- #1 Madrobot X
97% matchVery Positive85% of 142 reviews2016
Dev: NetoXPub: Sometimes You
Windows · Mac · Linux
Median: 3.0 hrsMean: 11.4 hrs≥1hr: 93%
MadRobot X is an old school shoot 'em up game. You control a robot trying to escape from the laboratory of a mad scientist, and to accomplish this, you'll need the help of GoboGobo, another robot who also wants to escape.
Why similar: Casual 54.6%, Indie 45.4%
- #2 Bad Caterpillar
96% matchVery Positive95% of 150 reviews2016
Dev: Fun Infused Games
Windows
Median: 2.7 hrsMean: 3.3 hrs≥1hr: 88%
Bad Caterpillars and their swarms of insect hordes are invading. Get to your ship, man the lasers, and save the galaxy from caterpillars, scorpions, spiders, and a slew of other ill-tempered giant killer insects.
Why similar: Casual 69.9%, Indie 30.1%
- #3 Rigid Force Alpha
96% matchMostly Positive80% of 133 reviews2018
Dev: com8com1 Software
Windows
Median: 2.8 hrsMean: 4.7 hrs≥1hr: 76%
Classic shoot’em up action in modern 3D! Blast off to take down hordes of infected aliens and dreadful machines programmed on waging an intergalactic war against mankind!
Why similar: Casual 100%
- #4 Alien Attack
95% matchMostly Positive77% of 241 reviews2016
Dev: Alien Jellyfish
Windows
Median: 3.8 hrsMean: 5.8 hrs≥1hr: 97%
You are a space trooper. Your crew finished the cleaning mission and left you alone by accident. Now you are surrounded by aliens. Persist them as long as you can.
Why similar: Casual 66.9%, Indie 33.1%
- #5 Crazy Steam Bros 2
94% matchMixed44% of 52 reviews2015
Dev: Ars Creativa
Windows · Mac · Linux
Median: 3.4 hrsMean: 6.0 hrs≥1hr: 94%
Crazy Steam Bros is a classical horizontal shoot'em up inspired by the gameplay of old arcades. Anton and Dupont are brothers, inventors, and a little mad also! With the help of their landlady, Miss Lily, they must defeat the evil Baron and their hordes of moustached soldiers.
Why similar: Casual 67.5%, Indie 32.5%
- #6 Space Beret
94% matchMixed52% of 690 reviews2016
Dev: Amaterasu Software
Windows
Median: 2.9 hrsMean: 4.0 hrs≥1hr: 87%
Space Beret is a top down sci-fi shooter set in a "Starship Troopers" and "Crimsonland" inspired setting. In it, mankind is forced to fight hordes of horrible monstrosities in a desperate struggle for survival.
Why similar: Casual 82%, Indie 18%
- #7 Cosmic Dust & Rust
93% matchMixed65% of 563 reviews2016
Dev: 16bit NightsPub: Back To Basics Gaming
Windows
Median: 3.3 hrsMean: 4.3 hrs≥1hr: 92%
Cosmic Dust & Rust is a tower defence game set in space. Upgrade your ship, build turrets and defence systems, undergo side missions and take control of your ship manually and use its cannons and super weapons to destroy your enemies.
Why similar: Casual 88.2%, Indie 11.8%
- #8 A Whole Wolfrush
89% matchVery Positive96% of 188 reviews2025
Dev: uglycoal
Windows
Four friends battle their way across space to claim a once-in-a-lifetime wish. Their lives are in your hands.
Why similar: Indie 100%
- #9 Bladestar
92% matchMostly Positive70% of 107 reviews2016
Dev: Fair Weather Studios
Windows
Median: 4.0 hrsMean: 5.5 hrs≥1hr: 97%
Bladestar is a sci-fi cinematic action shooter featuring visually rich worlds with potentially endless enemies on each level. Defend the galaxy flying a Manta Starfighter through asteroid, mine, and debris fields while battling pirates, rebels, and aliens.
