Top similar games like Astral Guardian:
Astral Guardian $9.99
Build various towers to resist the large number of monsters coming from the wormhole, by extending their walking routes.
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Natti$7.99
“Natti” is a roguelike tower defense game unfolds in the Otherworld of Korean folktales. Place defense towers, collect equipment, and strategically utilize various heroes to defeat all the monsters and protect the Otherworld with “Natti”, goblins in form of animals.

Citadel: Forged with Fire$14.99
This massive online sandbox RPG features elements of magic, spellcasting, building, exploring and crafting. As a newly minted apprentice of the magic arts, you will set off to the dangerous world of Ignus. Tame mighty beasts, forge alliances, explore uncharted territories or fight for dominance!

Broken Universe - Tower Defense$9.99
Get ready to rethink all your defense strategies! Build barricades to stop monsters, or lure them into a maze and attack. A variety of stages that change each time depending on how you play them.

Wurm Unlimited$29.99
Wurm Unlimited is the standalone version of the fantasy sandbox world Wurm Online, the MMORPG where the players are in charge! A pioneer in the ideas of player influence, crafting and adventure, it is now one of the most deep and feature packed true sandbox experiences available.

Artificer's Tower$14.99
Are you a master of the magical arts? Prove it in this cozy colony-sim wizard tower defense game. Curl up and build your base, keep your mages happy, craft recipes, research new magic spells, and defend your wizard's keep. Will your Artificer's Tower be the envy of all your magical friends?

Throbax TDFREE
Throbax TD is the "Tower Defense" game you are looking for: Help Ughlar fight his way through 50 levels, buy over 100 upgrades and get all of the 50+ achievements.

Warchief$24.99
Warchief is a brand new kind of Action RTS. Choose your hero, recruit and customize your armies, explore the jungle, and seize strategic objectives to become the ultimate Warchief. Ready to dominate the battlefield?

Becastled$14.99
Becastled is about building and defending your castle from sieges in a fantasy world!

Alien Shooter TD$9.99
Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!

Skyland Defense$11.99
Defend your skyland! Grab a tower and fight off the pirates. Build traps to slow down their march. Construct utility buildings and expand your village. Play alone or join your friends in this in-depth strategy and tower defense game!

Uphold The Realm$6.99
Uphold The Realm is a VR Tower Defense game that lets you take command of your wargames style campaign map to interact with levels and manage towers. When your ready - Shrink down onto the table and use your archery skills to defend against the oncoming hordes.

Color Tower DefenceFREE
All kinds of enemies entered the battlefield! Build your defenses against hordes of enemies!

Craft The World$18.99
Craft The World is a unique sandbox strategy game, the mix of Dungeon Keeper, Terraria and Dwarf Fortress.Explore a random generated world populated by dangerous creatures, build a dwarf fortress, gather resources, and craft all the items, weapons, and armor you need.

Reign Of Kings$9.99
Struggle to survive in a harsh medieval world. Hunt wildlife, mine resources, build structures, and craft weapons and armor in order to protect yourself. You may form a guild, bring war to all opposition, and try to seize the throne and become king!

FrankenStorm TD: PrologueFREE
Roguelite TD: all towers & enemies start the same, but you have 1 choice per wave affecting BOTH and stacking up for dramatic variance. Gradually salvage and make some choices permanent to build deeper strategies. Also a unique mazing challenge where wires and towers must be linked to a power source

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!

Arrival of Beasts$9.99
Discover one of the hardest tower defense games with strategic elements, individual gameplay and challenging mechanics. Play together with your friends in co-op mode, create a team and compete with other players in the online ranking.

Towers & Goblins: The Last Stand$11.99
Build towers, manage resources, and lead units to defend your kingdom against goblins. Every decision you make determines your kingdom's fate.

Defend from Candyland!$7.99
Step into the world of Defend from Candyland! where retro tower defense meets strategic depth. Plant and upgrade trees, use powerful buffs, and reveal enemy paths to shield Eden from waves of candy invaders. Master the challenge now!

Botanical TD$3.99
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.

Milky Way TD SURVIVORS AUTOBATTLER RTS$7.99
Milky Way is a unique mix of Tower Defense, RTS, Auto-Battler and Survivors. Build your base, choose random upgrades and use powerful skills to survive against hordes of enemies.

Dofense$12.99
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.

Base Raid$4.99
Base Raid is a 2D base build and defence strategy game. In the game your goal is to build the best base to crush the enemy before it crushes you. You have a specific amount of in-game money to build your base and use it to fight against enemy bases.

Medieval Towns$19.99
A multiplayer game in medieval setting about survival, diplomacy, building of towns and conquests. Try to survive in wild nature, gather resources, create or join guild, build town and fight for glory or resources!

Ash of Legends$14.99
Grapple anywhere, build towers, place traps, shoot guns, launch arrows, and throw sabers, to defend the spores from hordes of the evil empire. Includes native Meta Quest with Link and Steam VR support.

