Top similar games like USG:

Fuel is life. Survive relentless alien swarms in this fast-paced arcade shooter featuring auto-targeting weapons, deadly terrain navigation, and score-chasing chaos.

Defender's Squad is a sci-fi vertical scrolling shooter 2D that combines 7 different levels. Play Solo and pick one of the 3 ships to kill enemies and save the earth from aliens.

100% Clean Inc. is a top-down Roguelite shooting game. Follow the new intern as he explores the cleaning company building, where things seem to be going wrong.

A broke bounty hunter. A sarcastic robot. 1,000,000 credit debt. Star Scrap is a chaotic twin stick space roguelite. Blast through increasingly difficult waves of enemies to pay it off.

SHOOT 'EM UP!Starlight: Eye of The Storm is a 2D Vertical SHMUP set in a 3D background. Unleash your special powers, upgrade your weapons! Take on 10 Arcade stages or 15 Campaign missions! Drift (auto-pivot mode) behind your enemies and take them on with style!

Fast top-down space shooter with varied missions, relentless enemies, powerful ship upgrades, and most importantly, fire.

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 fast-paced roguelike space shooter where every credit counts. Fight through dangerous sectors, upgrade your ship mid-battle, and convert your earnings into permanent power. Because when you die, you keep what matters.

a mysterious virus is inhabiting planets around the cosmos.. Together with your dragon Ringo, you voyage through space, dodging projectiles and eliminating the spreading virus.

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.

Irradiant Skies is an arcade roguelite blending brick-breaking and bullet-parrying combat. Reflect enemy attacks, chain powerful upgrades, and master unique ships as you ascend through waves of enemies.

Escape the Maze of Malice in this frantic 2D top-down shooter!

Retro style 2D vertical scrolling simple shooter.

Start off as a weak ship with a simple attack and fight through waves of enemies, earning currency in order to purchase upgrades for your ship. The never ending waves of enemies grow in number, power, and variety as you progress. Purchase upgrades to keep pace with them.

Grab the fate of all life in your hands. Blast your way through the cosmos, destroying monstrous cosmic beasts and the space cultists summoning them, on your path to stopping your mother from unleashing the chaos realm upon the universe, in this sci-fi cosmic horror bullet-hell, STARR RINGER.

Alien Slayers is a roguelite time survival game where you hunt down hostile alien creatures on various planets. Grab your weapon and survive to the end to become the strongest alien.

Destroy hordes of strange machines that have invaded the forest. Yawnoc is a chaotic top-down shooter roguelite focused on immersion into the world of Conway's Game of Life and other cellular automata.

Repel extraterrestrial entities!

Bullet hell about destroying computers. Be the ultimate bug you ever wanted to be. Swarm those capacitors and break the boards! [THIS GAME IS STILL IN DEVELOPMENT]

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.

BroodStar is a classic arcade shmup with roguelike elements. Acquire crazy item combos, encounter strange events and fight challenging bosses on a quest to destroy the living planet, the BroodStar.

A brutal score-attack bullet hell where survival is not enough. Graze bullets, stack multipliers, and chase the leaderboards in Boss Rush and Infinite Arena. No meta progression. No unlock treadmill.

XenoFeud is an insane top-down twin-stick arcade alien shooter, where you must survive hordes of alien intruders while defending a mysterious object in space.

Defend the galaxy from endless cosmic horrors. Dash and blast with fast, burst-based piloting, unleash powerful overdrives, evolve your ship with each unique run, and push your skills to the limit.

Marimoth is a short shoot 'em up that puts in control of a moth whose shots bounce off the walls. Calculate your aim, evade enemy attacks by learning their patterns and collect coins to power up.

ShapeNeon Chaos is an old school style space-shooter. You are a ship facing off waves of deadly enemies. This game was made to give you a shot of adrenaline in a couple of minutes. Lots of bullets and neon in an arcade psychedelic shooter!

The humanity succumbed against the power of a aliens intergalactic empire, but managed to organize and establish a resistance army. Join the rebellious seekers of peace and help them defeat the evil that haunts the Earth.

Fast paced Top-down shooter! Smartly use IRCM to evade the constant barrage of bullets and missiles and destroy everything that stands in your way.

"Epsilon Zero" is a fast-paced top-down action roguelike shooter where every mission is an all-out assault. Use devastating weapon combinations, unlock powerful upgrades, adapt your tactics, and exterminate everything standing in your way.

"You're Invading My Space" is a fast paced, space themed, wave survival game where every run is unique. Fight off endless procedurally generated enemy swarms, upgrade and unlock your ships and weapons, and push your limits as this angry galaxy throws everything it has at you.

A 2D vertical shoot 'em up that lets you upgrade your ship with an insane amount of options. From missiles and pods to specials and shields, you can upgrade every bit of your ship from guns to thrusters.

die listening to techno bangers.

Combining retro puzzles and a arcade space shooter. You and your crew found strange materials in the galaxy core to upgrade your ship to the most powerful. While collecting core materials you came across something unbelievable ... The Core Message. The Core Message changes everything.

Stellar Space is a new take on a classic arcade game with a modern, rogue-like, form for new players to enjoy!

Harness the power of Greek Gods in this intense vertical rogue-like shooter. Command divine Mechas, brew sacred potions, and unlock permanent upgrades at Hephaestos’ Forge. Battle mythical hordes and challenge the Titans in a fast-paced quest for eternal glory!

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