7%
- #5 Unstoppable Gorg
94% matchMostly Positive79% of 306 reviews2012
Dev: Futuremark
Windows · Mac
Median: 36 minMean: 6.3 hrs≥1hr: 40%
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Why similar: Tower Defense 64.1%, Aliens 10%, Action 8%, Casual 7.3%, Sci-fi 6.3%
- #6 Bumper Blitz TD
94% matchNo user reviews
Dev: Ragnarok StudiosPub: Mad Data Games
Windows · Mac · Linux
Bumper Blitz TD redefines tower defense with gravity-powered physics and dynamic gameplay. Build, upgrade, and bounce enemies away in this thrilling fusion of strategy and action!
Why similar: Tower Defense 45.4%, Aliens 19%, Action 12.7%, Casual 11.2%, Space 9.3%
- #7 Moot District
93% matchMostly Negative36% of 22 reviews2019
Dev: BratAndronikPub: Uberbax Gaming
Windows
Build and defend! Make Moot District yours!
Why similar: Tower Defense 48.4%, Action 19%, Casual 16.4%, Adventure 16.2%
- #8 Forest Of Siege
91% match5 user reviews60% of 5 reviews2025
Dev: Rawi Studio
Windows
A tower defense game set in a magical forest. Watch out for the orcs!
Why similar: Tower Defense 47.4%, Action 25.3%, Base Building 18%, Adventure 8.1%, Singleplayer 1.2%
- #9 Boot the Beet
91% matchNo user reviews2026
Dev: Renderville Games
Windows
Boot the Beet is a high-impact arcade brawler where the only thing between your harvest and a swarm of hungry aliens is a heavy steel toe. Forget guns and magic—this is about the raw stopping power of a well-placed kick.
Why similar: Tower Defense 36.7%, Aliens 17.9%, Arcade 17.6%, Action 13.8%, 3D 6.5%
- #10 Bug N Out
92% match4 user reviews50% of 4 reviews2016
Dev: Neuron GamesPub: © 2016 Alternative Software Ltd.
Windows
Bug N Out is a coin-op style action arcade game that will bring you hours of non-stop action. No loading, no save games, just sit down and unleash your inner aggression defending the colonies of Earth from the onslaught of the insect horde!
Why similar: Aliens 34.3%, Action 28.7%, Casual 23.5%, Sci-fi 13.6%
- #11 Galaxy Defenders (Classic TD)
90% matchNo user reviews100% of 1 reviews2025
Dev: Galaxy Developer
Windows
A classic tower defense game set in space! Build and upgrade towers, defend your portal from waves of alien invaders, and outsmart evolving threats across handcrafted and procedural maps.
Why similar: Tower Defense 35.8%, Arcade 15%, Casual 14.5%, Aliens 12.7%, Space 11.1%
- #12 Ezaron Defense
89% matchVery Positive81% of 105 reviews2021
Dev: RVL Games
Windows
A classic 3D Tower Defense fantasy game, made by a very small and dedicated team.
Why similar: Tower Defense 50%, Action 14.2%, Adventure 13.3%, Casual 12.6%, Building 9.2%
- #13 Plaser
88% match6 user reviews83% of 6 reviews2026
Dev: Plaser
Windows
Plaser is an arcade shooter where you aim for the gaps between rotating asteroid belts to destroy planets. With auto-movement, use Dash and Attack to penetrate the debris shield and hit the core. Upgrade your Attack Power and Time Limit to extend your run and master the rhythm of destruction.
Why similar: Arcade 25.8%, Action 22.1%, Casual 18%, Space 13.3%, Score Attack 10.4%
- #14 Asterrunner
89% matchNo user reviews2020
Dev: Andrii Kozhevin
Windows
Travel through dangerous asteroid field, avoid obstacles and collect loot.
Why similar: Action 25.5%, Arcade 20.5%, Casual 19.9%, Space 13.5%, Sci-fi 11.7%
- #15 Pest Control
86% matchPositive81% of 16 reviews2022
Dev: Sarah Nuse
Windows
A fast paced garden defense game. Collect what you can before the pests take over!
Why similar: Tower Defense 31%, Aliens 20.9%, Arcade 14.4%, Space 10.2%, Casual 10%
- #16 Mystic Defense
87% match6 user reviews33% of 6 reviews2016
Dev: Mystified Games
Windows
Take control as a mage and unleash the four elements of Fire, Ice, Lightning and Earth to defend against the legions of waves and bosses aimed to destroy your castle. Do you have what it takes to defend the human race?
