Top similar games like ZSG:

Arsenal Shock is a fast-paced singleplayer arena dual-weapon shooter. Use a multitude of weapons to fight off endless waves of enemies and achieve new high scores in 11 diverse mayhem-filled arenas. Also includes two Playground levels with gravity gun functionality.

Viscerafest is a Sci-Fi Fantasy Singleplayer Arena FPS with minor Collectathon elements. Fight through hordes of aliens and eldritch monstrosities wielding a slew of powerful weapons, juggling your resources, and exploring over 23 intricately designed hand-crafted levels.

A silly fps game.

Play as the Sourman as you venture through the hostile jungles in this Retro-FPS Platformer!

Explore and fight your way through a crashed human spaceship infested with relentless hordes of aliens as you become more powerful with exciting weapon upgrades and powerups in this retro inspired first-person shooter.

Interlopers is a solo-developed FPS inspired by retro classics. Wield big guns, shoot hordes of enemy robots, and explore hand-crafted levels set on multiple alien worlds.

It's the 22nd century: Galactic travel is commonplace, peace is at hand, and the future looks bright - until Goldfire's plan to unleash an army of military mutants shocks the galaxy. Dr. Goldfire, a brilliant bio-scientist whose morbid research led to incredible genetic improvements in humanoids and aliens, has gone power crazy.

Unleash your inner bear in this over-the-top bullet-hell FPS! Embark on a zany retro-futuristic adventure and destroy oil-thirsty robots with an outrageous arsenal. Transform into a bear, wield unique powers, and embrace the absurd fast-paced action of Bears in Space!

Your robot creations have turned against you! As their master you have to destroy every single one of them before they do something strikingly similar to you! Grab your guns from your super high-tech hips and blast your way through their filthy electronic meat!

Wolfenstein 3D took you into the past, thrusting you into a world at war. Blake rockets you into the future where a sinister madman, using genetics to create an army of bizarre creatures, is waging war on Earth. Blake has more of everything!

Even at this moment, our fashionable city is under assault. Baggy pants, dull suits, sightings of socks with sandals. A message needs to be sent, and it needs to be sent in style... Time to serve some good ol' Fashion Justice!

An FPS where you can Shoot Yourself to fight against the Dreamers Disease. Explore the Impossible Spaces of your dreams and go deeper and deeper into them to kill the seed of the disease. Make the most out of your weapons to Survive through rooms filled with enemies using your Health as an Resource.

Captain Wayne is an intense, fast-action Retro Shooter about a sailor with a SHOTGUN for an ARM!! With a cartoony, hand-drawn art style and gory gameplay, you'll have to mow down enemies through 8 action-packed levels to take back what's yours. ARE YOU READY TO RAISE ANCHOR?

Grab a telestarion shotgun and meet Sir Culligan in fury mode! M.E.A.T. II: Absolute Zero is a classics-styilized shooter with a dark atmosphere, an engaging storyline and hordes of enemies to defeat.

A wave-based arcade shooter where between waves you visit a shop with prices that increase with each purchase/rental. Keep your combo high and grab as many coins as you can, and you can delay the inevitable. Powered by GZDoom.

Find a way out of here and get back to earth in FLAW, a retro-FPS inspired by cult classics: Unreal, Quake 2, Half-Life and many others. You and the Flaming Dawn’s passengers were looking for a better life among the stars, you have yet found only despair and darkness.

Robots n Lasers is my first Project to be published. It is a shooter based on fast reactions, aim and a little bit of patience.

Space bounty hunter Falco must explore the solar system in search of his ex-girlfriend and destroy the Black Star cult. Collect bounties, upgrade your equipment, explore planets, crack wise & fight aliens in this GZDoom-powered Retro-FPS adventure.

You are super soldier whose mission is to find captured oil which is captured from evil army from East

(" A fast action sci-fi FPS for everyone! ")

A frantic third-person Team Deathmatch arena shooter. Flank your enemies using hidden teleporters, tunnels, and floating islands. First team to 30 takes the glory. Get your loadout ready, engage in intense matches, and conquer the stars!

Solo or multiplayer, capture control points on an alien planet. Choose the number of enemies you face and enjoy sweet conquest.

Fingerbang: All Bullets Pointin' is a fast-paced FPS inspired by both retro and modern FPS games. Fingerbang combines elements from each in order to create a mix of its own, with a scoring system added on top to gauge your performance through the different levels.

Fight against insane hordes of demons to prevent an evil overlord from conquering Sky World in this first-person survival roguelike shooter. With an arsenal of weapons, perks, and items, the battlefield quickly transforms into a fast-paced bullet hell.

Robots have torn open a portal to invade earth, everyone has mysteriously disappeared, the world has begun to tear apart. Sprint across the skies of robot-invaded Earth as you try to end the invasion.

Travel through the galaxy and beat space demons to a bloody pulp in this intense first-person boomer shooter! Use a variety of weapons and powerful drinks created for one purpose only – to bring destruction and lots of blood.