Top similar games like Strong Fortress:

Defend humanity's last hope, pilot a powerful mech, in Frontlines Crisis! A battlefield swarming with insects makes strategic and combat decisions crucial. Each decision will determine your fate. Defend humanity's last sanctuary, fight fiercely, and uphold human honor with wits and courage!

Acid Planet is a caustic blend of horde-survival, tower-defense and strategy. Build, fight and evolve to survive against rampaging swarms of monsters and fearsome Kaiju.

Vampire Ascent is a casual real-time strategy survival game with rogue-lite elements where you play a vampire lord. Survive endless hordes of enemies and defend your castle by building your own vampire kingdom. Choose from a variety of traits and upgrades to create unique builds.

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

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!

Vanquish the Kaiser's Imperial Fleet using timing, tactics and telegraphy in MORSE, a single player typing game that teaches you the lost language of Morse code. Can you change the world with the push of a button?

RTS Football is a game with all the classic mechanics of a 2D Real Time Strategy game but with added (American) Football elements. Battle and blow up the opposing robots in pursuit of scoring touchdowns and not turning the ball over.

Classic RTS gameplay fused with a modern roguelike. Shape your build each run by assembling an evolving arsenal of powerful units and facilities. Harvest resources, build out your base. Raise your army and call down orbital strikes to overcome the forces threatening your survival.

{{An RTS inspired by the classics of the past!}} Making up for it's subpar retro graphics with fun gameplay and modern multi-threaded tech enabling huge battles to run smooth... Featuring singleplayer challenges, skirmish, sandbox, 10-player multiplayer & workshop modding.

Negative Energy is a tower defense game with basic RTS mechanics, where your goal is to defend the construction of a Dyson sphere, while fighting against waves of hundreds of enemies ships.

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.

Destroy. Salvage. Repair. Upgrade. PROFIT! A real-time tactical experience where you command your own mercenary outfit of mechs and mercs and adventure through randomly generated missions filled with rewards, glory, and bitter defeat.

Warpips is the ultimate quick to learn but amazingly deep tug-of-war strategy game. Deploy the right composition of soldiers, tanks, helicopters and planes in this tight, streamlined strategy-focused war game. Compose the best army, research the right tech; overwhelm your enemy!

Cosmic Stronghold is a mix of the genres RTS and Tower Defense. Your primary goal is to keep your space station alive for as long as possible, so that it can harvest the nearby mines for precious mineral ores. You will be faced with waves of enemies, getting stronger and stronger for each wave.

From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.

About：The solar system was invaded by aliens of unknown origin. The earth has fallen. As the commander of the surviving space fleet, return to the solar system from outer space and save the earth.

Skirmish Mayhem is an action strategy game where you equip and upgrade an arsenal of weapons, construct a base and build an army to defend against waves of enemies. 3 factions are waging war, fight for your faction, unlock powerful commanders, tech-up and become an all-powerful force.

In this Coop Platformer Defense game, you must defend your HQ from enemy hordes by building your base and defenses wisely, while you fight using weapons & items acquired and upgraded along the way.

Mullets, missiles, and monsters fly in a hectic, intergalactic resource race. Build bases, set traps, mine & destroy terrain, command troops, pilot vehicles, level up, unleash chaos, and master unique hero abilities. Multiple game modes keep strategies fresh. Choose your faction.