Top similar games like Cosmic Stronghold:

Warfactory is an automation RTS where production defines the war effort. Build assembly lines to forge an army of machines, then feed thousands of units into massive real-time battles where every loss must be replaced by your factory.

A classic RTS with a fresh defense-focused gameplay loop. Workers automatically gather resources and manage your economy while you focus on strategy. Expand and fortify your kingdom, command elite armies, and survive endless procedurally generated enemy waves.

A Tower Defense with no respite, no waves, no end. Facing monsters that learn from your placements and adapt in real time to every one of your weaknesses, build and upgrade your defenses freely to create the perfect trap.

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?

2D Strategy game.

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.

Little Kingdom RTS is an indie real-time strategy game set in a medieval fantasy world. Gather resources, build settlements, raise walls, and grow your small kingdom. Command an army of knights, archers, and mages to fight off rival kingdoms, orcs, and undead.

Breach networks, plant malware, steal secrets, and outsmart digital defenses in a real-time strategy campaign that teaches cybersecurity through immersive, hands-on gameplay—no experience or skills needed!

10 Lanes. 1 Base. Classic grid-based tactical defense.Defend Our Land is a high-octane lane-defense strategy game inspired by classic grid-placement mechanics. Build a booming economy, position your units, and hold back relentless enemy waves attacking across 10 front lines simultaneously.

Build & defend a small remote mining base on Taichin XI from the alien hordes. Deploy defenses, upgrade your turrets and get ready for the nightfall. The Unearthened is a classic Idle Tower Defense game where you build towers and prepare for the invasion.

Command massive space battles where thousands of ships clash in real time. Build your fleet, choose a doctrine, reinforce the battlefront, unleash commander abilities, and adapt as unexpected events turn the tide of war in this mashup of strategy and auto-battler.

Roboden is a fresh take on the RTS genre: less micro-control tedium with more units!

Command a swarm of intelligent robots in their quest to save the world. Mine resources, manage, and defend multiple bases. Go on expeditions, fight in auto-battles, research new technologies, and create your army of golems to bring back the light.

72 Seconds is a fast-paced isometric action RTS where tactical squad micro meets ARPG progression. Command specialized units, build defenses, upgrade skill trees, and battle hostile alien threats. Adapt to randomized enemy affixes and survive high-stakes campaign permadeath.

Jump into this tactical tower defence! Defend your dungeon from an adaptive AI that'll respond and react to the dungeon you create. Trap up your treasures, make mobs and magic, and defend your dungeon!

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.

On an alien world, you must defend yourself in this unique base-building tower-defense game. Build a base by placing blocks, turrets and traps in order to survive the hoards of aliens.

Defend galaxy against Alien invasion in the RTS offline game with roguelike fun

A chill, top down automation game about mining asteroids down to the core. Build bots. Figure out logistics. Automate yourself out of a job.

Defend your cult from the police and military. Build shrines, raise followers, and prepare for the attack.

Prepare for an epic battle in this captivating tower defense game! Build, defend, and triumph as you strategically place towers, manage resources, and upgrade your arsenal to fend off relentless waves of enemies.

Lustle is a small RTS game featuring economy building, combat, unique factions, procedural maps, and a cheerful pixel art style. In the game, you can play as factions such as bees, termites and in future other insect-based nations!

Embark on an adventure with Loot Express Delivery Service, a 2D pixel art game. As the commander, your goal is to retrieve valuable items from a distant planet. Utilize your skills and strategy to complete missions and guide your company to prosperity.

Delve for materials, machines and curiosities in this game inspired by Dungeon Keeper and Pikmin.

Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.

Pixel Punk is a strategy tower defence. In pixel Punk you build different turrets that will protect you against the never ending waves.

This is an RTS game less than 300MB, but it already contains many interesting game mechanics, There are many types of soldiers and tactics for you to choose. Support LAN online battle. Special Thanks for Pixel Art <Tiny Swords> UwU~ I hope you will be interested in more RTS games after playing :)

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.

Build your defense base to repel alien invaders. Atahion is a strategy and tactical defense game in which you have to extract resources, build defense towers and use bonuses to complete the mission.

Orcdom is a minimalist tower defense game with full freedom in tower placement. Defend your crystal from waves of orcs attacking from all directions. Plan your layout, time your spells, and unlock new strategy modes in this fast-paced tactical challenge!

Welcome to the frontlines! Build towers, muster armies, and conquer the map. Challenge yourself in the single-player campaign following the Chroma Wars, survive relentless waves in solo defense, or battle it out in local matches against friends and AI bots. Victory comes with the last HQ standing!

Mob factory is an tower defense and automation game for the lazy adventurer. Smelt down enemy loot into turrets & factories to automate an ever expanding dungeon from the comfort of your tower.

Loop Defense is a single-player sci-fi tower defense game. Build enemy routes with base walls, assemble a modular defense, manage limited loadouts, energy, and research, face armored, flying, carrier, and wall-breaker units across a star map, or challenge Endless Mode.

Keyclash is a simple tower defense roguelike about building on keyboard keys and surviving as long as possible.

On a forgotten world, confront a malevolent machine intelligence. Extract minerals, build factories, power up the railguns, and arm the missile batteries. Defend the Fortress Omega against the alloyed nightmare.