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.

A procedurally generated sandbox survival game with RTS elements.

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.

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.

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.

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.

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.

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?

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?

Plant, harvest, and defend your farm! Build turrets, gather resources, and fight off waves of enemies. And most important defend your CHICKEN!

You are the acting captain of the last war vessel of humanity. Now the ship is your home and refuge. "real-time roguelike spaceship sim"

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 deep starship colony sim. Build your starship, manage air, water, food, fuel, energy, temperature and psychology to keep your crew alive across vast distances. Closed-loop system in space. Mining, wiring, plumbing, in-ship factory, (alien?) radio signals & translation, diplomacy, combat, and more.

In this side-view pixel-art world, you captain a landship—survive by combat and scavenging, and grow your modular vessel into your own city. Among roaming cities and underground enclaves, records and wreckage hint at why people live this way… or how you become wreckage.

Take control of your outlaws, rob, steal and fight your way to riches. Build up your camp and recruit more outlaws so you can take over the Kingdom.

TINAD is a unique tower defense game where you defend your retirement home from overeager heroes. Play as the dungeon itself. Deploy traps, summon minions, and prove you’re just trying to enjoy your golden years in peace against heroes who can’t read the sign and assume every dungeon is evil.

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

The world after a nuclear war. Manage the settlement, learn technology, make decisions, produce weapons, ammunition, organize defense, raid for supplies on other areas, do not let residents die, survive the nuclear winter.