Top similar games like Polygon War:

In 2060, nanoweapons leaked from an Antarctic ancient ruin transformed Earth lifeforms into deadly bioweapons. As human forces retreat, you—a top frontline commander—are tasked with leading experimental 3rd-gen mech units to defend the most critical zone until civilians evacuate to near-Earth orbit.

Sentry System is a tower defense roguelike where you collect, modify and upgrade your sentries while progressing through a network of challenging encounters.

Flaregate Network is a roguelike deckbuilder with RTS-inspired spaceship combat. Build a unique deck, then pilot it—and your fleet—to victory!

A turn based Sci-fi Roguelike where players explore the deep mines on a distant planet, find/trade equipment, battle monsters and try to survive.

Swarm Survivors: Endless Siege is a light roguelike bullet-hell idle shooter. You play as the last survivor of the Swarm, fighting to stay alive under the endless siege of alien fleets. Build overwhelming power and face wave after wave of relentless challenges.

Who would’ve thought that a roguelike, card game, and tower defence could come together over a basket of food? Travel through magical lands filled with hungry creatures, collect cards and artifacts that shape your strategy with every run. Escort your food through this whimsical fantasy world.

Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.

Tower Defense with resource- and base management! Waves of enemy robots with special abilities, shield and armor! Mining, refining and production for building and repairing! Environmental hazards and the best: the Orbital strike!

Battle the virus in survival like game. You play as a tiny cell, fighting off infected cells and gathering resources to upgrade to infinity.

Ender Chariot is a relic-building roguelite game. You will choose one of four heroes to start a new adventure. Gather resources in battles, purchase relics, summon members, and form your unique chariot team. Charge through randomly areas with three different styles until victory.

This is an adventure game with a pigeon-raising style. Here, you can tame over 130 unique monsters, unlock their exclusive skills, and aid you in your adventure journey. Continuously challenge yourself to unlock more exciting content.

Unleash the power of specialized towers to annihilate hordes of monsters in this idle game with roguelike elements. Collect gold, level up your towers, face powerful bosses, and refine your strategy with an evolving skill tree.

Star Armada is a spaceship auto-battler where you assemble and command a fleet of capital ships and fighter squadrons. Unlock powerful new ships and outfit them with a range of turrets, energy shields, and starfighter hangars. Engage in automated battles, carefully timing unique abilities to win.

A defensive game that combines hero collection and base building, focusing on real - time strategy and a thrilling sense of combat. Use your wisdom to repel wave after wave of enemy attacks!

Manufacture golems, and defend yourself from ruin.

Moonlight Chess is a turn-based tactical auto-battler where you must assemble your own army, defeat waves of enemies, and vanquish the evil ravaging the kingdom!

KNOW YOUR ENEMY. FIRE YOUR CANNONS. A spaceship management and combat game. As the Captain of Silver Wolf, command your crew and use your energy strategically. Change your future with your decisions. Arm your ship and strengthen its shields. Survive in the solar system full of dangers.

Rogue Fable III is a traditional rogue-like game which combines the depth, complexity, and challenge of the genre classics with a shorter, more tightly focused game length.

Kill your enemies, possess their bodies, and take their abilities as your own in this turn-based procedurally generated death labyrinth.

Hold on in the Dungeons - Time to Hunt

Squad Arcade is a roguelike deckbuilder with a fast-paced arcade twist, where robots collect ancient heroes and myths to fight in tactical card battles. Every run challenges you to build powerful decks, form unique squads, and master unpredictable challenges.

A single-player turn-based dungeon crawler. Take control of a lone hero and explore sprawling dungeons, fight dangerous monsters.

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.

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.

Command a fleet of customizable ships in this roguelite strategy autobattler. Liberate planets to unlock new ships and powerful upgrades. Engage in strategic battles, manage your fleet, and face escalating challenges as you fight to free the universe through increasingly difficult galaxies.

This is a innovative roguelike TD game made with the 『CliCli』. No need for path planning or tower combos—just one tower! With almost 100 weapons, you’ll be mowing down foes and dominating the battlefield. Enjoy the rush and let off some steam!

A minimalist sci-fi tower defense. Buy soldiers and upgrade them, defeat waves of enemies, hold your lines.

Find the best combinations of projectiles and components to create the ultimate weapon. Mutate and upgrade your components to create stronger weapons. Fight wave after wave of monsters to reach the top.

Crush monsters and get loots in the classic turn-based style of deep dungeons and high adventure! Grow the Dungeonmans Academy, a bastion of learning that expands as you play. Serious gameplay with a light-hearted atmosphere, combining the feel of history's great RPGs and dice-slinging adventures around the tabletop.

Play an auto battler, a traditional roguelike or a tower defense and experience the world of Grandura. Reuse what you've learned about the creatures, abilities and items that are found in this world and apply them in different game modes.

Build up your defenses and ward off any threats to your expedition in this rogue-like tower defense game. Manage your resources well and make sure no to overstay your welcome on this planet, or be prepared to face a never-ending onslaught of crustaceans...

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.

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.