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.

An automation roguelite where single-use JunkDroids turn out to be surprisingly useful: automate production network, rebuild a broken world piece by piece, and stop the Goofy Goo before it consumes everything. Play solo or in coop.

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.

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.

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.

This is a sci-fi strategy game featuring a Defense Mode focused on tower defense and an Attack Mode focused on combat. The game includes over 30 different buildings and units, all of which can be upgraded through entry editing to enhance their performance and firepower.

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.

Get rich or get eaten. Build underground factories, automate production, and defend against parasites in this 1-3 player roguelite.

A post-apocalyptic survival management game where you lead a camp of survivors, send them on expeditions to scavenge weapons and resources, and rebuild society by constructing and upgrading your camp in a fallen Netherlands.

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.

Command a walking factory-castle in a feudal sci-fi sandbox strategy roguelite. Race across an open world to salvage alien-infested spaceships crashing from orbit. Build industries and defenses, recruit vassals, and decide the fates of competing factions.

Explore, build, defend, and lead the crusade. Gather resources, earn upgrades, build castles, and protect the Altar from waves of minions, all while searching for the "Dragon" and uncovering the truth behind his power. Embody the Sovran in this pixel-art adventure minimalist strategy game.

Survive the apocalypse your way. Choose between deep strategic campaign or classic arcade mode. With 16 heroes, vast customization, and a unique Bonding System, unlock 216 endings across over 6 billion procedurally generated challenges. This is survival, redefined.

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.

Night Frontier is a grim survival-management game where you build a camp, recruit survivors, craft gear, and send expeditions into a cursed frontier crawling with raiders, monsters, and other dangerous threats.

"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!

Survive waves of enemies in Ash Warden, an incremental tower defense where you slowly become overpowered. Unlock new abilities, fight against powerful bosses, and evolve into an unstoppable force against the endless Redgaze hordes.

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.

This game is a pixel-styled, turn-based sandbox game. Collect around 50 items and build or find 100 obstacles accross the world. Build ships to cross water and enter the caves to collect advanced resources. Fight 2 bosses and level up.

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.

A real-time sci-fi 4X strategy game where you explore procedurally generated star systems, expand your empire, manage resources, build fleets, and wage war against multiple AI factions in a dynamic and evolving galaxy.

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.

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.

Gather exotic resources, build defenses, research new technologies, and explore the mysteries of the void, all while being chased by the darkness from the end of time.

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…

Defend the core from cosmic annihilation. Build massive orbital megastructures, summon heavy gunships, or physically grab meteors and crush alien swarms with your bare mouse. Deep progression, 4 game modes, and absolute chaos.

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.