Top similar games like Littlest Catalyst:

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?

Do you like Tower Defense games with Strategy elements? Well, look no further! We've got exactly what you're looking for! Get ready to defend your settlement from enemies using a huge arsenal of towers!

Customize your Ships, Upgrade your fleet, and Command your way to victory in this ruthless rogue-lite tower defense/real time strategy hybrid. Take on an enemy that learns from your moves and adjusts its own path. Do you have what it takes to persevere?

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.

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.

From the creators of Halo Wars and Age of Empires, Fleetbreakers is an action RTS roguelite with satisfying fleet combat in bite-sized sessions. Strategic depth meets cataclysmic space battles in an ever-evolving campaign that keeps you coming back for just. One. More. Run.

Explore. Mine. Build. Fight. Destroy The Monoliths is a single-player real-time mining tower offense roguelike where you explore a randomly generated map, mine the terrain to get resources, and build turrets to both protect your base and fight monoliths that keep spawning ever more minions.

A rogue-like sci-fi Tower Defense strategy game with infinite replayability!

Lanternia is a survival RTS with roguelite and deckbuilding elements. Build, defend, and expand the village in a dark wood, illuminated only with lanterns.

Defend the core from cosmic annihilation. Build massive orbital megastructures, summon heavy gunships, or physically grab meteors and crush alien swarms with your bare mouse. Deep progression, 4 game modes, and absolute chaos.

Defend your base against relentless alien waves in a sci-fi tower defense strategy game. Build deadly kill zones, unlock new towers and special abilities, and adapt your loadout to survive escalating assaults across a hostile campaign.

Become the last guardian of the kingdom and defend the throne! Fight on the front lines with your sword, build barricades and towers between waves, and upgrade your hero. Throneguard: Last Stand is a 3D medieval action tower defense game.

A survival RTS game where you defend your village against relentless waves of Norse mythological creatures. Build defenses, train warriors, and gather resources to survive as long as possible. If your Town Hall falls, it's game over. How long will you last?

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.

Hexguardian is a roguelite, tower defense game where you build your own maps with hexagonal tiles! Build and upgrade towers, recruit armies, learn spells, construct wonders and place hexagonal tiles to create a path to enhance your defenses. With plenty of game modes and talents to unlock!

It’s time for revenge! Lead the army of dogs to victory in this strategic Tower Defense where managing your towers will be essential. Rebuild the Village to unlock and upgrade ever more powerful turrets! Are you up to the challenge that awaits you?

Design and drop your droids to fight, build, and conquer. Mine resources and outlast the relentless swarm to claim the planet.

Upgrade your engine’s arsenal in this bullet hell, tower defense roguelite featuring the most heavily armored locomotive in existence. Engineer and command the Ironfront Express in a unique take on lane defense where you upgrade with specialized turrets, drones, and tactical abilities.

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!

A hand-drawn survival tower defense on a hostile alien world. No fixed lanes — towers and ice walls reshape the swarm in real time. Command distinct frontline heroes, trigger ecological chain reactions, and defend the Purification Core across expanding battlefields.

Dawn of Defense blends RTS, Tower Defense, and Roguelite progression. In a last defense, lead your tribe against the Empire: Command warriors in battle, fortify defenses, and build an economy as you fight to reclaim your ancestral homeland.

Hexfall is a planet-scale tower defense game where over 100,000 enemies attack at once. Mine the crust, wire the power and arm a hex world against an armada that fills the sky long before it comes down.

A VR strategy game where you are big, powerful and in control. Command your forces to build, defend, and destroy.

A steampunk RTS set in a world ruled by AI. Create autonomous steam-powered machines, manage resources, and rebuild civilization. Explore the ruined surface and reclaim territories abandoned by decaying artificial intelligence systems.

Defend your base by placing towers strategically, forming interconnected systems that depend on one another. Adapt your strategy to different environments and enemy waves, exploiting their weaknesses. In System Status: SuperCritical, resources are scarce and critical failure is always an option.

Iron Vulture is a squad-based tactical Roguelite game where players command a team of elite soldiers in a fight for survival. Choose 4 soldiers, each with unique abilities and roles, and dive into procedurally generated maps filled with strategic challenges and fast-paced combat.

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?

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

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.

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!

Pirate Rush is an auto-battler strategy game. Choose your crew, strengthen them, dominate the battlefield with your tactics, and clear your homeland of invaders.

Strategy by day, tactical tower defense by night. Build a bunny colony, manage resources, and defend against nightly monster attacks in this mix of city building and tower defense. Help your bunnies escape to the stars before the darkness destroys everything.

Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.

A space RTS about decisions, not menus. Conquer planets, link them to fuel your war machine, and level up your empire with randomized perk cards. Crush all opposition.