Why similar: Tower Defense 50.1%, Action 26.3%, Casual 23.6%
- #17 Glory Kingdom
86% match5 user reviews40% of 5 reviews2016
Dev: Matthew RobinsonPub: Simply Squared
Windows
Prepare for a new tower defence, with a classic low poly style. Challenge many savage enemies, warriors, and monsters. Travel across your Kingdoms, to numerous environments where you take up the quest to protect your Kingdom.
Why similar: Tower Defense 46.8%, Action 18.8%, Adventure 17.6%, Casual 16.9%
- #18 Wrecker II, The Wreckening
83% match3 user reviews100% of 3 reviews2025
Dev: Sleepless Inc.
Windows
Year 2425, humanity colonized the exoplanet named SACH-041840. But then, in the 55th year "they" came; No one knows who or what controls them, but what is known is that if they reach the colony proper, it will be annihilated. It is up to you to bring the WRECKONING upon them!
Why similar: Tower Defense 31.3%, Aliens 14%, Arcade 13.4%, Action 9.5%, Space 8.2%
- #19 Freedome Farmers
84% matchNo user reviews
Dev: Stupid industries
Windows · Linux
Freedome Farmers is a third person coop horde defense game with up to 4 players. You use the resources you have harvested to build defenses and weapons. At night, you defend against waves of alien possessed farm animals. Will you make it through 10 days ?
Why similar: Tower Defense 27.4%, Arcade 11.8%, Base Building 10.8%, Aliens 9.6%, Building 8.3%
- #20 I'm Titanium
85% match7 user reviews43% of 7 reviews2017
Dev: SGS Team
Windows
Median: 3.0 hrsMean: 3.4 hrs≥1hr: 95%
Survival, ship modification, base defense, boss battles and player leaderboards table all this awaits you in the game I'm Titanium.
Why similar: Tower Defense 33.1%, Action 30.8%, Adventure 18.4%, Casual 17.6%
- #21 Time to GOLF
84% matchPositive88% of 17 reviews2021
Dev: nattuhan
Windows · Mac
Time to GOLF is a golf climbing game conceived by an author who has never played golf before. You climb colorful mountains by hitting golf balls and jumping using only simple mouse controls.
Why similar: Action 34.3%, Adventure 28.5%, Casual 25.6%, 3D 9.9%, Singleplayer 1.7%
- #22 SPACE HOLE
81% match8 user reviews100% of 9 reviews2025
Dev: Fred WoodPub: Mokuzai Studio
Windows
Collect energy, grow your tail, and fill the SPACE HOLE in this bite sized arcade game.
Why similar: Arcade 24.6%, Score Attack 17.4%, Space 16%, Action 13.8%, Adventure 13.6%
- #23 Binary Barrier
82% matchNo user reviews
Dev: Upgraded Studio
Windows
Defend your AI capital against endless alien invasions in this space shmup-inspired tower defense with roguelite randomness. Dissect bodies and ships to unlock weirdly powerful tech. Upgrade your base with turrets, turning your screen into a symphony of perfect destruction!
Why similar: Tower Defense 28%, Aliens 19.5%, Base Building 12.3%, Arcade 8.3%, Sci-fi 8.2%
- #24 Ghost Villa
82% matchNo user reviews2026
Dev: Claudio Norori
Windows · Mac
A ghostly round based FPS with tower defense, roguelike, and farming elements. Survive the rapidly changing seasons, build up your farm during the day, by night you will fight endless hordes of ghosts that want to haunt and capture your home.
Why similar: Action 21.4%, Casual 17%, Building 14.4%, Base Building 10.1%, Tower Defense 9.4%
- #25 银河战争一(Galactic Wars One)
80% match1 user reviews100% of 1 reviews2024
Dev: hidden dragon独游
Windows
A tower defense strategy science fiction game, in the future era, when aliens invade the solar system, players need to build various turrets to resist alien attacks and guard the Milky Way and solar system.
Why similar: Tower Defense 42.5%, Aliens 17.5%, Casual 13.9%, Space 8.9%, Base Building 6.3%
- #26 Get Off My Lawn!
81% matchMostly Positive74% of 1,732 reviews2014
Dev: Digital Leisure Inc.
Windows
Median: 42 minMean: 10.1 hrs≥1hr: 42%
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!