Craft Hero$4.99
Gather resources by day, build and recruit by noon, defend your village by night! A new minimalism sandbox survival with countless new ideas – Craft Hero

Permanence TD$1.99
Tower defense that will make you think

United Penguin Kingdom: Huddle upFREE
This free version of the United Penguin Kingdom covers the content from one year of in-game time. A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales.

Eye of the Void: Unleashed - Tower Defense$2.99
The goblin tribes of the realm have united against you and the power of the Eye of the Void. Build towers, fortify walls, construct gold mines to gather resources, and cast powerful spells to fend off waves of determined goblins and their allies who seek to destroy you.

Bitesize Heroes: Forest Defender$3.99
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.

Milky Way TD SURVIVORS AUTOBATTLER RTS: EarthFREE
Milky Way is a unique mix of Tower Defense, RTS, Auto-Battler and Survivors. Build your base, choose random upgrades and use powerful skills to survive against hordes of enemies.

Lil' Airport$2.99
Lil' Airport is a an idle airport management game. Build and manage your own airport directly on your desktop. Expand your airport from a small airstrip to a bustling travel hub. Schedule flights, delight passengers with amenities, face emergencies - or just watch the planes go by.

The Last Roman Village$2.99
The Last Roman Village is a strategy defence game that gives freedom to develop a whole Roman city from scratch and to wisely choose the way to defend it. The game allows players to experience variety of options and creativity.

East Defense$4.99
East DefenseYour duty is to protect the castle by strategically building & upgrading towers to stop monsters from coming their way!

Tricky Towers$14.99
With your brilliant robe and magic powers, it’s time to build some Tricky Towers! Stack your bricks in this land of fable, whose marvelous tower will be the most stable? Battle your friends and rise to fame, in this frantic physics game.

Winter and People$1.99
Winter and People mix tower defense and city building genres with its minimal style; It is a tower defense game where you try to survive in cold cities.

Rise to Ruins$14.99
A brutal godlike village sim that melds the god game, management, and tower defense genres! Fight off hoards of monsters at night, and expand your village in the day time. Inspired by games like Black and White, Rimworld, and Dwarf Fortress but not quite like any of them.

Just Sign!$3.99
Just Sign! is a dynamic tower defense for 1 to 4 players. Mine, chop, refine, build turrets and refill them with ammo.

Mechanical Trap$5.99
Mechanical Trap is a 2D horizontal tower defense game with gravity effects, with a variety of defense towers to collect and use together, a rich map, each enemy has a different way of restraining, and each defense tower has a different function.It's challenging. Do you dare to accept the challenge?

Invader TD$2.99
Invader TD is a side scroller tower defense, where the player is in the role of an alien race with the purpose of infecting and dominating the earth, you must protect yourself from the attacks of the humans, who are trying to destroy you.

Order Of The Gatekeepers$9.99
Online Co-Operative Tower Defense with endless build options and a heavy focus on rewarding creative strategies. With so many Levels, Towers, Abilities, Items, & Builder Specialties every match can be a different experience!

Eternal Elements$9.99
Melt sand, shatter glass, and rust iron in this epic elemental tower defense game. Combine elemental effects to beat powerful materials. Use cunning strategy and wit to take on impossible challenges. Unlock new abilities and power as you embark on this difficult journey.

Tower Defense: Defender of the Kingdom$2.99
Defender of the Kingdom: Tower Defense is a colorful medieval tower defense strategy game where orcs and their horde attacked the kingdom and now the fate of the kingdom is in your hands, defenders!

Tower Ball - Incremental Tower DefenseFREE
Build turrets to destroy balls & earn cash, spend it to upgrade and get stronger

Antkeep$1.99
A living ant tower defense, upgrade abilities to increase competitiveness. Combine different ant species to form an aerial defense and kamikaze attacks. Deploy ants to collect honey. Breed ants to expand your territory and compete against red fire ants to save the natural environment of the island.

Dungeon Defenders$14.99
Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!

Farm for your Life$9.99
Your community was taken down by a heavy storm which caused an apocalypse and unleashed the living dead. Together with the other survivors, it is your task to rebuild and to allow that sustainable life can still be assured. Cultivate your farm and manage your restaurant to provide food and deal with all the zombies.

Kingdom Two Crowns$19.99
In Kingdom Two Crowns, players must work in the brand-new solo or co-op campaign mode to build their kingdom and secure it from the threat of the Greed. Experience new technology, units, enemies, mounts, and secrets in the next evolution of the award-winning micro strategy franchise!

Whispers in the Forest$13.99
Whispers in the Forest is a single-player base defense strategy game where you must build, upgrade, and defend your base against demonic creatures in a cursed forest. Manage your resources, lead your troops, and survive the darkness of the night as you fight to protect your only hope for salvation.

Goblins of Elderstone$24.99
This Goblin Tribe Simulator brings a challenging blend of chaos and creativity to the city-building genre. Build dwellings, manage your resources, defend your goblins, and grow your tribe to face other races and even the Gods! Do you have what it takes to control the chaos and rule the unruly?

Cartonfall: Fortress - Defend Cardboard Castle$4.99
Build your own cardboard fort and defend it against swarms of enemies. Gather resources, craft weapons and set traps. Be creative, improvise and experiment to win.