Why similar: Casual 52.1%, Indie 47.9%
- #10 Gal-X-E
91% matchVery Positive86% of 91 reviews2016
Dev: Volens Nolens Games
Windows
Median: 3.3 hrsMean: 6.5 hrs≥1hr: 97%
Gal-X-E aims to revive the old-school shoot em up genre, and adds modern elements to it! Fight your way through endless waves of randomly generated madness! Collect spaceships and show the enemy who's boss!
Why similar: Casual 69.2%, Indie 30.8%
- #11 Space Codex
91% matchVery Positive81% of 412 reviews2016
Dev: takk
Windows
Median: 3.0 hrsMean: 3.4 hrs≥1hr: 86%
Space Codex is a casual retro arcade minimal awesome top-down shooter featuring waves of enemy spaceships with different attacks in what is, literally, a bullet hell. To beat them, you will have power-up options available through the map. The game only gets harder. How long can you stay alive?
Why similar: Casual 100%
- #12 Bad Bots
90% matchMixed55% of 260 reviews2013
Dev: Point Five ProjectsPub: Digital Tribe
Windows · Mac
Median: 42 minMean: 3.1 hrs≥1hr: 45%
As Sam McRae, last surviving member of the “Titan Hauler” crew, you must hack and blast your way through an onslaught of truly bad 'bots to find a way to prevent a potential planet-destroying catastrophe.
Why similar: Indie 100%
- #13 Star Drifter
89% matchMixed48% of 227 reviews2016
Dev: Nostalgia HoundPub: Back To Basics Gaming
Windows
Median: 3.3 hrsMean: 3.6 hrs≥1hr: 91%
Star Drifter is a super hard and hectic space shooter, inspired by classics such as R Type, Xenon, Galaxian, Moon Cresta and Gradius.
Why similar: Indie 56.5%, Casual 43.5%
- #14 ShellMobile: Titan Rampart
81% matchVery Positive98% of 206 reviews2025
Dev: 红景天娱乐
Windows
On the cosmic frontier, humanity has fought alien species for a century. As traditional defenses fall to new-gen alien mechs, tech giant ShellMobile—human-centered at its core—kindles new hope via breakthroughs in extraterrestrial titanium ore research.
Why similar: Casual 81.7%, Indie 18.3%
- #15 Robot Heroes
87% matchMostly Positive77% of 69 reviews2017
Dev: Heroes Productions
Windows · Mac
Median: 6 minMean: 4.1 hrs≥1hr: 24%
Control the mysterious robot army to resist falling giant aliens.
Why similar: Indie 100%
- #16 Hyper Echelon
85% matchVery Positive89% of 65 reviews2021
Dev: GangoGames LLC
Windows · Mac
The Cyan Galaxy is in peril! Your trusty little star fighter and rag tag squad of wingmen are the only hope against the evil EXODON! Level up from a pea shooter to an offensive powerhouse as you engage in frantic combat across many wondrous locales.
- #17 Metal Planet
88% matchMostly Negative31% of 72 reviews2014
Dev: Tiny Game Fort
Windows
Median: 3.1 hrsMean: 3.8 hrs≥1hr: 95%
The game is set on a distant planet called Metal Planet. Two corporations are fighting for control of a valuable resource capable of transforming matter. You take on the role of a soldier with equipped power armor and powerful weapon.
Why similar: Indie 100%
- #18 Super Space Club
83% matchVery Positive82% of 50 reviews2023
Dev: GrahamOfLegend
Windows
Super Space Club is a lo-fi arcade space shooter to chill to. Defend a vibrant galaxy as a club of misfit heroes and battle endless waves of spacecrafts to the tune of atmospheric beats. Outlast your enemies and vibe to the rhythm of the stars.