Why similar: Tower Defense 39.3%, Aliens 24.3%, Casual 19.6%, Arcade 9.5%, Action 6.2%
- #27 小白的保卫战 Xiaobai's defense war
79% match9 user reviews100% of 9 reviews2023
Dev: 三条小飞鱼
Windows
This is a game where players need to defend every monster's attack. Beware that monsters can destroy the buildings of the camp. Players exchange gold coins by collecting food produced by planting plants and breeding animals. Keep improving the properties of the defense tower to protect your camp.
Why similar: Tower Defense 43.1%, Casual 23.3%, Building 19.3%, Base Building 12.6%, Singleplayer 1.7%
- #28 ChatTDT: Tower Defense Twitch
77% matchPositive90% of 20 reviews2024
Dev: Ayrton Alexis
Windows
Dive into the dynamic world of "ChatTDT: Tower Defense Twitch," where your Twitch chat becomes an integral part of the action! Designed to seamlessly integrate with the Twitch API, ChatTDT offers a unique and interactive tower defense experience that engages both streamers and viewers.
Why similar: Tower Defense 39.5%, Action 23.2%, Arcade 19.2%, Casual 18.1%
- #29 Beware Planet Earth
79% matchMostly Positive72% of 336 reviews2014
Dev: Lightmare StudioPub: Jumping Ram
Windows
Median: 4.2 hrsMean: 5.0 hrs≥1hr: 95%
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!
Why similar: Tower Defense 49.6%, Aliens 20%, Casual 8.3%, Arcade 7.7%, Sci-fi 6%
- #30 Poop Rocket
76% match6 user reviews83% of 6 reviews2025
Dev: Panda Drop GamesPub: Mira Toons LLC
Windows
Poop Rocket is a casual sci-fi 2D shooter game. Bomb your way through debris and aliens before the poop power meter runs out. Avoid the debris and aliens, or you'll take damage and die. The game is controlled with your keyboard. Use the arrows to navigate and the space bar to drop bombs.
Why similar: Action 24.8%, Casual 19.4%, Space 19.3%, Adventure 18.7%, Arcade 17.1%
- #31 Get Off My Space!
78% match2 user reviews0% of 2 reviews2022
Dev: Yasho Salamander
Windows
Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy. Combining strategy and micro-managing fire groups, you will overcome the hardest level objectives.
Why similar: Tower Defense 27%, Aliens 15.7%, Arcade 13%, Action 10.3%, Building 9.3%
- #32 Goblins!
77% match3 user reviews67% of 3 reviews2021
Dev: Polygon Dust Entertainment Ltd.
Windows
Build defenses and use your trusty catapult to stop the goblin horde from stealing your treasure.
Why similar: Tower Defense 37.3%, Action 20.3%, Arcade 18%, Building 10.4%, Base Building 7%
- #33 ポーラー エクスプローラー: 北極への VR そり遊び
76% matchNo user reviews2024
Dev: Thoth VR Health
Windows
This is a VR adventure type game in which you play as a brave pilot who drives a sleigh through a world full of icebergs and snow on a polar expedition.
Why similar: Casual 29.6%, Action 29.4%, Adventure 29.2%, 3D 10.1%, Singleplayer 1.7%
- #34 U.F.O. K.O. Tower Defense
75% match4 user reviews75% of 4 reviews2021
Dev: Pixel General LLC
Windows
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.
Why similar: Tower Defense 41.3%, Building 19.1%, Aliens 15.6%, Action 9.5%, Casual 7.3%
- #35 Cosmo story
78% matchNo user reviews2019
Dev: Konstantin SoliannikovPub: Tatiana Solyannikova
Windows
Help the hero stop the invasion of enemy invaders, and save the universe from destruction.
Why similar: Action 31.2%, Adventure 27.4%, Casual 25.9%, Arcade 15.5%
- #36 PixelJunk™ Monsters 2
75% matchMixed66% of 277 reviews2018
Dev: Q-Games Ltd.Pub: Spike Chunsoft Co., Ltd.
Windows
Median: 1.9 hrsMean: 11.2 hrs≥1hr: 59%
PixelJunk™ Monsters is back with the simple, yet highly strategic real-time tower defense gameplay gameplay of the original title, now with updated graphics and brand new multiplayer modes!
