Top similar games like orbital defence unit:

Tartaron is top-down shooter with an old-school art style and a variety of levels to beat. Engage in close-range combat, or snipe your enemies from afar, it's up to you.

Hack & Schlitz is an epic random-generated Arcade-Roguelike game. Starting a run will spawn you in a 2d-Pixelstyle dungeon where you can decide what difficulty the next room has.

Shoot your way through an endless stream of enemies! GLORP is an action roguelike where you must upgrade your skills and weapons to become overpowered

Join the quest to overtake the void and become a hero! In this game, you will slay your enemies in a point and click fashion and overtake the void for good, or so you think... Join the quest in taking over the void to find out!

Defend Spacebase 19 from the asteroids swarming down on the station! Shoot down waves of stones and equip different powerful weapons. How many waves can you last? A simple nostalgic retro arcade turret defense shooter.

Square off against your friends in this life-or-death shoving simulator! 2 Player Local Competitive 1v1. Best played with gamepads.

'Shoot or Die' is a thrilling 2D shooting game where you take on the role of the last human survivor facing a robotic uprising. Arm yourself with powerful weapons, such as the Fireball and Shield, and utilize game-changing perks, to navigate dynamic battlefields and outwit cunning enemy droids.

Stopping Santa is a Jazzy top-down arena shooter where you play a mercenary fighting against Santa’s legions. Short play sessions, simple controls, instant action, and a global leaderboard for the Top 10. Inspired by classic arcade games.

Classic Western Shootout Duel - One-on-One. Polish your boots, clean your revolver, and hit the road. It's almost High Noon ... and losing is not an option.

Core Breach is a fast-paced, twin-stick arcade shooter in a pixel art style. Play as a Trojan worm virus, outmaneuvering and destroying antivirus enemies. Upgrade your worm with powerful attacks and skills as you fight to breach the CPU core and uncover its secrets

Find powerful weapons, fight monsters and discover the secrets of the Zone. Each weapon is different.

stranded in space with nothing but a gun, hostiles start showing up out of nowhere... what now? you can't escape, but you can boot and shoot

Arcade car combat game set in virtual world where you play as virus

The Squids are here - but your soldiers are ready. Grow your squad up to 4 members by rescuing survivors. Obtain the best weapons, support, and equipment you can by gathering Squid Samples. Become a force to be reckoned with, one the Squids will fear for generations to come.

Cell Wars is a classic arcade shooter where your goal is to consume all enemy cells by shooting and eating them. Inspired by NES graphics, gameplay from arcade 80s cabinets, and early 2000s skill tree systems. Unlock abilities and skills to survive waves of regular, elite and boss cells.

Play as a little purple square who just wants to have coins and not get scammed.

Saddle up for Ricochet Rodeo, a 2D-platform, pvp brawl to see who's the fastest shooter in the pixel-rendered west. Assemble a posse of up to 8 cowboys to dance in chaotic deathmatches where bullets bounce and 1 hit kills.

Breach In Space is a 2D shooting game with challenging combat and very hard platforming. Find a way back to home galaxy through 4 different planets.

Arcade shooter at the end of the world! Play as fighter pilots fending off the aerial hordes of hell during total nuclear apocalypse, Doomsday Jetlag combines casual bullet-hell, shoot-em-up & rogue-lite elements to maximise the fun of playing through armageddon!

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?

Gunstorm is a space shooter loaded with playability. Wave after wave of alien craft attack your agile ship. Use the mouse to control your ship at the speed of thought in a perfectly balanced game that starts easy and gradually gets more difficult.

Drawn into your PC by an antivirus, control a multi barrel tank in this Action Roguelike, 2D Shooter. Defeat motherboard viruses to unlock new zones. The 'UPGRADE MACHINE' grants enhancements every 1-10 seconds. Use points to add upgrades in this Arcade, Top-Down Adventure.

TETRAGUN is quadrant-based shooter where you're surrounded on all sides. You'll gain powerful upgrades as you progress, but so will your enemies.

RANDOBOUNCE is a fast-paced, arcade, score-attack roguelike where you bounce uncontrollably while crafting the most ridiculous, overpowered weapon possible. Survive, rack up points, and let the chaos unfold!

Alien Wall is a powerful genre mix between a brick breaker and ‘shoot em up’. Modern retro Arcade fun at its best!

An early prototype, Slime Brawly Brawl exists to scratch an itch. An itch for a simple, fast paced platformer melee game like 90s kids might have played and loved growing up.

School Fighter is a top-down arena roguelite shooter where you play as a student who fights off school enemies using paper airplanes. You have access to a school shop, unique perks, and an upgrade station to help you create a powerful character and overcome the school nightmare!

Wizard Blaster is a top-down time survival roguelite where you play as a wizard. Use magic to fight off hordes of evil. Choose from different characters and abilities to survive.

WKSP Rumble is the first corporate fighting game. Play with 100+ real employees of a real ad agency and get to know more about the advertising world in a pixel art journey full of ass kicking.

This is a retro space shooting game, where you only fight against the strongest enemy. There are 15 unique bosses in the game, and players need to use different weapons and strategies to defeat them. Dedicated to you who are both challengers and retro game lovers.

You are the last survivor. Your friends and allies got killed during a raid. Can you survive the endless waves of enemies?

Hack and slash your way through thousands of enemies in this action-packed casual game with rougelike features. Level up and gain access to a variety of abilities that will either increase your chances of surviving or get you killed even quicker.

Viking Butcher is a wave based arcade game where you fight your way through waves of different enemies and bosses, in an action packed quest to harvest meat and feed your dying town. During this you will face increasingly difficult animals and bosses.

Neon: Eternal is a 2D Retro-styled Arena shooter. Blast your way through seamlessly never-ending action-packed levels of radiating colors while eliminating over 50 unique enemies!

Good old fashioned 2D arcade fun with tons of upgrades and fast paced action where taking risks is rewarded with a higher score. Defend humanity's last source of energy wrench in one hand, laser gun in the other