Top similar games like Siege of Centauri:

Millennium Conflict: a real-time strategy game set in space where you must act fast to stop attackers from conquering your universe. With 40 levels, weapon upgrades, and new generals to recruit, it's up to you as the only surviving male to lead your troops to victory.

Take on the role of commander and protect Earth from the relentless Drone invasion in this exciting tower defense game. Strategize and strengthen your defenses by utilizing a variety of towers, abilities, and elemental upgrades. It's up to you to lead the charge and save humanity from destruction.

Button Pop is a 3D Tower defense game fused with Button mashing chaos. Construct the deadliest defense strategies by unlocking powerful traps and turrets across a variety of terrains, while building your very own button with the rewards of your adventures!

Engineered to Purpose is a new tower defence game where you custom-design towers to defend your base, with millions of builds to explore and refine. Set in the far future, E2P's story of posthumanism, family, and change will open new worlds to explore and survive.

On planets occupied by robots, mine resources and escape while fending off their attacks! The Ark's survival is entirely in your hands. Many elite crews with abilities will assist you in your mission. The various turret modules are always doing their best to defend your base without your attention.

A Co-Op FPS game with base building in a post-apocalyptic world. Craft weapons, build barricades and automated turrets, unlock new gear and items for visual customization and kill all savages and mutants trying to destroy the remnants of human civilization.

The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.

In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.

Flip Tower Defense on it's head in Flip TD. Flip your world upside down to defend with towers, upgrades, modifiers, powers, and more. Build custom worlds with the in-game world builder and share them online to compete for high scores in the community leaderboards.

Join our machine legion to conquer the world.

Ablight is a classic real-time strategy game set in an alternate universe where dieselpunk, cyberpunk and medieval aesthetics meet. Join the rebellion against the zealotic Inquisition, who have been mankinds scourge for hundreds of years and fight a war for survival. Freedom is within touch!

Playroom Invasion TD invites you to an exciting tower defense adventure set in a nursery filled with toy characters and towers. Take part in fun and tactical battles against evil toys trying to take over your room which is full of towers with different features.

Space Grid Tournament lets you take part in the most spectacular sport of the future. Spawn your robotic players, fight to take control over every tile of the field, and lead your team to glorious victory. Fast, tactical, and brutal shot of fantastic sport emotions!

The core gameplay of Cubic Defender is strategy planning and resource management, with the aim of deploying heroes and defensive towers to eliminate invading enemies.

Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?

Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.

Welcome to the frontlines of D.O.T. Defence! Build towers, muster armies, and conquer the map. Fight local matches in 1v1, 2v2, or free-for-all battles against friends and AI-controlled bots. Victory comes with the last HQ standing!

Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!

Novalance is an online isometric PvP shooter set in a futuristic universe where Mecha dominate the battlefield. Win battles to earn credits, purchase new mechs and weapon systems, and customize your loadout to match your playstyle.

Robowars is back on Steam! Fight off troops of droids for freedom and honor in our classical tower defense game. Lead the forces of the Solar Union to protect the peaceful planet of Praymos from the aggressive Trade Confederation.

Temporal Titans is a Tower-Defense game with Time Travel. Send mechs back to previous waves to prevent your defeat, and protect your salvage team from the monstrous Krell as you scavenge the ruins of a lost earth. Rewind, rethink, and reclaim the future!

Defend humanity from the Athral Vanguard in Athralis Tower Defense. As the S.O.D.S. Commander, deploy manned turrets and advanced equipment from orbit to stop alien invasions. Experience intense sci-fi tower defense action and strategic gameplay.

Bunker Farmer is a farming arcade game about defending your crops from some unwanted guests. You the player will have access to technology to Grow, Harvest and Defend your crops. When things get a bit too much or you need to research an item its time to return to your bunker for safety.

TEOM is a roguelite strategy game that draws inspiration from the tower defense genre to innovate it through dynamic levels, interactive elements, and high replayability. Follow Aiden and his friends on an unexpected journey through this vibrant world.

Defend crystal from the relentless bug invaders! Carry out missions by developing strategies in real time to gather energy and strengthen structures or summon companion units.

Elementia is a strategy-focused rogue-lite tower defense game set in a fantastic universe. In a world where warring nations have suddenly formed an alliance against a common enemy, you will defend your nation and develop strategies for victory. Defeat your enemies and become a hero!

Are you prepared for a thrilling toy army tower defense adventure? Welcome to the Toy Shire! Battle diverse foes in various locations, defend your family, and repel foes from your area. Save the world by strengthening your defense with toy towers!

Dive into the strategic depths of "Crystal Nexus: Alien Siege," where the essence of tower defense merges with the ingenuity of deck-building. Operate from a corporate space station, leveraging your wits and a futuristic arsenal to counter a relentless alien threat.

Byte Lynx is a fast-paced RTS with no units. Build defenses, dismantle your enemy, and steal their buildings in this deeply tactical building combat-based strategy game. Expand your arsenal across a series of diverse levels!

Sphere Invasion is Sci-Fi Tower Defence. Build your own road and defend it with 7 unique towers.

This is more than just an odd looking strategy game, it is a strategy platform. Genetically engineer amorphic creatures & buildings, in real time, in an endlessly open world that adapts to your playstyle. Share, and even battle your designs. How much will they be worth?

An RTS/Action 3rd person shooter that lets players take on hordes of enemies while defending their base. Use strategy, unique abilities, tech research and combat skills to be victorious. (Currently in Pre-Alpha stage, 1 developer team)

The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.

Voxel Vanguard is a dynamic strategy game set in a vibrant voxel world where players must strategically expand their territory by placing interconnected towers. Navigate through voxel worlds, strategically deploy towers, and connect them with tethers to fend off threats and conquer new territories.