Top similar games like Sentry System:
Sentry System $7.99
Sentry System is a tower defense roguelike where you collect, modify and upgrade your sentries while progressing through a network of challenging encounters.
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Stop Them All$2.99
A minimalist sci-fi tower defense. Buy soldiers and upgrade them, defeat waves of enemies, hold your lines.
The Undead War$2.99
Take the role of an army commander for the habitant of nardia. select the desired type of units and install it on the battlefield, in this roguelike auto battle simulator, use tactics, magic, recruit new fighters, use tech tree to unlock powers and upgrades to defeat the undead.
Cosmic Raze$3.49
Cosmic Raze is a sci-fi tower defense strategy game. Control advanced weapons, build powerful synergies, and then blast away as aliens attempt to conquer Earth. Between rounds you'll earn unique augmentations, purchase and upgrade a huge variety of weapons, and unlock powerful synergy bonuses.
Tiny Battles: PrologueFREE
Tiny Battles is a tactical action auto-battler where battles take place automatically in the arena. Prologue is a demo version of the Tiny Battles game, where 2 of the 5 factions and 3 of the 15 enemy opponents are available to play.
SUPRACORE$4.99
SUPRACORE is a roguelike base building game. Build your base, upgrade it and defend against ongoing waves of enemies to gather more resources and expand your Core!
Axon TD: Uprising - Tower Defense$19.99
Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.
Block Strategy$10.99
Block Strategy is an RTS Base Defence roguelite with a fully destructible world. Build your base and find fuel to power your reactor before you're overrun by an onslaught of enemy robots.
Raging Titan$4.99
Build your towers, plan your efforts, watch out for changing paths and strike back against the alien invaders in this challenging tower defense game!
Mind The AbyssFREE
Mind the Abyss is a fast-paced movement shooter that combines fourth-dimensional abilities and ever-evolving weaponry within an alien planet.
Rogues Don't Cry$14.99
A game for those who played hundreds of strategy/roguelikes and want something new and wild. Build your army, explore a harsh random world, fight varied battles, die, start over, experiment, break the game, become godly and destroy everything. Be proud.
Thukothea Defender$4.99
A strategic tower-defense where you control powerfull drones. Unlock new tower and use specific technologies to defend your base on Thukothea!
Lims$4.99
Manage your lims to fight through the ring and reach the king. A sci-fi robot management game. Position your lims around your lam to fight through groups of enemies. Research, craft, and manage to succeed.
Labyrinthian Lockdown$6.99
Klondor is in grave danger of being overwhelmed, enter the Labyrinth, prepare your defences, defend your Mana Crystal and annihilate the incoming waves of enemy forces that pose a threat to the Kingdom.
Swordship$19.99
Swordship is a roguelike where dodging is your best weapon. Trick your enemies into killing each other, steal containers to upgrade your ship and unlock new ways to play. Dodge, dive, die, learn, repeat.
Engineered To Purpose$9.99
Engineered to Purpose is a new tower defence game where you custom-design towers to defend your base, with millions of builds to explore and refine. Set in the far future, E2P's story of posthumanism, family, and change will open new worlds to explore and survive.
Expansion VR$14.99
Expansion VR is a tower rush RTS designed for Virtual Reality, featuring indirect control mechanics. Collect units, build your forces, and take down your opponent’s base in fast-paced battles against players or AI.
Button Pop$10.59
Button Pop is a 3D Tower defense game fused with Button mashing chaos. Construct the deadliest defense strategies by unlocking powerful traps and turrets across a variety of terrains, while building your very own button with the rewards of your adventures!
十字防守(X Defense: Timing TD)$2.99
Strategy, timing and fortune: Novel and immersive tower defense game experience!
Terra Exodus$9.99
Defend the evacuation of Terra on the losing side of an alien invasion. This experimental action strategy game breaks out of genre norms to provide fresh mechanics to strategic gaming.
TD Worlds$10.99
TD Worlds is a dynamic, highly strategical game that challenges your skill. Build an impenetrable defense and get ready to plunge into a new, unknown world to uncover its secrets. Use Twitch integration and play with your viewers.
Galactic Garrison$6.99
Galactic Garrison is a sci-fi, turn-based tower defense game where you defend your base from relentless alien waves on Mars. Deploy soldiers, build barricades, and upgrade defenses to withstand attacks. Earn powerful reward cards to gain strategic advantages and outmaneuver your enemies.
Red Sea$4.99
Red Sea is an intense Real-time Tactics game where you control a small team of vigilantes in increasingly challenging battles. It features a Scriptable Tactics system that mixes auto-battling with manual overrides and has a ton of powerful ability interactions to discover.
Just Desserts$4.99
Select your commander and play a series of tower defense levels as you progress through a randomly generated map. Find shops to unlock upgrades for your towers and commander, and fight mini bosses for bonus rewards to prepare for Count Cakeula.
Maze Keeper$8.99
You are the guardian of a cursed labyrinth and must prevent an adventurer from escaping with the help of your monsters. But the adventurer keeps trying again and again, accumulating levels and getting stronger... Survive to the highest possible level !
Warpips$16.99
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!
Dampf - The Cozy Tower Defense$6.99
Cozy tower defense meets stylistic futuristic steampunk. Manage resources, buildings & towers. Unlock perks to further specialize yourself. Plan your defense & survive all enemy waves.
Slime Siege$13.99
Level up, find perfect item combinations, mow down hordes of slimes or fail trying! Slime Siege is a vibrant tower defense with rogue-lite elements. Strategize and create unique item builds for every map to endure the onslaught. How long can you survive?
Tower Knight$4.99
Tower Knight is a deck-building & tower defense strategy game. Build your deck to strengthen your position, level up your knight, and win by capturing enemy towers.
Automatrons - Tower Defense$3.99
Join our machine legion to conquer the world.
Zenith Armada$9.99
Embark on interstellar conquest in a 2D space strategy game. Command ships, explore galaxies, engage in real-time battles, and customize your fleet. Traverse hazardous star maps, unlock factions, and strategize for victory. Are you ready to conquer the cosmos?
Fate of the World$9.99
Fate of the World is a dramatic global strategy game that puts all our futures in your hands. The game features a dramatic set of scenarios based on the latest science covering the next two centuries. You must manage a balancing act of protecting the Earth’s resources and climate versus the needs of an ever-growing world population, who...
Darwinia$9.99
Darwinia blends real-time strategy, action, and puzzles with a unique gesture-based control system. Save the Darwinians, battle viruses, and restore order in a retro-inspired digital world. Winner of multiple prestigious awards, including the Seumas McNally Grand Prize at IGF 2006.
Oftalmogarden$7.99
Oftalmogarden is a fast and chaotic roguelike sci-fi eyeball monster shooting game. Shoot your way through hordes of enemies, collect upgrades, weapons, and gadgets to grow stronger, but accumulate curses over time. Speed is your best ally to survive, the sky is watching and death will not wait.
Last Outpost$9.99
Last Outpost is a minimalist Base Building & Strategy game where you build and defend your outpost in zombie apocalypse.
Terra InfernoFREE
Humans are ruining the lush world of Terra Inferno! Embody nature's wrath in this Turn-Based Tactics meets Resource Management Game, evoke natural calamities to devastate the human onslaught!
The Hero We Need$8.99
Create your own distinctive towers, enhance only the necessary components, and experiment with them in quick battle mode. THWN enables you to craft each tower individually using runes that determine the projectile and its effects, giving you the freedom to adopt strategies that suit your play style.