Top similar games like Project: Firmament:

A top-down action game like no other. Use asteroids to block enemy bullets and smash enemy ships in this physics-based test of skill. Conquer 25 levels, vanquish 5 bosses, and maneuver through 5 tricky bonus waves.

Blast through waves of alien enemies in Project AionIX! Master your piloting skills, dodge, and survive in this fast-paced space shooter!

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

Repel extraterrestrial entities!

Amazing graphics. Countless different units. An addictive Battle Pass. We have none of those things. Just one carrier and as many tiny fighters as you can muster to hold back hordes of enemy fighters and bombers. Victory is not enough - you may win the battle, but still lose the war!

Sanctum Arcadia is a game where you must fight your way through increasingly dangerous zones filled with enemies, hazards, and mystery. Sanctum Arcadia has a unique but still familiar progression system, challenging and engaging combat, all in a smooth Arcade-like experience.

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. *

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.

Cosmic Paradox: Noire is a 2D top-down shoot ‘em up adventure set in a world of two overlapping dimensions. Witness the battle between the Vex Accord and the Oronix Empire, increase your odds of survival with the right upgrades and choose a ship that is best suited to your playstyle.

PhaigeX is a fast-paced "Bullet Heaven" space shooter, tasking the player to explore space sectors and contain a rising incursion of rogue AI-controlled units. Pilot a variety of ships, call in the support craft, and use a myriad of upgrades to lay down heavy firepower towards the enemy forces.

Cosmotrons is a cosmic battleground where skill and strategy collide. Choose your ship and customize its weaponry, engage in epic dogfights, navigate treacherous environments and outmaneuver your opponents in intense, fast-paced multiplayer battles. Are you ready to become a true space ace?

Devileader, a fearsome space demon who once have destroyed countless planets of the solar system is about to be resurrected by his minions and fanatics, who want to bring chaos to the universe. Pilot the agile space interceptor Deviship and survive the terror of this demon lord.

Umbra Galaxy is a sci-fi shoot'em'up where you pilot a spaceship adrift in the restricted space filled with enemies. Destroy enemy generators, fight your way to the bosses and secure the obscure goal in the end!

Neonis is a highly action packed top-down shooter in which you try to survive as long as possible. The game has a couple different gamemodes, such as: Classic, Chaos, Dodge and Flood. Pick up the buffs to have a higher chance of surviving for a longer period of time.

A top-down, 2d space-shooter that pits the user against swarms of alien ships from other dimensions. Destroy all enemies and portals as fast as possible. Battle increasingly tougher enemies through 40 Campaign levels and Endless Mode!

Save mankind's last hard-drive with your rechargeable laser-beam in this tight single-stick top-down shooter!

Dodge and shoot your way through waves of enemies. REVO is a high speed, neon drenched space shoot ‘em up inspired by arcade classics of the 1980’s. Collect pickups, unlock powerful, ammo hungry weapons, and defeat giant bosses.

Choose your ship and command it against an army pitted against you in this wave-based arcade-style bullet hell space shooter. Fight for as long as you can with powerups acquired through the catalog, and blast through everything in your path.

Xentron Attack is a multi-directional shooter. The evil alien forces called Xentron have invaded your galaxy and spreading dangerous meteors and missiles in the space. Fight with smart enemies who calculates your movements. Turn your ship precisely and use the borderless space wisely.

Consume the civilization of the fools who unleashed you upon the universe. Become the Empire Ender.

Blast. Collect. Upgrade. Repeat. Void Miner is a retro-inspired roguelite asteroid shooter where you pilot a space ship and manage an automated tower to destroy endless fields of chaos. Dodge, blast, and harvest your way through waves of asteroids in a fast-paced loop of destruction and progression.

Frenetic 2D action in the style of Space Invaders! Customize your spaceship, face hordes of enemies, and challenge yourself in multiple modes, including Campaign, Arcade, Invasion, and Survival. Upgrade your ship, collect power-ups, and face unique challenges in every battle.

Star Jet Alpha is a top-down space shooter inspired by classic arcade games. Progress through each stage by blowing up enemy space stations while avoiding or destroying enemy missiles, space mines and asteroids. Unlock Star Jet capabilities by completing stages.

Defend Modulea! Dodge bullet hell, combine modules, and fight off waves of enemies with your custom-built space battleship in this roguelike action shooter!

KosmoSquad is a twin-stick arena shooter where you survive as long as you can against an ever-increasing hoard of enemies. Fight alone or with up to three friends and collect star multipliers to maximize your high score. Use your score points to purchase upgrades for your ship and try again!

The patrons of Jonny's Room weep for their loss, it is up to you to dab their tears! Click-and-shoot through combat and puzzles to test your heroic spirit.

Zip and zoom as you zap enemies and steal their stuff. Build progressively bigger, faster, tankier, more agile, more dangerous, more complicated, more projectile-y-ier ships in your goal to destroy and collect everything.

Are you ready to command a range of different units as they battle aliens in a mission-based take on the classic Snake? Select your path to victory!

Classic scrolling shooter with modern graphics. You are self-aware AI. You were created on space military station developing weapons. Now your goal is to break out of the lab and win your freedom.

Neon Fighter is a tiny arcade game packed with lasers and explosions, in which every few seconds you are forced to switch weapons automatically, making you have to adapt quickly to the new situation and re-evaluate your perspective.

Royal Odyssey is a fast-paced, top-down space shooter inspired by classic Shmups. Pilot Prince Zayven’s ship through a deadly asteroid field, upgrade your ship, and navigate the dangers of space to complete his heroic mission.

Classic Asteroids® updated with modern gameplay and perfected controls. Explore hazardous environments and sneak around asteroids to surprise attack giant bosses. Upgrade your ship to use additional power-ups. Single player or fight with up to 3 friends with intense local coop.

Destroy friends, strangers, or bots in this online multiplayer arena shooter. Collect powerups, combine weapons, build your defenses and obliterate the opposition. Hundreds of weapon combinations and multiple game modes.