Top similar games like Red Horizon:

Pentasma is a side-scrolling arcade shooter inspired by Williams Electronics' 1981 classic 'Defender'. Protect The terraforming Humanoids from the deadly Aliens and raid the Alien planets to keep the galaxy peaceful!

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.

Gun your way towards survival in this action arcade adventure! Use your fuel supply to find upgrades to your ship and collect more fuel to keep progressing against harder and harder foes! Classic arcade action with a unique control scheme to pilot your ship.

Frantic Dimension is a retro twin-stick shooter inspired by the earliest twin-sticks, 'Space Dungeon' and 'Robotron 2084'. Never stop moving and shooting... or you'll die.

A throwback to the classic quarter eating arcade games of the 80's. Bit Blaster XL is a retro styled, addictive, and fast paced arcade shoot 'em up! (shmup).

Syder Reloaded revives the Syder series in this love-letter to 90s Amiga shmups with upgraded graphics and refined gameplay. Challenging levels, a fleet of ships and a motherload of alien invaders. Get back to your roots and curse at your monitor in this skills-first shooter.

ROAD DOOM is an arcade bullet-hell with a cheesy story. On a quest to defeat the four horsemen, blast your way through evil beings with skills of immense power. Unleash your wrath!

Super Galaxy Squadron is a fast-paced vertical shooter designed for human beings as well as SHMUP veterans. Featuring multiple game modes, a challenging but merciful difficulty curve, forgiving health system, and SEVENTEEN playable ships.

Steel Alcimus is a top-down helicopter shooter. Complete various tasks with your ally aircraft; such as saving the carrier, taking down the buildings, carrying objects, etc.

A throwback to the classic arcade games of the 80s. Space Smash is a retro styled, addictive, and fast paced arcade shoot 'em up!! (shmup).

ASTRO: The Beginning is a dynamic side scrolling shoot 'em up about a close-knit space team caught in a clusterf*ck of epic proportions.Unravel the evil plans of your foes and secrets of world order while taking down various types of enemies and engaging in crazy boss battles.

Inspired by classic arcade shooters, Space Mayhem is a fast-paced score chaser with a retro style. Collect powerups, manage your ammo, obtain massive score multipliers, and blast your way through infinite, chaotic waves of enemies!

Rolling Bird is a retro arcade shooter, heavily inspired by Namco's 1986 classic 'Rolling Thunder'.

Experience the ultimate challenge in Eclipse Survivors, a bullet-hell / area shooter game featuring epic bosses inspired by classic 16-bit titles. Collect XP gems, master unique skills, and dodge countless enemy bullets as you face off against hordes of foes. Will you survive the eclipse?

Jetboy is a retro supercharged jetpacking pixel shooter with a pumping metal soundtrack.

A very unique group of farm animals that tired of the abuse of the big chains of fast food decide to oppose them; Armed and trained to fight, our heroes must make their way through every restaurant and fight to stop their evil machinations... or be cooked in the attempt.

Distant Space are present the arcade game of cosmic fights in arcade style of the 80's, this is a game where you can control the spaceship and forced to destroy extraterrestrials, which are moving in the certain order.

Do you miss the times when games were not holding your hand? When they did not forgive mistakes and controls and rules were clear and simple to learn? YES? So you miss the 90s!

Shoot different types of spaceships while avoiding getting shot yourself. Kill 10 minutes at a time with this affordable colourful timewaster.

Call your friends and lead your squad through the outer space and protect your planet from asteroids and alien ships on this local shoot'em up. Shoot, evolve e explode these space enemies.

The Japanese just love their famous German-inspired Baumkuchen cakes, and hungry invaders from across the universe have discovered these delicious treats too! Are you up to the challenge of protecting the precious desserts from waves of alien attacks? Save the cakes!!

Defy Gravity! Orbt XL is an intense, addictive and fun 'just-one-more-round' score chaser. Perfect for playing while waiting in queue for another game.

Exit the Gungeon is a small, spin-off 'dungeon climber' immediately following the adventures of the misfit Gungeoneers.

SUPER FLAIL is a fast-paced arcade score attack game of flail-swinging rampage. Swing your flail to destroy everything until you die. Compare your score with other players and get on the top of the leaderboards.

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!

Temples vs Buildings is a roguelike with shoot'em up elements. The player will control flying temples of many cultures and fight against a vast array of flying buildings.

BoboInvasion is a classic spaceshooter game. Face waves of aliens with increasing difficulty, dodge their attacks, and choose a ship upgrade that suits your style to win

Vlambeer's SUPER CRATE BOX is coming to bring back the glory of the golden arcade age, when all that really mattered was getting on that high score list. Grab your baseball cap and loosen your pants, it's time to fight endless hordes of enemies and collect every weapon crate you can.

A Brutal, Roguelite Arcade Blaster. Similar in style and gameplay to arcade classics like Asteroids and Defender.

Crystal Cosmos is a side scrolling color-based space shooter. You need to match your ship's color to your enemies color in order to destroy them.

Endless arcade action with just ONE button - Switch directions whenever you shoot!

Complete tasks and survive the oncoming enemy waves for as long as possible! Are you good enough? Are you a frequent flyer?

GhostGame is the roguelike bullet hell game that puts your hand-mouse coordination to the test. Fight through hordes of enemies, gain powerful skills, acquire companions and defeat bosses to accomplish your ultimate mission.