Top similar games like Down Abyss:

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 pixelated 2.5D RTS meets tower defense as you battle mutated ants in a short campaign. Build walls, place turrets, and hold the line to reclaim Earth's surface in this tactical fight for survival where placement of everything matters.

The skies fall to the CREEP — hostile alien invaders. Humanity's last hope lies in evolving turrets, born from enemy technology. You are the final commander. Hold the line against annihilation. Burn brighter. Fall later. Leave no regrets. The fire must not die yet.

Crash landing onto an unknown planet, Norman realises with no survival experience at all his journey into the unknown may be his last.

Step into the arena with IDUN: Prologue, a thrilling slice of our full-length defense RTS where real-time strategy meets rogue-lite chaos. Fight your way through unique mission objectives with overwhelming swarms of enemies.

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

Infinitory mixes city-building, automation, and tower defense in a in a rogue-lite top-down game. Expand your base vertically in limited space, a strategic planning challenge. Automate resources to produce ammunition and upgrades, crucial for stopping waves of enemies on procedurally generated maps.

Pilot a walking castle-factory built from a crashed asteroid mining ship. Mine and refine resources across a vast open world. Fight alien swarms. Cut deals with the ruthless space corporation that sold your home.

Lead a squad into the ruins, scavenging resources while fending off relentless swarms.​ In this ​​unique, expansion-style tower defense game​​, explore regions, grow your forces, and stop the cataclysm to save humanity.

We Build Below is a roguelike, co-op factory builder that's set on an alien planet. You're part of a rag-tag mining team trying to get rich. Meet the daily quota to keep your mining permit and defend against dangerous parasites to stay alive!

Sky Fields is a Voxel Monster-Tamer. Recruit, battle and trade Goobers to build your ultimate team! You'll need a well-structured team with tanks, supports, and damage dealers to progress far on your journey.

Come and hunt the monsters of the night! Destroy waves of monsters and welcome the dawn of victory!

Build creative machines, rovers, drones or robots. Use them to gather resources, discover new machine parts, source energy, construct bases and battle enemy factions in a physics-based open world.

Endustry is a game about building, exploring and surviving. Build machines and conveyor belts to collect resources. Try to survive with or without enemy waves depending on which game mode you play.

"In 'Random Core Defense,' acquire and enhance cores using limited resources to withstand relentless enemy onslaughts. Defeat powerful bosses and test your strategy to survive until the very end!"

A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!

Machine Mind is an action game in a post-apocalyptic setting with elements of survival and RTS. You will fight, craft modules, build your transport, develop and protect your base. You can control other vehicles to automate operations. Discover all the secrets of the destroyed world!

Build and nurture the universe of your dreams with Land of Babel; an expansive simulation city builder. Construct and manage powerful empires, establish intricate and detailed economies, explore unknown lands, embark on captivating quests, and much more.

Dust Raiders is a management strategy game, set in a lawless wasteland. Upgrade your vehicles, engage in tactical fights against raiders hunting for your resources and gather a crew to rule the area.

As a specially trained explorer in "Deep Crafter", you'll gather resources, design production lines, automate everything, and explore this vast, ocean-covered planet to uncover its secrets.

The kingdom of Cubia call for your help, come to this vast kingdom where you will face strong enemies and hard challenges, you are the chosen to defend the cristals of life and finally bring peace to reign of Cubia.

Astromine is a co-op survival game about scavenging fully destructible voxel planets. Land on planets and gather enough materials to fight off alien creatures, build structures and spaceships, and conquer the solar system

Will you be the savior to purify this land? The Monarch is a lane-defense game where you control a monarch, expand your kingdom, and defend against evil by strategically managing gold resources, recruiting diverse units, and exploring a world filled with mythical threats.

Dawn Apart is a space colony and factory sim with fully destructible environments. Mine, automate, and defend your settlers, or lead a rebellion against the very corporation pulling your strings…

Players can place characters, sell characters, set up automatic skill release, skill synthesis and more by clicking the mouse. The game provides an intuitive and easy to understand interface and operations, so that players can easily play the game.

FortressCraft Evolved is a unique blend of Voxel Landscapes, Tower Defense, Crafting, Logistics, Exploration, Combat and Assembly lines. Players begin by crash-landing on a strange alien world, left with only a small handful of starting machines.

Wasteland Robot: Atavism is a card-based survival game with roguelike elements. You, a pre-war robot, must explore the wasteland, gather resources, craft tools, and fight with the mutants. Your ultimate goal is to bring vanished life back to this land. Until then… do whatever it takes to survive!

Self moving chess, RTS, Meat pigeon game. In the game, you will control the hero, lead a powerful army, release powerful magic, have a strong city defense, and coordinate resource collection to resist the enemy's strong attack

Yuri’s Resolve is a single-player factory-building game set in Mars' orbit. Salvage wreckage, mine Phobos, construct manufacturing systems, and forge a path back home. Operate from the immersive cockpit of your ship as Yuri’s Resolve delivers a bold, innovative take on the factory building genre.

You have discovered ways to quickly move using teleportation and when visiting new lands you will have to protect your portals so that aggressors do not penetrate them.

As a veteran train operator, you must manage the train. What decisions will you make to confront the enemies? Command the train in real-time as it desperately crosses through the chaos of the storm. Manage resources and the train to survive the treacherous tracks and make it to the end.

Defend your castle from the attacks of the night creatures. Collect coins, interact with the elements of the game, discover, explore, learn and survive for 30 days or try again.

Build your sky city while exploring a vast landscape in this Open World RPG City Builder. Combining the methodical construction and management of a city builder; the unique lift, balance, and propulsion needed for a flying city; and the compelling characters, dangers, and adventures of an RPG!

Artificial intelligence has plotted a path to a sustainable future, but humans aren't included. Defend humanity against the A.I. in this instant action real-time strategy, tower defense hybrid.

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