- #19 Martian Law
84% matchMostly Negative34% of 431 reviews2019
Dev: Linclo Games
Windows
Mars is under attack! An unknown enemy is dropping bombs on the peaceful red planet. It is up to you to fight off the onslaught so the innocent can escape. Run (umm...slide), jump and blast your way to freedom in the arcade-inspired goodness that is Martian Law. Save Mars!
Why similar: Casual 62.9%, Indie 37.1%
- #20 ProtoGalaxy
86% matchMixed59% of 68 reviews2010
Dev: Source Studio Ltd.
Windows
Median: 12 minMean: 4.6 hrs≥1hr: 25%
Earth is under siege! A mysterious and powerful alien race has come to enslave the entire galaxy, and your fleet is humanity's last hope. You must put an end to the attacks and rebuild a home for the survivors.
Why similar: Indie 100%
- #21 Kickback Clicker
77% matchVery Positive84% of 57 reviews2025
Dev: Dot bloodPub: Targem Games
Windows
Mutants are flooding the planets! Destroy them all! Improve your technology, upgrade weapons and turn dangerous worlds into safe havens. Every click is a step towards the future of mankind!
Why similar: Casual 74%, Indie 26%
- #22 Starr Mazer: DSP
84% matchMostly Positive71% of 271 reviews2016
Dev: Imagos SoftworksPub: Digital Tribe
Windows · Mac · Linux
Median: 1.1 hrsMean: 2.4 hrs≥1hr: 58%
The UNFP's been kicked in the teeth by a G'ell invasion force and their last and only hope is a planetary outpost and its fleet of experimental DSP MkI Forward Assault Fighters and anyone marshal enough to strap into one and forcefully accept some apologies.
Why similar: Indie 66.8%, Casual 33.2%
- #23 Mobile Astro
82% matchMostly Positive71% of 182 reviews2016
Dev: Raxasoft Games
Windows
Median: 2.6 hrsMean: 7.0 hrs≥1hr: 87%
Run, gun, and survive! In this twin stick arcade shooter, you'll be fighting your way through countless waves of enemies to restore maximum peace to the galaxy!
Why similar: Indie 100%
- #24 RX squad
82% matchMostly Positive70% of 81 reviews2016
Dev: YFYX GAMESPub: My Way Games
Windows
Median: 3.1 hrsMean: 3.7 hrs≥1hr: 87%
The earth is suffering from an attack of space monsters, and the terran defense forces are called for combat and the annihilation of the monsters. The RX Squad with their advanced ships risks themselves to keep the earth in peace.
Why similar: Casual 66.9%, Indie 33.1%
- #25 Gundroid
73% matchVery Positive96% of 57 reviews2025
Dev: Kitogoru Games
Windows
Protect the Earth from an alien invasion in this Run N’ Gun action spectacle. Take control of G.U.N.N.R. and battle your way through a blast from the pixelated past.
Why similar: Indie 100%
- #26 Steel Empire
80% matchMostly Positive77% of 107 reviews2018
Dev: mebius.
Windows
Median: 4.5 hrsMean: 6.0 hrs≥1hr: 92%
Steel Empire is a steam punk shoot'em up game featuring a frantic combat filled with powerful enemies and insane obstacles. Enjoy a beautiful world and retro game-play as you dodge and shoot your way through classical stages to fight the evil empire!
Why similar: Casual 65.6%, Indie 34.4%
- #27 Outpost
76% matchMostly Positive73% of 189 reviews2023
Dev: BananaDogGames
Windows
this is a tower defence game,we need upgrade our weapons to fight waves of enemies,robots can mining diamonds,and we need spent those in many aspect，features of this game: 1 return back before dager comes,2tempory upgrade are important but permanent upgrade are better
Why similar: Casual 100%
- #28 Galaxy Highways
73% matchVery Positive98% of 54 reviews2025
Dev: Nanopike
Windows · Mac
An indie story-driven space shooter with intense battles, escalating enemy waves, and massive boss fights. Choose and upgrade ships, unlock powerful weapons, and protect your allies. Upgrade your base and construct a battleship to take on even stronger enemies. All set to a rock & synth soundtrack.
