Top similar games like Under the Ruin:

Use your special ops units to construct base facilities and towers to protect them from the ever-increasing threat of alien invaders in this Tower Defense game with a city-building element! Research their weaknesses and develop defenses before mankind runs out of time.

Geometric Defense is a top-down tower defense survival game that seamlessly blends minimalist aesthetics with deep strategic gameplay. In this unforgiving world of lines and polygons, you are no longer just a remote commander—you are the final guardian at the heart of the battlefield.

A procedurally generated sandbox survival game with RTS elements.

Build, manage, explore, and survive. Develop your village, discover new islands, face threats, and decide how your colony will grow.

Defend your base from all directions in this no-path tower defense. Build, upgrade, and adapt to unpredictable enemy waves, survive unique boss fights and unleash the Quantum Decimator when things get overwhelming.

A game in the genre of management strategy. Here you can build your own factory for the production of robots, and on another planet, and extract resources and test robots on other different planets.

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.

Wasteland Train is a 2D train management strategy game set on a post-apocalyptic rail network. Command an expanding mobile base, trade between isolated cities, recover crystal cores, develop technology, and survive raids, broken tracks, acid rain, and toxic fog.

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.

Collect resources and establish a defense line before dark And then Facing countless enemies

ATC is a base building game set in a post-apocalyptic world featuring urban environments. Build a base across several layers with dozens of survivors. Fight other factions for the control of the remaining production centers and explore the world to find long forgotten resources and technologies.

A 3D first-person action-strategy game with a fresh take on tower defense. Build and manage your village by day, then fight alongside it to survive intense night waves.

Defend against evil snails with a variety of plants in this Tower Defense while YOU have to make constant decisions how your enemies get stronger.

Build by day. Survive by night. A focused medieval tower defense where every decision is permanent.

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.

WE ARE REBELLION is a strategy and simulation game in which you command a warship with a crew of rebels. The game is set in the distant future, in a world that has been ravaged and polluted by capitalist corporations.

A game of base building and colony simulation in a world where night is permanent. Survive, build, explore, repel enemy raids and tend to the needs of your workers and your king.

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.

Defend Weird Hill against relentless zombie waves. Build towers, manage resources, command heroes, and uncover the secrets behind a town that refuses to die.

Eleven Sunrises is an open world exploration and survival RPG/TOWER DEFENSE. Explore a vast post-apocalyptic world and survive waves of enemies.

Aim, fire, and fortify. Shogun's Stand is a fast-paced tower defense where you take direct control of your castle against relentless waves of feudal enemies. Place traps, command the battlefield, and level up to survive!

Grow out your defenses and defend against waves of invasive enemies. Manage resources, explore further out into the wilds, and strengthen your grove. Wild Growth TD combines tower defense with real time strategy and rogue-lite elements.

Last warrior of the Herbheim's clan, it's your duty to defend the last family mine

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?

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.

Build, gamble, and most of all survive in this roguelike tower defense where everything is a tile. Use the slot shop to draft towers and physical upgrade tiles to buff your grid. With hundreds of unique synergies, will you hit the jackpot or let the enemies break your base? Play the odds today!

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.

A turn-based strategy game where your tactical decisions are key to surviving relentless waves of enemy attacks. While battles unfold automatically, your choices before the clash, such as resource management, unit training, and skill selection, are critical to securing victory.

Defend against waves of alien monsters in this unique roguelike action miner. Dig for resources, collect useful gadgets, and upgrade equipment to increase odds of survival – just hurry back before your dome is destroyed!

Asteroid-Riding Termites are coming, but they are impossible to beat by the regular Space Ants. With your power of mixing genes you can try to repel much stronger invaders! Explore vast procedurally generated micro-universes, and mess with nature itself in this mix of Roguelike and Strategy.

By managing your tower during the day you prepare yourself for the dangers of the night, the king depends on you to dominate this territory. Will you be able to survive 30 days in this distant land?