Top similar games like Space Avenger – Empire of Nexx:

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.

STAR SHREDDERS is a prologue to an extensive, story-rich SHMUP with strategic elements. Play as Clash, leading the Valkyrie force in the onset of an epic interstellar war. This teaser sets the stage for a larger adventure.

Bigwig Flint is a challenging, thrilling, and hilarious top down shooter. A soulfully crafted game with emphasis on perfect classic retro gameplay. Waldemar, the circumcised square, must fight against Bigwig Flint and his many allies. At stake is not only the Universe, but also your sanity.

Darkship Echoes is a tense, atmospheric sci-fi top-down shooter where you pilot a remote drone through a dark, derelict space station, using radar to scan for threats, fight rogue machines, and scavenge supplies to survive.

Will you have what it takes to avenge your father, defeat the evil DreadSkull and save the galaxy? Collect gems and customize your ship to get through six replayable sectors, annihilate your foes and fight epic bosses in this classic styled pixel art shoot'em'up with RPG progression.

Peer beyond the veil and experience the ethereal in The Ghost and The Phoenix, a captivating neo-classical top-down shooter. Navigate the realms between life and death in this supernatural action-packed adventure.

TV Boy is an action packed top-down shooter. Blast waves of weird and whacky enemies with even weirder weapons to rescue the captured citizens of TV Topia and restore peace to the galaxy!

Switch bullet hell into bullet heaven. Jump into a world filled with enemies and powerups, race to harvest all the power you can before the area is consumed by a engulfing fire storm. Try Survival and try and last 3 mins, and top the leaderboard.

Cosmonator is an 'RPG-em-up': a hybrid of classic fast-paced top-down shoot-em-up action infused with deep character building elements. Build up your own unique alien-killing machine to avenge the destruction of planet Earth!

INSPACE 2980 is a stylish and dynamic SHMUP from the 16-bit era of games consoles and arcade machines. Take part in an exciting adventure and save the galaxy! Once again!

ZANAC-like Ultra High-Speed Scrolling 2D Shooter Humanity suffered a crushing defeat in the war against the sentient AI, RA6 the Great Sovereign, losing 70% of the global population. Now, you board the anti-AI fighter MSX-3 Arondight, and launch into the final battle against the Sovereign.

Frantic 4-player laser ricocheting top-down shooter. Keep it casual and enjoy the chaos, or master the surprisingly deep mechanics to obliterate your enemies. Duke it out locally in free-for-all or 2v2.

You have crash-landed on Notrium. Your food supplies are running low, and a pack of predatory aliens have your scent. You're out of bullets for your pistol, your only weapon a handful of rocks. A freezing night is setting in, and you are desperately looking for firewood. Can you survive?

BattleBoat X is a top-down naval roguelike where you pilot a customizable warship across a dangerous ocean of hostile islands. Upgrade your arsenal, unlock powerful abilities, and survive relentless enemy armadas on the open sea.

Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *

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.

Flowing Lights is an Arcade Puzzle Shooter. Each fight is a puzzle. Attack and... Fail! ...Think back... try again! Got it? Improve with each try, there is always a smarter way to win!

Welcome back to 1996! This shared screen space shooter is the perfect 4-player competitive game for some casual fun!

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.

Build up your fortifications, place your cannons, and fire at the enemy forces! Improve your Battle Haven with powerful upgrades while playing through a story campaign comprised of dozens of scenarios with unique mission types and multiple boss fights! Take to the sky and win!

Oldschool action open-world sci-fi with a unique storyline, frenetic battles, crude humor, loose morals and cows.

The earth is being attacked by creatures from deep space! Time to bring the fight back to them! Battle through multiple stages of heart pounding bullet hell action. Evade the onslaught of bullets, rack up massive multipliers, and get revenge for your planet!

Dead End Job sends you into a madcap, Ren & Stimpy-esque world to bust up ghosts. It’s a procedurally generated, couch co-op, twin-stick shooter that straps a vacuum pack to your back and puts a plasma blaster in your hand. For you, it’s just another day in the office.

The Last Archwing is a fast paced, vertically scrolling space shooter. Will you and your friends take up the mantle as Earth's last defenders and thwart the plans of the evil Emperor Zarkhan?

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.

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.

Triangle Service presents the essential arcade experience! Power up your ship, evade enemy fire, and blast your way to the final boss in DeltaZeal!

The vertical scrolling shooter game '.Decluster' and its sequel '.Decluster Zero' are now available in one package.

WE HAVE ALIENS, YOU DON'T—Blast Martian invaders and flying saucers across 30 stages with robotic voice effects. Use your destructible shield, rescue army men for bonus points, and chase the high score.

Killon is a retro shooter that features exhilarating combat, manic enemies and a charged cannon waiting to be unleashed. Fly a starship across the universe and restore the future today.

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!

REPULSOR is a challenging 360° Retro Arcade Shoot 'em Up featuring a color-switching gameplay mechanic.

Ring Runner combines the fast-paced action of space combat with the rich story and skill variety of an RPG.Trek across the universe in a 30 hour long story-driven campaign based on a companion Sci Fi novel, or challenge 6 scenarios alone, cooperatively, or competitively through local or online multiplayer.

Shin Sophstar is a high-voltage remix built for speed and scoring. With 25+ ship variants, mid-run ship switching, and an aggressive, deeply layered scoring system, it delivers a faster, sharper arcade experience for all skill levels.

Rendagor is a 2D Top-down Shooter starring a service bot. Just a simple machine... or something more? Uncover dark secrets in Story Mode or master the challenge of Arcade Mode. Shoot, smash, and demolish enemies and destructible environments with a devastating arsenal.