Why similar: Tower Defense 60.3%, Action 39.7%
- #37 Evening Star 2: Tide of Chaos
73% matchNo user reviews
Dev: Lucid Dreaming
Windows
Dark Fantasy Battle Arcade Chaos and Fun!
Why similar: Action 37.4%, Adventure 31.9%, Casual 30.7%
- #38 Call of Nightmare
74% matchNegative17% of 12 reviews2017
Dev: NightmaresGames
Windows
Deadly horrors fill the world. To survive in this demonic world, you have to kill everything that moves. You will visit different parts of the world, from ancient destroyed cities to forest fringes.
Why similar: Action 37.4%, Adventure 31.9%, Casual 30.7%
- #39 JETPACK WARRIOR VR
72% matchNo user reviews2018
Dev: BCCON Co., Ltd.
Windows
Save the Con City from confusion by the infected robots from the crisis. You become a special agent captain and infiltrate into the Con City with an artificial intelligence special agent B-CON.
Why similar: Action 35.7%, Adventure 33.6%, Casual 30.7%
- #40 Slime Quest
73% match8 user reviews75% of 8 reviews2018
Dev: CasGames
Windows
A colorful adventure of a small green slug in a fairy-tale country.
Why similar: Action 37.5%, Adventure 31.8%, Casual 30.7%
- #41 Atomic Adam: Episode 1
73% matchPositive82% of 17 reviews2017
Dev: Mad Unicorn Games
Windows
Rock star turned superhero, Atomic Adam is tasked with finding mayor Lamowitz's kidnapped wife before Delta City falls in to the hands of Deathbot. Do you have what it takes to save Delta City?
Why similar: Action 36.3%, Adventure 34%, Casual 29.7%
- #42 Mega Balls
72% match1 user reviews100% of 1 reviews2019
Dev: Pink Pad Productions
Windows
Mega Balls is a game of precision and persistence as you attempt to save your pal Good Boi! Navigate your ball through levels with unique layouts and obstacles all while being pulled down by the force of gravity.
Why similar: Action 36.9%, Adventure 32.4%, Casual 30.7%
- #43 Attack from Izar 2250
67% match1 user reviews100% of 1 reviews2026
Dev: Xayba
Windows
Alien attackers from the Izar system are invading Earth! Battle the extraterrestrial menace in endless waves in this tribute to classic alien 'invader' shooters from the late '70s and early '80s. Aim for the high score by destroying the evil alien monsters!
Why similar: Arcade 23.2%, Aliens 22.7%, Action 15.1%, Score Attack 14.1%, Space 9.7%
- #44 Jungle Defense
74% matchNo user reviews2019
Dev: mCoCoA
Windows
I came to the jungle to catch Igras. I want you to catch 10 Igrass. You have to use a variety of magic weapons.
Why similar: Action 37.4%, Adventure 31.9%, Casual 30.7%
- #45 Elephant Express XR
71% match3 user reviews0% of 3 reviews2016
Dev: Blob LabPub: Blob Group Ltd
Windows
Elephant Express - Fly around the jungle delivering mail and giving a taxi ride to your friends.Watch out for evil creatures, traps, explosives and other dangers! Fun and immersive Virtual Reality game! 75+ levels in 5 specially themed episodes, hours of game play!
Why similar: Action 35.7%, Adventure 33.6%, Casual 30.7%
- #46 VR Roller Coaster - Cave Depths
70% matchPositive81% of 16 reviews2017
Dev: ARLOOPA Inc.
Windows
Experience the crazy Roller Coaster ride in Cave Depths. This 3D roller coaster will blow your mind with an exciting environment with more than 2 min ride. We have an interactive part in the experience, where you are choosing the direction where to go with head movement. Get ready for limitless Virtual Reality, powered by ARLOOPA.
Why similar: Action 36.3%, Adventure 32.5%, Casual 31.2%
- #47 Trouble Travel TT
70% matchMixed67% of 30 reviews2019
Dev: PPC
Windows
An easy-to-play platformer-quest, invites the player to go through the hard way of a person who got lost in a nonexistent city. In which strange things happen. Solve riddles, keep up on time, run while you can. Perhaps you can get out.
Why similar: Action 36.3%, Adventure 32.5%, Casual 31.2%
- #48 The Ploshers
70% matchMostly Positive74% of 19 reviews2019
Dev: platypurplestudios
Windows
Frantic action and lots of fun. 1 or 2 players. Keyboard and Xbox controller or compatible. Casual look, hardcore gameplay. Demo available.
