Top similar games like Alpha Ceti TD:

Gather and build during the day, then hold the line at night as hostile drones assault your base. A top-down sci-fi tower defense strategy game about resource management, base expansion, and surviving escalating nightly threats.

This is a sci-fi strategy game featuring a Defense Mode focused on tower defense and an Attack Mode focused on combat. The game includes over 30 different buildings and units, all of which can be upgraded through entry editing to enhance their performance and firepower.

TAVU is a PvE RTS game with a tactical combat system. Build your bases and defend them against waves of enemy attacks. Upgrade your units and destroy enemy bases to gain new territories and resources.

A unique 3D tower defense game set on randomly generated planets! Place towers to defend against 360-degree attacks, protect mining outposts, and survive intense meteor waves. Earn resources, and face endless replayability with dynamic challenges every playthrough!

Tower Defense with resource- and base management! Waves of enemy robots with special abilities, shield and armor! Mining, refining and production for building and repairing! Environmental hazards and the best: the Orbital strike!

Embark on an electrifying journey through the neon-lit streets of Tokyo in "Tokyo’s Neon Monsters" – an adrenaline-pumping fusion of real-time strategy and tower defence like you've never experienced before!

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?

A strategic and action-packed base survival game where you mine crystals, build units, and defend your base against waves of UFOs. Defeat enemies, gather resources, and unlock new planets to expand your defenses. Are you ready to conquer the galaxy?

Astra Sentinel is a wave-based survival RTS where endless alien hordes relentlessly assault your planets. Build defenses, colonize planets and manage resources under constant pressure. Will you be able to recover the control of the galaxy?

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!

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.

The Spance approaches, a vast and mysterious storm at the edge of humanity. Who shall claim its riches? Brave the perils of the depths in a story-rich singleplayer campaign with numerous distinct factions and bosses. An RTS base builder with huge battles, constant production, and autonomous ships.

Sci-fi tower defense meets ARPG-like hero combat. Build towers then fight alongside them with your hero as you battle through a campaign to uncover the fate of a colonization effort on a distant planet.

Take direct control of your hero on a hostile planet. Build your base, gather resources, expand your territory your way, and survive against the planet’s deadly wildlife.

Gear up and get going! Defend your outposts from waves of alien enemies with your mech. Build and upgrade your base, protecting the extraction of the mysterious planetary system’s rich resources!

Eternal Siege is an evolutionary tower defense based around min-max resource management, efficient use of spells, and (hopefully) building some towers. Start in the Ancient Greek era and defend your way through the human eras (Roman, medieval, modern, etc). Can you survive the human extinction era?

Build towers and learn abilities to defend against swarms of hundreds of on-screen hostile alien creatures. Choose between sets of randomized upgrades that both upgrade you and the alien swarm. From enormous explosions to far-reaching flamethrowers, no two games are the same.

Scrap Metal Heroes Rebuilt is a real-time strategy game where you can customize a set of 4 robots with over 300 parts and fight them against an AI opponent or other players.

A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?

Build towers, shape enemy paths, and defend your outpost from endless waves. Survive escalating threats, destroy falling asteroid hazards, and push your defenses to their limits in Endless Mode.

Terminal squad: swarmites is a game with indirect control where you must erect a chain of buildings, which generate resources for construction or the combat units for destruction of an enemy.

Yãkoana: Dreams of Resistance is a strategy game with roguelite and tower defense elements. Defend your people’s legacy against colonizers, mastering the land and awakening ancient powers in a relentless fight for freedom.

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 Grell as you scavenge the ruins of a lost earth. Rewind, rethink, and reclaim the future!

Astro Industry Wars is a lighthearted take on the RTS genre featuring distinct unit types, base building, economic production chains, and customizable unit rosters.

Build your spaceship, Gargantua. Establish industries, shape the free market, trade between planets, and defend your wealth. A single mistake can collapse supply chains and trigger interstellar economic crises. In Gargantua, war is money.

In Vermin Control, you will enter a thrilling sci-fi tower defense world filled with strategic combat and high tension. Operate a versatile unit capable of both melee combat and construction, deploy and manage 9 unique devices, and protect key facilities from relentless vermin assaults.

Take command of the fleet of starships that is the home to the remnants of your civilization. Manage the limited space of each spacecraft and find the balance between living space, production, defenses, and weapons. Explore the galaxy as you seek refuge and safety from an overwhelming threat.

Defend against thousands of enemies in this explosive tower defense game. Deploy upgradable towers and unleash powerful orbital abilities as you try to protect Earth's first colony world from destruction.

NecroCity: Prologue is just part of the gameplay that awaits you in the full version of the game. Take on the role of the young Prince of Undead, trying to prove himself in the world of the Undead Kingdom. Push back the hordes of monsters and build your fortress! 🔥

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.

Join in on the next gold rush and become a prospector in space. In this unique tower defense you can set up and reposition towers for maximum efficiency and adapt to the environment.

Join our machine legion to conquer the world.

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!

Defend the energy cores from ever increasing enemy waves by destroying their spawn gates. Build tower mazes on Hex grid. Adapt them to dynamic changes in the terrain. Face quirky bosses. Design your own levels and share them on the Steam Workshop.