Why similar: Casual 100%
- #29 Nova Drift
70% matchOverwhelmingly Positive96% of 14,407 reviews2024
Dev: ChimericPub: Pixeljam
Windows · Mac
Median: 5.3 hrsMean: 19.6 hrs≥1hr: 75%
Nova Drift distills the mechanical depth and strategy of an ARPG into classic arcade space combat. Control an endlessly evolving bio-mechanical ship, face legions of strange and deadly foes, and ride the wake of a dying star across the void.
Why similar: Casual 69.9%, Indie 30.1%
- #30 Abstractanoid
79% matchMixed65% of 55 reviews2018
Dev: katanadeathPub: Alien Jellyfish
Windows
Median: 36 minMean: 1.7 hrs≥1hr: 19%
A retro-style arkanoid about fighting aliens to save the mankind.
Why similar: Casual 67.5%, Indie 32.5%
- #31 Gatling Gears
79% matchVery Positive84% of 186 reviews2011
Dev: Vanguard Games
Windows
Median: 1.0 hrsMean: 4.1 hrs≥1hr: 50%
When the Empire begins its reign of destruction in a thirst for natural resources, it’s up to Max Brawley, a retired Gatling Gear pilot, to stop them.
Why similar: Indie 100%
- #32 Pixel Space Battles
78% matchMostly Negative37% of 78 reviews2017
Dev: Nikita "Ghost_RUS"Pub: Ghost_RUS Games
Windows
Median: 6 minMean: 3.0 hrs≥1hr: 12%
Fly for a spaceship and destroy enemy alien ships to return to your homeplanet – Nibiru
Why similar: Casual 66.5%, Indie 33.5%
- #33 Robotex
78% matchMostly Negative38% of 978 reviews2014
Dev: YFYX GAMESPub: My Way Games
Windows · Mac · Linux
Median: 2.4 hrsMean: 2.9 hrs≥1hr: 66%
Life on Earth is unsustainable. Humanity must seek a new home but the only planet found is very hostile. You were sent on a expedition to slay the monsters inhabiting the surface of this planet. In this adventure you end up being the villain. Game contains two basic controls, many puzzles and lots of guns and enemies.
Why similar: Casual 65.9%, Indie 34.1%
- #34 Insect Swarm
67% matchVery Positive84% of 2,560 reviews2024
Dev: Parallel Portal
Windows
Median: 3.4 hrsMean: 66.6 hrs≥1hr: 81%
The insect swarm is a swarm consists of millions of alien insects, and you, as the only survival on this barren planet, will have to fight against them dauntlessly. Good luck!
Why similar: Casual 100%
- #35 BomberZone
76% matchMostly Positive84% of 346 reviews2016
Dev: Dracula BytesPub: exosyphen studios
Windows · Mac · Linux
Median: 3.6 hrsMean: 5.3 hrs≥1hr: 98%
The classic maze based strategic bombing game is back. Earth is invaded by aliens and you are in charge of your robotic soldier to defend it.
Why similar: Casual 68.8%, Indie 31.2%
- #36 CARNAGE OFFERING Tower Defense
69% matchVery Positive90% of 306 reviews2023
Dev: FuturtechPub: Nova's Army
Windows
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
Why similar: Indie 100%
- #37 Procyon
75% matchVery Positive91% of 131 reviews2014
Dev: Deadly Red Cube
Windows
Median: 2.4 hrsMean: 4.2 hrs≥1hr: 95%
It's the future! And humanity is, predictably, under attack by extraterrestrial forces. Lucky for us we have an experimental ship that's never before been flown that will surely...uh, possibly...well, implausibly be able to win the war! All we need now is a pilot or two.
