Top similar games like Spacebase Siege:

Command from above. Fight from within. Viridian Corp. is a single-player sci-fi Action RTS and third-person shooter. Lead the Free Cluster, capture mining zones, direct your forces, then Mindwalk into a soldier and enter the battle yourself.

You are the commander on the last line of defense. Hold your base, recruit soldiers, and launch them via cannon to another collapsing front. A cooperative (1-2 players) tactical defense game where your decisions decide the fate of two battles.

Fight across five solar systems in a story-driven mix of tower defense and space combat, where every planet you save brings you closer to the truth and to those you thought were lost.

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.

Build your base, command your army, and wage real-time PvP war on a living conquest map. Clear a frontier of monsters and alien UFOs, join a faction, team up with friends, and climb the seasonal ranks. A classic base-building RTS with modern military firepower, ad-free on desktop.

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.

Become the champion of the ultimate galactic show in this intense blend of Tower Defense and tactical assault. Manage resources in real-time, deploy your AI squads, and annihilate your rivals before billions of spectators in Quantum Fight: Aero 2299.

Fly out solo or with up to 3 friends to scavenge resources, fend off swarming aliens, and race back to defend your dying space station from the waves you dragged home. No winning. Just how long you survive.

Prime Domination is a real-time strategy game where you build your base, manage finance, produce powerful military units, and battle against AI or other players in large-scale multiplayer matches with up to 10 commanders.

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

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

Star Wrath is a multiplayer space extraction-action where you design your own ship and fight other players for resources in intense PvP and PvE battles.

Lead a squadron of pilots in combat, working for a ruthlessly efficient mercenary company. Satisfy management's quotas while fighting against under-supply, an onslaught of monsters, and rival mercenaries; optionally keep your subordinates alive in the process.

Expansion is a sci-fi Action RTS where deck-building strategy meets fast-paced VR duels — battle AI or challenge real players.

The Hive is a strategy game with RPG elements where you assume command as the insectoid hivemind. Build and expand your underground colony, harvest resources, and evolve your swarm using DNA. Will you survive in this hostile yet beautiful underworld?

Single player tactical action real-time game with active pause to plan orders carefully. Based on real war-time experience of living Russian veterans of war in Ukraine. It's all about modern conflict small infantry groups with some armored vehicle and drone support as well as real events story

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?

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.

Experience cinematic space warfare in SALVO, an action packed real-time tactical combat simulator. Command your flagship and engage in intense battles in a war-torn solar system. Play a story-driven campaign, or forge your own destiny across the dangerous frontiers.

Get ready to protect the entire solar system from an unprecedented threat - the D'Ahari, a race of insect-like aliens. Control an entire fleet of spaceships, trade with other races of an Alliance, and develop your own space station.

A classic RTS featuring traditional base-building, resource-driven warfare, PvP, skirmish, and a powerful, easy-to-use Mission Editor. Build your base. Secure the ECO. Conquer the battlefield.

Create your own ship designs and command them in tactical, real-time multiplayer battles. Outsmart your opponent through smart positioning, specialized weapons, and ships built around your strategy.

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!

Fight hordes of aliens and visit desolate moons in this arcade-inspired third-person shooter.

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!

Silver Wings puts you in the cockpit of WW2 era aircraft, commanding the skies and your own forces as you choose your approach to multi-stage operations influenced by real historical events.

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.

Lead thousands of units in this large scale modern war RTS as you manage economy and logistics, build your war machine, and fight across millions of procedurally generated scenarios, or jump into the battlefield controlling any unit in first or third person at any time.

A unique mix of RTS and Action: take control of a powerful combat mech, build your base, raise an army, and fight alongside your forces on the battlefield.

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.

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......

Battle Halls is a tactical action game in the style of plastic toys, where using the strength of the squad, weapons, hero skills, as well as your dexterity and strategy, you have to defeat all enemies and capture all locations.