Top similar games like Spacebase Siege:

Fascinating and entertaining space action game.

This game combines two game operations: real-time strategy and shooting. You're both a commander and a soldier. It is totally up to you to win the war by good tactics or superb marksmanship.

Fight in online battles for one of two teams or play with bots.

Manny TD is a hybrid tower defense and third-person shooter with random in game elements. Join and get your personal high score!

Prologue to Orange Cast, an atmospheric adventure in a large-scale setting where Soviet and Western science fiction are combined itself. As a humanity’s elite space trooper, you take on a heroic, action-packed adventure throughout the galaxy.

Join forces with rebels and their technologies to have a chance to restore freedom in a world that has fallen to the uncontrolled dominance of supreme artificial intelligence.

In the future, humans conquered the stars and colonized other planets. In the bowels of the icy planet, scientists have discovered a natural and safe source of energy. But at the same time, they awakened an ancient alien life form. There is a conflict on the planet. Volunteers come to the rescue.

A Sci-Fi war game based on future alien-tech invasions and a international world hero. Defend your planet by eliminating the enemy humanoids and their powerful leader.

A Sci-fi procedural spaceship exploration game, where you unlock new weapons and abilities as you complete missions and gather bounties. Deploy your advanced tactics mech unity, in this 3rd person shooter game!

SPACE TEK, Command, Construct, Collect!Space Tek is an exciting free to play online starship combat game. Players build their dream ships out of a range of unique blocks, and tailor their ships. Then put the ships to the test alongside or against players and Ai in a multitude of gamemodes!

A 3D Sci-Fi space shooter game where you fight against big flagships and bases to unlock the secrets of the world.

Tunnel Blast is an action game where you control a pilot flying through a series of tunnels. But they are dangerous, and you need to blast your way through them!

Battle Cry of Freedom brings brutal real-time first and third-person combat set in the 19th Century America, presenting players with the opportunity to re-fight the American Civil War as either the Union or the Confederates.

A cooperative action tower defense and third-person shooter where vision is mutually exclusive. Place towers to shine light on the endless horde of bugs, or use augmented vision to fight alongside defenses. Equip powerful modules that unleash your strategy's true potential!

On a deadly road trip into darkness, control the path of a single bullet and unleash a fury of vengeance on the sinister cult that ruined your life in this tactical puzzle-shooter.

A Sci-fi wave-based game with a variety of weapons and bosses every 10 waves. Also has a shop after every wave with health, ammo and upgrades. WASD movement and keys 1 for Blaster and 2 for Rifle.

A sci-fi shooter set on a space base

Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game

3D third-person shooter game. Control a tank using a keyboard and mouse. Go through various maps and destroy bots on your way. Fight with two main bosses on your path to complete the game.

VR real-time strategy blending action, exploration, and decision-making. Command high-tech base, elite squads, and ferocious units for intense warfare, testing your intelligence and maneuvering skills.

Join the Home Dogs in this 12 player PVE game. Become the heroes the world needs by resolving world conflicts with sheer force as you gun down all opposition in pursuit to achieve world peace.

In Dawn of Anarchy, your skills, determination, and combat prowess will be put to the ultimate test. Will you be the hero the world needs to quell the uprising and bring an end to mechanical tyranny? Prepare for the battle of a lifetime amidst the dawn of anarchy.

A sci-fi roomscale VR Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with a handheld drone. Build and collect resources and help evacuate your crew from the alien planet.

Stormgate is a next-gen real-time strategy game set in a new science fantasy universe. Command mechs to defend the Earth or invade it as the Infernals. Explore an ever-evolving campaign, group up for 3P co-op vs. AI, compete in 1v1 or 3v3, or get creative in the editor. Welcome to the future of RTS!

SpaceSeals is an exciting third-person shooter set in a spaceship captured by hostile robots.

Arena Shooter goes Third Person! CrossPlanet is a Sci-Fi shooter where players go head-to-head in Player vs Player Multiplayer, or squad up with friends and dive into some PVE action against waves of enemies.

Rift Sweepers is a 1-4 player co-op third-person shooter. As a Rift Sweeper, you will travel between dimensions and clear missions to protect the universe from collapsing. You will encounter strange and wacky enemies in odd and exciting challenges ahead.

Prepare for the climactic finale as Montenegro returns for one last mission. Use your stealth skills to rescue your beloved daughter, Merche, and unravel the trilogy's thrilling conclusion amidst intense action and suspenseful gameplay!

Technitive is a first-person open world tower defense set in 2043, where you advance from primitive tools to machines and modern weapons. A colonization attempt is set on an Earth-like planet after an extinction threat to Earth. Colonize the planet and save mankind!

In this cooperative third-person shooter, you take control of the P.U.N.K.’s. Rebels that shoot their way through an evil factory with high-powered paint blasters. Sabotage the tyrannical corporation and fight your way through their factory to achieve the highest chaos score!