Top similar games like FORTRESS DEFENDER:
FORTRESS DEFENDER $14.99
This game, "FORTRESS DEFENDER", is a side-scrolling power-up shooting game with an 80's flavor. Defeat the enemies that appear one after another, dodge their attacks, and aim for the boss that lurks in the depths of the stage. There are a total of eight stages with various tricks and bosses.
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Pixel Game Maker Series STEOS -Sorrow song of Bounty hunter-$9.99
"Feeling tired of regular shooters?" “If you answered YES, then what are you waiting for?” “Reverse your thinking in this not-side-scrolling artillery shooting game, Steos!”

Pixel Game Maker Series OMA2RI ADVENTURE$5.99
The Ultimate Speedrun Platformer!! On to an adventure to rescue Momo-chan!

Zahhak$1.99
Fight against a sect planning terrorist attacks in this side-scrolling shooter.

Rangerdog$5.99
Save the universe with Rangerdog! A cute retro-style side-scrolling shoot 'em up!

ROCKETRON$5.99
Fly through the sky! Rain down fire on the enemy forces from above! Enjoy solid combat and simple non-linear exploration in this high flying side-scrolling action shooter!

GIGANTIC ARMY$5.99
Side-scrolling mech-shooting bad-assery is BACK!GIGANTIC ARMY is a heartfelt homage to 16-bit era mech shooters such as Cybernator / Assault Suits Valken, Metal Warriors, and Front Mission: Gun Hazard, developed by the studio behind the acclaimed shooter SATAZIUS.

ImageStrikerFREE
Image Striker is a 2D vertical scroll shooting game.

Spacewing War$6.99
Blast off for a retro shoot’em up experience filled with clever twists and secrets!

UKI-UKI-TENGOKU2FREE
Retro 2D side-scrolling shooter with pixel art. Control a penguin (Laser), a fish (Firebreath), and a human (Railgun) to achieve a high score!

Hell Pages$4.99
The doors to hell have been opened. The Earth has become a battlefield among 10 infernal armies. Bael, the most feared among all demons, set out in an insane crusade to conquer the Earth for himself in this scrolling shooter game, with 10 stages with plenty of action, violence and blood.

Bricks Survivors$4.99
Bricks Survivors blends retro brick-breaker charm with modern roguelike intensity. Survive fast-falling brick waves and face pixel art bosses in a game crafted by a single creator. A unique and addictive experience, available exclusively on PC.

The RushFREE
The Rush is a horizontally scrolling shoot 'em up with graphics inspired by classic space shooters of the MSX. Buckle up and see if you have what it takes to master the highly adaptive Chameleon Quartz space fighter and single-handedly obliterate the alien invaders!

ココロクローバー パート2/Kokoro Clover Part2$6.99
The second installment in the "Sunday morning anime" x "casual difficulty side-scrolling" anime game series "Kokoro Clover"! Five new scenarios with new characters and new stages have been added. This series can be enjoyed by children and those who are not good at action.

WORMHOLE$9.99
Eat, shoot, dash, and explode your way through the cosmos in this adrenaline-fuelled arcade action game. WORMHOLE is a roguelike twist on the classic snake format featuring a stackable perk system and 100+ hand-crafted levels.

SEEP Universe$2.99
Kick butt in this retro 2D action-platformer! SEEP Universe is an indie game for PC inspired by the 8-16 bit era!

RagingBlasters$14.99
Raging Blasters is a vertical scroll shmup featuring high speed scrolling and the exhilaration of destruction.

Comit in Krater Returns$0.99
Krater has escaped from Planet Prison and now only Comit & Jupi can stop him.

Comit in Cosmo Knight's Revenge$0.99
Cosmo Knight is back and seeks revenge on Comit & Jupi!

EnGaCho Dreamy Butterfly$6.99
The path changes depending on player's choices! "EnGaCho" is an arcade-style side-scrolling action game where you advance while defeating enemies and earning money.

Hexapoda$12.99
After the last human war, gases were spread through the atmosphere making it unbreathable. The richest to fled to orbital colonies and the others took refuge underground. Get ready to fight giant Insects for the future of humanity !

Jungles of Maxtheria$19.99
Search for lost treasure in this Indiana Jones style adventure. Your quest for fortune and glory will not be easy however. Few ever return from their expeditions into the deep jungles. So, if you are brave enough, the "Jungles of Maxtheria" awaits!

Snake Pit$1.99
"Snake Pit" is a Puzzle Game with a simple but incredibly Fun Gameplay. Help the little Caveman escape the Snakes and defeat Medusa.

Comit the Astrodian 2$0.99
Comit the Astrodian 2 is the sequel to 2016's Comit the Astrodian. It features new stages, new abilities and new enemies.

The Battle of Aurinoxia$2.99
A retro space shoot 'em up with pixel art graphics, unique enemies, tough angry bosses, and a killer soundtrack. You are among the first pilots to arrive in the system to mount the counteroffensive against the aggressors. Get out there and show these aliens the price for messing with The Alliance!

Pilots Of Darsalon$4.99
Your job is to locate and transport the containers to your base avoiding enemies on your way. Your ship is equipped with a hook to carry the containers. This is a physics based arcade game, inspired on the very early classics and with a strong Commodore 64 feel on it.

Comit the Astrodian 3$0.99
Comit returns in Comit the Astrodian 3. This game features new stages, new allies and a new villain, Cosmo Knight.