Why similar: Indie 100%
- #38 Shooting Saucer
70% matchVery Positive90% of 51 reviews2023
Dev: SinksAdventure
Windows
A flying saucer chases you all over the galaxy. Run away, defeat enemies, and evolve to avoid getting abducted
Why similar: Indie 100%
- #39 Space Pressure 3D: Prelude
69% matchVery Positive85% of 130 reviews2023
Dev: Maze TeamPub: Tinaynox
Windows
Immerse yourself in the story of two brave space amazons who dare to challenge the irresponsible aristocratic system. Overcome all the obstacles that appear on your way - hordes of space scavengers, armies of General Admiral and get to the main villain - Evil Moneybag!
Why similar: Indie 100%
- #40 Galactic Missile Defense
75% matchMixed60% of 57 reviews2017
Dev: Black Sheep Games
Windows · Mac · Linux
Median: 3.7 hrsMean: 5.2 hrs≥1hr: 93%
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!
Why similar: Casual 66%, Indie 34%
- #41 Iron Soul
77% matchVery Negative19% of 58 reviews2014
Dev: BluBee GamesPub: Effat Effati
Windows
Median: 3.1 hrsMean: 3.0 hrs≥1hr: 87%
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.
Why similar: Indie 100%
- #42 Bacteria
74% matchMixed57% of 415 reviews2016
Dev: Sometimes You
Windows · Mac · Linux
Median: 5.5 hrsMean: 6.5 hrs≥1hr: 97%
'Bacteria' - A relaxing puzzle game based on the rules of the cellular automaton ‘Life’ devised by John Horton Conway in 1970.
Why similar: Casual 83.5%, Indie 16.5%
- #43 Galactic Lords
74% matchMixed67% of 97 reviews2017
Dev: TheDreikPub: Phoenix Reborn Games
Windows
Median: 6 minMean: 10.1 hrs≥1hr: 38%
Experimental indie strategy game. Lead the group of Galactic Lords through 7 levels to discover the origin of a world-wide menace!
Why similar: Casual 68.6%, Indie 31.4%
- #44 Lilac 0
65% matchVery Positive95% of 73 reviews2025
Dev: Bullet Prince
Windows
The machine world of Molybdion has fallen into disarray. As Nidhogg eats the root of the planet, unending wars rage on the surface! Slice your way through hordes of metallic foes in five frantic levels, defeat fearsome bosses, and dodge countless bullets in this vintage vertical shoot 'em up.
Why similar: Indie 100%
- #45 Rise & Shine
73% matchMixed69% of 907 reviews2017
Dev: Super Mega TeamPub: Adult Swim Games
Windows · Linux
Median: 3.2 hrsMean: 3.9 hrs≥1hr: 90%
Welcome to Gamearth, a once peaceful planet now threatened by the warmongering Space grunts of Nexgen. In the aftermath of their devastating first strike a child named Rise is forced to take on the sacred gun Shine - and with it the fate of his world.
- #46 Space Elite Force
72% matchVery Positive89% of 185 reviews2018
Dev: Rising Moon Games
Windows
Median: 1.4 hrsMean: 10.5 hrs≥1hr: 56%
Gear up for an intergalactic thrill ride! Space Elite Force is a frenzied space-shooter packed with weapon customization and epic boss battles. Take command of your ship and fight for the survival of humanity!
Why similar: Casual 100%
- #47 Mecha Ritz: Steel Rondo
72% matchVery Positive99% of 137 reviews2016
Dev: HEYPub: Hanaji Games
Windows · Linux
Mecha Ritz: Steel Rondo is a vertical scrolling arcade shoot 'em up following the journey of a lone Mecha through the desolate retro stylized world and the onslaught of enemy waves to reach Veloce, the young genius responsible for the extinction of humankind.
Why similar: Indie 100%
- #48 Chicken Invaders 3
71% matchVery Positive93% of 423 reviews2015
Dev: InterAction studios
Windows · Mac
Median: 4.3 hrsMean: 5.0 hrs≥1hr: 94%
Chickens. For centuries we have oppressed them, grilling, roasting, stewing, and stuffing them in buns. The time has come for us to pay. Intergalactic chickens are invading Earth, seeking revenge for the oppression of their earthly brethren!