Why similar: Action 39.1%, Casual 30.6%, Adventure 30.3%
- #49 Sweet Thomas
69% matchMixed59% of 27 reviews2020
Dev: DnovelPub: Conglomerate 5
Windows
Bright and mysterious platformer in the world of the game Sweet Thomas.
Why similar: Action 35.5%, Adventure 33.4%, Casual 31.1%
- #50 Zerion 12
66% match1 user reviews100% of 1 reviews2025
Dev: Gray Mantis
Windows
A sci-fi tower defense game. Build an army of towers to stop waves of a lured alien species called Zektid's.
Why similar: Tower Defense 36%, Aliens 19.6%, Action 19.3%, Space 8.5%, Sci-fi 6.6%
- #51 GoWings Safari
71% match1 user reviews0% of 1 reviews2016
Dev: Blue Goji
Windows
Fly over the Safari, taking pictures of wildlife and capturing poachers with your net gun!
Why similar: Action 35.7%, Adventure 33.6%, Casual 30.7%
- #52 MMMmmm... Cake!
69% matchMostly Positive73% of 60 reviews2018
Dev: Dymchick1
Windows
Littile Cake need to escape from this world. Use your mouse to jump across the obstacles. Can you help him, please?
Why similar: Action 35.8%, Adventure 32.5%, Casual 31.7%
- #53 Biozone
71% matchNegative17% of 30 reviews2010
Dev: G5 EntertainmentPub: KONAMI
Windows
Play as Major Strike in this side scrolling, action-packed do or die operation to save your fellow soldiers against an uncontrollable bio-terrorist, Dr. Membranus! Investigate the strange activities of a massive infection that has transformed your comrades into evil mutations.
Why similar: Action 35.7%, Adventure 33.6%, Casual 30.7%
- #54 Space Saber
68% matchNo user reviews2024
Dev: Virtuelconcept
Windows
Space Saber is a virtual reality game where you launch yourself into space to intercept explosive mines with your lightsaber.
Why similar: Arcade 31.2%, Action 25.5%, Space 19.6%, 3D 11.4%, Sci-fi 11.2%
- #55 Cosmic Robots
66% matchNo user reviews2026
Dev: Aniode Pub: Aniode
Windows · Mac
Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.
Why similar: Tower Defense 34.5%, Aliens 17.1%, Space 8.4%, Sci-fi 7.9%, Base Building 7.3%
- #56 Octamari Rescue
69% match1 user reviews100% of 1 reviews2016
Dev: Sumo DigitalPub: War Child Gaming
Windows · Mac
Save the loveable Octamari from their dying home world in this fast paced and fun match 3 puzzle game.
Why similar: Action 35.4%, Adventure 33.2%, Casual 31.4%
- #57 Playthings: VR Music Vacation
68% matchPositive85% of 13 reviews2016
Dev: Always & Forever Computer Entertainment
Windows
Playthings: VR Music Vacation is a virtual reality music playground for the HTC Vive. Set on a tropical island where you hit bouncy, musical food with drumsticks, Playthings is sure to delight whether or not you’re a musician or a gamer.
Why similar: Action 35.2%, Adventure 33.1%, Casual 31.7%
- #58 1 Bit 1 Button
66% matchNo user reviews
Dev: NEETNectar
Windows
A short sci-fi visual novel with minigames sprinkled within. The space bar is all you'll need.
Why similar: Aliens 20.1%, Arcade 17.6%, Adventure 13.5%, Action 11.7%, Space 11.5%
- #59 Construction Charlie
67% matchPositive83% of 12 reviews2018
Dev: RiftBreak Software
Windows
Collect items and defeat enemies in this action-packed platformer! Construction Charlie jumps from between platforms over many detailed environments. Even after the main game is finished, a detailed level editor puts the power to create in your hands, allowing you to build your own experience!
Why similar: Action 37.5%, Casual 32.2%, Adventure 30.4%
- #60 Marcus Level
67% matchMixed68% of 65 reviews2016
Dev: 3DDUOPub: Fun4Family
Windows · Mac
Median: 5.4 hrsMean: 5.7 hrs≥1hr: 98%
Marcus thought that while his parents were away, he could play his favorite videogame "Gorbar and The Valley of the Seven Light Towers". Unfortunately, he got transported inside the videogame itself !
Why similar: Action 35.8%, Adventure 32.1%, Casual 32.1%