Top similar games like Spaceship Battler Unlimited:

《Geometry Raid》is a rogue-lite space slash shooter game, the game combines classic barrage shooting and sword slash game elements. By driving a two-part ship,you can shoot and swing tail to crush the enemy . The game focuses on hardcore physics simulation and maximizing the melee slash experience.

Refighter is a lightweight Rogue-like flight shooting and strategy game where players will control spacecraft to engage in battles in space, equipping various bullets and upgrading their levels. Face off against a diverse array of enemies and Bosses.

A fast-paced incremental space shooter where short battles fuel permanent upgrades and exponential growth.

Don’t Touch The Rocks is a fast and punishing, incremental bullet hell. Deploy your roster of ships through endless waves of rocks. Upgrade ships, time dashes, aim shots but don't touch the rocks!

lone.AI is a space RPG roguelite. With challenging, relentless gameplay, each run has the potential to boost your ship's power, speed, and more. As a lone AI, fight your way through the solar system and uncover the secret behind the ZOSMA, an alien race that holds power over the system.

Pilot a momentum-driven ship through the cooled remains of dead star systems. Master a growing arsenal, take on 10+ unique epic bosses, and tackle four sectors your way. The world is seed-generated — build and share your own in the free level editor.

A【Pixel style, rouge、type horizontal、 shooting、 defense 】 game

You've been dropped into enemy space. Weave your Starfighter between alien spaceships, lasers, asteroids and bombs destroying as many as you can and collecting valuable coins and powerups as you go.

A linear danmaku shoot-em-up with some visual novel elements. Clear 6 stages across 4 difficult settings, each with unique enemy spawns, bullet patterns and boss phases. The game is structured to have each difficulty cleared in sequence, with the full plot unfolding across each one. 

Gratuitous Shooty Game is a hobby space shooter made by the developer of Gratuitous Space Battles, reusing the art from that game :D.

Hop into your alien ship and get ready for a frantic bullet hell challenge! Use time-bending and cloaking abilities to rescue cows from the clutches of beef-hungry butchers before your energy depletes. Can you abduct the herd and escape the farm alive?

A mouse-only, endless sci-fi arcade shooter with dead-simple controls — just aim and auto-fire kicks in. Shatter asteroids into plasma cores, wield three upgradeable weapons, freeze time, and survive endless difficulty scaling.

A fast‑paced symphony of destruction where you are always outnumbered. Survival demands constant motion, sharp evasion, and smart arsenal management.

Top-down science fiction space shooter game with story inserted into dark space of universe.

Cosmic Drift is a singleplayer survivor-like rougelike game, in Cosmic Rift, you can use weapons and modules to build your own spaceship, defeat enemies, and each item determines your development. choose to upgrade, load weapons, and crush the enemies!

Sci-fi 2D shooter platformer combining the control of a human character and an armored vehicle on the surface of a planet filled with robots and immortal local inhabitants

Gravity Slugger is an arcade-style wave defense game where you use gravity and orbital mechanics to fling projectiles at attacking enemy spaceships. Dodge enemies, gather salvage, and upgrade your skills with chaotic and deadly abilities in this physics-based 2D game.

AREA WARS™ is a fast-paced 2D omnidirectional shooter where you battle enemies from every direction in a constantly changing enclosed area. Defeated enemies trigger chain explosions that engulf nearby foes and boost your score multiplier. Built for short, repeatable runs with score-focused gameplay.

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.

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!

One prisoner. One hit kills you. Fight through 30 sectors of a space prison ship in a top-down roguelike shooter where every bullet can end your run. Reflexes, precision and dash — or die trying.

A trip through slipspace gone awry. Shoot and evade waves of attackers for your freedom in this twin-stick shooter micro-game!

Pilot your ship through the Void in 'Void Reaper'. Face diverse enemies, upgrade your ship, and battle bosses to reach the End Boss in this action-packed void odyssey. Can you destroy the Void and save the world?

This is a rogue-like top-down shooter where you control a spaceship that is sent out to explore the caves on the Moon. Once you enter the caves, you find out that there are enemies. It is up to you to survive against them while also trying to find the path down to the next level of the caves.

Defeat bosses in this bullet hell with unique characters and silly stories. Will you be able to escape the clutches of a contract you signed for the purchase of a yogurt maker?

This is an interesting shooting game. You need to use a variety of weapons to attack the enemy and survive.

Classic 80s inspired shooter

The Nullblade Collection is a group of all the small, polished games made by Nullblade that were too small to be published by themselves.

Dwarf Star: 16 bit inspired game where mercenary go shoot shoot on evil alien guys who were accidentally fabricated by the government. Top down space shooter with a mission based structure. However, you can do these missions in plenty of different orders with different amounts of upgrades.

Cube Space is a minimalist arcade Shoot `em Up game set in space. You control a spaceship and your task is to score as many points as possible by destroying enemies and obstacles in your path.

A Sci-fi Shooter with Pixel-art graphics and various mechanics such as slow motion and dashing. In some levels you also get a special assistant.. You will enjoy this space shooter game. make sure you ALWAYS KILL THEM ALL.

Warspace is a arcade space shooter game.

Our planet's trading port is under attack by an alliance of raiders, defend the station and attack the intruders.

The colorful top-down shooter/bullet-hell

In Astrum Vanguard, a 2D horde-survival with bullet hell components, you pilot and upgrade your spaceship to defeat countless alien creatures. Survive the endless onslaught in the cosmic battlefield!

A top down 2D space shooter bullethell with roguelike elements awaits you. Dodge, weave and shoot your way through waves of enemies while gaining upgrades trying to survive as long as possible.