Why similar: Casual 66.9%, Indie 33.1%
- #49 Half Hour Hexagon
65% matchVery Positive84% of 112 reviews2023
Dev: Carson Kompon
Windows
Obliterate a never-ending horde of enemies while you attempt to reach the 30 minute mark. Race to earn XP and level up to gain new items and opportunities for each run to become stronger than the last.
Why similar: Casual 100%
- #50 Wild Dogs
65% matchVery Positive97% of 68 reviews2023
Dev: 2ndBoss
Windows · Mac · Linux
The world is under a frantic alien attack. Amidst the chaos and with the army virtually subdued, the deadliest and most inconsequential pair of specialists are called upon to do what must be done. Join the war hunting aliens around the world and in every way possible.
Why similar: Indie 100%
- #51 Mr Blaster
70% matchMixed64% of 81 reviews2017
Dev: ENTERiPub: Forever Entertainment S. A.
Windows · Mac · Linux
Median: 3.5 hrsMean: 5.2 hrs≥1hr: 94%
Mr Blaster is a higher-level space adventure with an aim to conquest the universe. It’s a way to test strategic playing skills and the precision of shooting. A galactic war over the conquest of a planet and seizing the opponent’s flag
Why similar: Casual 67.5%, Indie 32.5%
- #52 Steel Storm: Burning Retribution
71% matchMixed60% of 369 reviews2011
Dev: Kot in Action Creative Artel
Windows · Linux
Median: 4.2 hrsMean: 4.2 hrs≥1hr: 81%
Control an advanced hovertank, packed with the most advanced and sophisticated weapons as you fight against extraterrestrial invaders.
Why similar: Indie 100%
- #53 Iron Armada
62% matchMostly Positive77% of 177 reviews2024
Dev: Bluedrake42Pub: Drakeling Labs
Windows
Median: 1.8 hrsMean: 816.3 hrs≥1hr: 54%
Iron Armada is a multiplayer, space-faring combat game where players must team up to build a fleet of ships in order to survive the perils of space and defeat the opposing player faction. Build ships of all shapes and sizes, mine resources, and scavenge parts with friends to conquer the universe!
Why similar: Casual 93.5%, Indie 6.5%
- #54 Offendron Warrior
68% matchPositive86% of 50 reviews2018
Dev: Hijong ParkPub: PsychoFlux Entertainment
Windows
Offendron Warrior is a retro arcade that combines shooting and defense. Your objective is saving Offendron civilians in the planets from the group of enemies, who are trying to spread a virus that turns Offendrons into mindless killing machines and eventually destroy the whole planet.
Why similar: Indie 100%
- #55 The Wraith of the Galaxy
63% matchMostly Positive78% of 186 reviews2023
Dev: Whale Rock Games
Windows
The Wraith of the Galaxy is a third-person space combat game. Aliens have taken over outer space in order to conduct experiments on entire planets. Destroy them or they will destroy you.
Why similar: Casual 100%
- #56 Nomads of Driftland
64% matchMostly Positive74% of 152 reviews2020
Dev: Star Drifters
Windows
Median: 54 minMean: 13.0 hrs≥1hr: 45%
Not everyone on the planet Driftland is happy with the new order brought by the mages-rulers. Is this nothing more than an attempt to restore the apparent balance that has almost destroyed the entire planet once? Join the brave Nomads and fight for freedom on your own terms.
Why similar: Indie 100%
- #57 Elite vs. Freedom
68% matchMixed43% of 101 reviews2016
Dev: AVE
Windows
Median: 3.5 hrsMean: 9.3 hrs≥1hr: 94%
Elite vs. Freedom is an action-packed Indie third-person shooter game. In the near future, the Earth is controlled by a global government. Few dare to resist this neo-feudalistic, corporatist, police state. Leading the insurgence, a group known as Freedom takes up the fight.
Why similar: Indie 100%