Vengeful Guardian: Moonrider$16.99
Vengeful Guardian: Moonrider is a side-scrolling action platformer that channels the golden age of classic 16-bit action games in a full-throttle quest for revenge. Created to defend a totalitarian state, the Moonrider rejects its programming and now seeks vengeance on its creators.

Battle Princess Madelyn$19.99
Battle Princess Madelyn is a game that follows the journey of a young knight in training, Madelyn, and her ghostly pet dog, Fritzy. Join them as they set out on a journey to save her kingdom and her family from the clutches of an evil wizard!

Crazy Voyage$6.99
Enter this journey and help your pilot to destroy all kinds of opponents that will stand in his way in 6 different worlds. A vertical shooting game with the aim of destroying obstacles and reaching the defined distance to detonate the boss of each level. Travel in this universe of oddities!!!

Bloopy & Droopy$4.99
A Game Boy style 8-bit platformer, giving you an old-school experience in which you can switch characters at any time and use your digging skills to make your way through the terrain!

Abduction Bit$0.99
Abduction Bit is a NES-like arcade based on elements of some timeless classics from 80's (Bubble Bobble, Ice Climber, Mario Bros).

Polygoneer$4.99
Test your reflexes in POLYGONEER, defend yourself from prolygonal shapes taht comes from everywhere, just hitting is not enough you need to match the right color shot to the polygon too! Are you ready for the challenge?

Moon Bullet$0.99
The nights are not the same anymore. The dead resurface from the ground. Your resources are limited. Nothing is as easy as it sounds.

Harpoon Shooter! Nozomi$13.99
Shoot the harpoon and pull the enemies! Pull them in close and defeat for a higher score. For beginners, collect sweets instead of beeing attacked. You can enjoy retro and kawaii pixelarts, and deep game mechanics.

ARK BOX Unlimited$4.99
Create, share and download unlimited new Stages for this new arcade remix with integrated Stage editor!

Awakened Evil$7.99
Awakened Evil is an action platformer inspired by the classics. Jump and slash your way through intense linear stages that will put your skills to the test. Do you have what it takes to slay all the bosses, and take on evil itself?

Galactoids - Galactic Invaders$9.99
Battle swarms of Galactic Invaders in this action-packed retro-inspired arcade shoot em up. May the Nerd be with you.

Brutal Dinosaur$14.99
Brutal Dinosaur is a game that mixes two styles of games, beat em up and shooter in a unique way.

[Speer DX]$4.99
Throw your speer, use it as a platform, and puzzle-platform your way through 125 stages in this director's cut version of the classic [Speer]!

Origami Flight$4.99
Origami Flight is a sidescrolling 2D shoot' em up where you control a paper airplane with a simple but challenging mission: to save the Origami World. Now you must beat 6 different stages with tons of enemies in order to save the Tsuru from the evil Origami Fox.

Overdriven Evolution$14.99
Destroy Huge Bosses, dodge thousand of bullets and resolve quick puzzles with your powerfull space ship ! New and remade stages with improved graphics and 3D environments. More enemies and more bullets !

Cyberpunk 3776$4.99
Cyberpunk 3776 harkens back to the glory days of arcade shoot-em-ups. It all begins on a postapocalyptic earth and proceeds into space. Your journey will be a metaphor about life and death, a road that every person has to walk down alone. The only choices you get while on your path to the inevitable end: keep your head up high or forfeit.

Martian Invaders$0.99
A New Retro Classic Space Shooter Arcade Game. Defend Earth from waves of martian invaders and flying saucers in this modern version of a space shooter. Go Back to the 1980’s and Blast these Martians Back into Outer Space!

Insectipede$0.99
A New Bug Blasting Arcade Game! Blast your way through 50 Challenging Stages with Waves of Insects and UFOs, Power-Ups, and Arcade High Scores. Time To Bug Out… Are You Ready For It?

Bean Busy$1.99
Bean Busy is a maze chase game inspired by arcade classics of the early 80s. A colorful collection of items, obstacles, and (of course) beans await! Tackle one labyrinth after another while outwitting the monsters on your tail. Invite a friend and chase that high score together!

Rifter$11.99
Breathtakingly fast and tough-as-nails, Rifter is an acrobatic platformer drenched in neon and infused with a pumping 80’s synthwave soundtrack. Run, swing, smash and dash at exhilarating speeds on a quest to discover the secrets of a shattered world.

Pedro Temple$4.99
An action arcade platformer!

Ghost Teen Escape from Limbo$0.99
Make use of your newfound ghostly abilities to make your way back to the world of the living!

AfroPenguin & The Forbidden Ramen$3.99
"AfroPenguin & The Forbidden Ramen" is a challenging argentinian 2D adventure game which pays homage to those Nintendo titles that made us smile as a kid (and why not, as adults).

Holua's Arcades$4.99
Get ready to dive back into the pure joy of gaming. Prepare yourself for four thrilling games inspired by the arcade genre's all-time favorites. From challenging platformers, to epic space battles and classic beat'em up action. It's like having four arcade machines at your fingertips!

Froggo Swing 'n Grapple$4.99
Froggo Swing 'n Grapple is a side-scrolling platformer game about a little frog on an adventure to save his pet rock. Swing 'n grapple through the stages with Froggo's powerful and sticky tongue!