Top similar games like Celestial Seekers:

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

Gather resources, upgrade your equipment, and strengthen your base with up to 4 players. When night falls, fend off waves of monsters and protect the precious Mana Stone from destruction.

Compete in ranked PvP tower defense, survive infinite dimension loops, or defend alongside a friend in online co-op. Build powerful turret combinations, adapt to ever-changing enemy paths, and climb a global ELO ladder.

Farlight Commanders: Prologue is the first mission of an upcoming cooperative sci-fi shoot'em up. Play with friends up to 4. Drive a spaceship where each player has an unique role.

Drive a spaceship where each player has an unique role. Play Solo or Coop with friends, up to 4. A perfect mix of space shoot em up and sci-fi action platformer. Fight in space or ground.

A small accident was occurred in the laboratory, which lead to an apocalypse. Not just an apocalypse, but a 'mos apocalypse'. What's a Mos? It's is a bigger version of a mosquito. Those mos are the reason many people have gone missing. Play as every member of the AAS team and stop the apocalypse!

Slice, burn, toss, zap, grind and gib massive hordes of repugnant orcs in this long-awaited successor to the award-winning Orcs Must Die! series.

Mow down the alien hordes, scout for resources and survive. Dreadnought is a mix of Action Tower Defense Survival and Shoot 'Em Up Bullet Hell where you control the ships turrets & defend against waves of enemies. Choose your weapons, upgrade your ship & brace yourself, the horde is coming.

A great space escape action game where a chicken flees a farm, triggering global collapse. Navigate crumbling 2D terrains in real-time to survive. Experience a perilous escape centered on 'Freedom' and 'Responsibility,' where your quick reflexes are key to avoiding total doom.

You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.

Celestis is a real-time strategy game where the goal is to take control of the procedural galaxy by capturing stars.

Gather exotic resources, build defenses, research new technologies, and explore the mysteries of the void, all while being chased by the darkness from the end of time.

It has been 200 years since the aliens landed and destroyed human civilization on Earth. Cities lay in ruins. Weird creatures and rogue AI run rampant. Somewhere in a dark warehouse, a small combat bot, merely a prototype, is accidentally switched on. Beep boop... What the heck?!

Enjoy some of the best loved Flash games of the past in this awesome time capsule of over 60 Ninja Kiwi classics. Experience a piece of history and play the original Flash games that spawned the worldwide phenomenon of Bloons TD.

Destroy enemies, bosses and everything you see ahead!! Get crystals to buy better starships and get stronger. Have fun in three different game modes.

In Outer Space, you play either alone or with others as a stranded astronaut who needs to repair his spaceship in order to escape from this planet. You can explore space, complete missions, or settle on a planet.

Astro World is a side-scrolling co-op game where the players will have to build their colony on a planet full of danger, valuable resources and alien artifacts, using which the player can explore new technologies and equipment to arm their colonists with.

Travel between planets, gather their resources, upgrade your arsenal, fight bosses and save the galaxy in this 2d action roguelite. Up to 4 players online.

A dark fantasy survival strategy game where you manage villagers, gather resources, and defend a burning campfire against waves of undead in a relentless battle for survival.

"You'll wish you had less fun!"Tower Defense, Jokes and serious story, Choose Your Own Adventure, Do What You Want.Punch zombies in their face, set them on fire, run them over with your car... Do What's Fun.Cross Platform Multiplayer + Solo Campaign. Play How You Like.

Spectral Realm is a top-down tower defense Rogue game, where players need to play the role of an astronaut who has just landed on a different planet to block a constant stream of attacking native creatures and continuously strengthen themselves with the gems contained within their bodies.

Five-star tower defense with unrivaled depth and replayability. The Bloons are back in full HD glory and this time they mean business! Build awesome towers, choose your favorite upgrades, hire new Special Agents, and pop every last invading Bloon in the most popular tower defense series in history.

Planet Gemini is a factory-building and tower defense game. After crash-landing on two planets during an interdimensional journey, fend off waves of enemies and research a portal to survive.

Hold on in the Dungeons - Time to Hunt

Orcs Must Die! Unchained takes the award-winning Orcs Must Die! action tower defense game to a whole new level with team-based gameplay! Bust skulls with your best pals in PvE co-op Survival, or put your teamwork to the real test in Sabotage Mode!

The STAR WARS™ Battlefront™ Ultimate Edition includes the STAR WARS™ Battlefront™ Deluxe Edition as well as the STAR WARS™ Battlefront™ Season Pass.

2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.

WASD : The Adventure of tori is an online co-op game for 2–4 players, where each player can only use their automatically assigned key (W, A, S, or D). Even a small mistake can make the team fail, so talk with your teammates and work together! You’ll learn the rest by crashing into it… a lot.

A pixelated 2.5D RTS meets tower defense as you battle mutated ants in a short campaign. Build walls, place turrets, and hold the line to reclaim Earth's surface in this tactical fight for survival where placement of everything matters.

Control a mighty champion in a cursed medieval realm from a top-down view while building and upgrading towers to fight back waves of enemies. Play solo or in online co-op in this hero tower-defense.

Dive into massive, open alien environments to rescue, recover, and battle in the name of Humanity and profit. Select a mission, customize your equipment, drop, strike, and evac to space (if you can). Enjoy the physics based 1st person tactical shooter in VR or 2D, single player or in 4 player co-op.

Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.

Dive into the Ocean Keeper – a cooperative roguelike where four survival miners defend their Mech Spider, fight with endless hordes of monsters, and dig for resources. Team up with your friends, upgrade between waves, and survive the deep caves, full of treasures… if you can.

Blast off through space, dodge asteroids, and beat bosses!