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.

Reapers Inc., is a fast-paced RTS where you lead an elite squad to defend your base against relentless intergalactic threats. Navigate diverse planetary biomes, strategically manage your squad, and use quick decision-making skills to exterminate your foes. Stand your ground, and reap the rewards.

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

Expansion VR is a tower rush RTS designed for Virtual Reality, featuring indirect control mechanics. Collect units, build your forces, and take down your opponent’s base in fast-paced battles against players or AI.

Want a Third-Person, fast-action, 3-way control support shooter? You came to the right place. Good job.

Crossfire: Legion is a real time strategy game featuring tactical action in furious battles across a shattered version of the near future. Raise and customize your army to engage in intense online combat and carve your own path as you rise through the ranks. It’s a new generation of warfare.

Silica blends FPS and RTS in epic, photorealistic battles. Choose to fight on the ground or command from above as humans or aliens. Dive into thrilling multiplayer combat or master strategic command. Are you ready to survive and conquer?

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!

Step into the Wild West future of Cowboy 3030, a third-person shooter with 3D bullet hell and roguelike elements. Play solo or team up with friends, as various heroes with unique abilities. Take on notorious alien outlaws, forge unique builds in every run and rise to become top gun of 3030!

SpaceMine is a third-person tower defence game where your mission is to defend your mining operation by building towers and barriers to hold off waves of local fauna and collect enough resources to meet the company's quota.

Loopbreaker is a class-based, third-person, action roguelike in which you can go it alone or team up with friends to battle back against the alien invasion by collecting powerful items and outpacing the onslaught.

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.

Metal Mars is a real time strategy game where you race to gather resources and build on mars! This game can be played locally with a shared screen with up to three friends (4 players total). There are also 30 challenges to complete against the CPU!

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.

Defend your tower for as long as you can from the aliens invading your space! Level up, earn money and new units, and strategically place them in the grid!

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.

Traverse 'The Arc' in this beautiful, Cyberpunk-styled action rogue-lite as you attempt to reset an evil rogue AI. Experiment with different weapons and augments as you fight hordes of machines programmed for your annihilation! Collect Nanites & power-up after every run either solo or with friends!

Join the Vikings in an epic tower defense adventure! Defend your ship against mythical bosses while mining resources and upgrading skills. Battle solo or team up with friends in online co-op for a journey of strategy, conquest, and victory.

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.

AQ2: Expanse is a massively multiplayer space strategy game. A single persistent universe with open PvP and PvE. Fight for control over the Aquila system's sectors in huge corporation wars, play with everyone, play in a group or play solo with plenty to explore.

Galactic Veins is a groundbreaking survival RPG that seamlessly blends action and RTS. Lost in an uncharted galaxy, you'll explore hostile regions filled with danger and mystery. Harvest resources, salvage technologies, and uncover the secrets of the universe as you fight to find your way back home.

You are in command of the human fleet, searching for asteroids to mine, extract resources and build bases and more ships to defeat aliens invaders. This simple and short action RTS has a full and exciting campaign, and a skirmish mode that allows you to play a different mission on every match.

Confront the alien invaders head-on, but risk dwindling ammo and their sharpshooting abilities, or take the stealthy path, sneaking around, and seeking hidden vents and passageways to outmaneuver his enemies.

A sci-fi shooter set on a space base

A 3D modern real-time war game, realistic 3D style, the classic RTs of the second-generation continuation of End War RTS, stimulates the fast-paced sense of attack

Our ship has suffered an unknown disaster and has been forced to dock on the side of this planet, and all you have to do is lead us to repair the ship and continue its voyage, however, the danger is getting closer and closer without our knowledge......

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!

This is a single player defense game for interstellar strategy. We have established 36 birth points. Players can freely switch birth points to control the size of the enemy. Set the moon as a base. Our fleet can conquer the universe and find legendary warships. Our journey is the sea of stars.

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

A sci-fi space vehicle combat game, where the player must defend their capital ship from being destroyed, while attempting to destroy the alien force's own capital ship!