Top similar games like Crystal Guardian:
Crystal Guardian $1.99
Crystal Guardian is a tower defense game featuring survival and time control elements. Defend the crystal against enemies from different biomes every night, and during the days, gather resources from various biomes to alleviate hunger and thirst, aiming to survive until the 100th day.
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Tiny Tactics$9.99
Tiny Tactics is a Tower Defense game with a heavy focus on mazing, with mechanics inspired by the Auto Chess genre.

Sporadic SpireFREE
Defeat hordes of enemies in this aesthetic tower defense game. The random terrain generation provides a beautiful environment and a unique experience every time you play.

Tactical Craft OnlineFREE
Tactical Craft Online - MMO sandbox with tactical role-playing elements with a large open fully destructible world, with clans, trade between players, construction limited to the players imagination, various crafting, mining of multiple ores, farming, fishing, a massive tech tree etc.

Ad Astra: Sci-Fi Tower Defense$4.99
Lose yourself in an indie solo-dev. treasure that harkens back to arcade classics! All while thumping along to killer retro-inspired beats by Ovani sound. Embark on an epic tower defense adventure against awe-inspiring machine monstrosities, made by a devoted gamer for devoted gamers.

Summoner Apprentice$1.99
Delve into the mystical art of summoning alongside Feylin, the last of the Ancients. Begin your journey as her new apprentice and learn how to summon minions, outwit your enemies, collect relics to enhance your powers and overcome the dreadful obstacles set in your path.

Phoenix Hope$11.99
Phoenix Hope is a pixel art 2D real-time, side-view strategy game in which you must develop your colony during the day and repel waves of monsters at night.

Myriads: Renaissance$19.99
Myriads: Renaissance is a turn-based strategy game with city-building and 4X mechanics. Set in a fantasy world made up of thousands of floating islands, you must grow your capital and expand your kingdom. Resist waves of powerful corsairs and construct defence towers to survive their incursions.

Unholy Alliance - Tower Defense$0.99
Enemies from this world and the dark one fight together in an “Unholy Alliance” to destroy your Extractors. Get ready to face and defeat enemy hordes using a vast arsenal of towers and special powers at your command in a unique tower defense game that will push your tactical skills to the limit!

The Ancients$19.99
The Ancients is a turn-based survival strategy game where you lead a prehistoric hunter-gatherer tribe through the last ice age. Survive the elements, hunt fierce animals, migrate to new continents, advance your technology, make social and political tribe decisions, and evolve your civilization.

Kingdoms Reborn$19.99
A city builder with simulated citizens, set in a procedurally-generated world map. Grow your kingdom through the eras from a tiny medieval hamlet into a prosperous global empire! Cooperate or compete in real-time with your friends in multiplayer mode.

Oriental Dynasty - Silk Road defense war$5.99
Experience the perfect combination of tower defense and the historical plot of the Silk Road, so as to bring an amazing epic game adventure experience! You will follow our protagonists in a strategic battle on the Eurasian continent! Come on, buddy, this epic fantasy adventure needs your help!

Microtopia: PrologueFREE
Become the hive mind of a robot ant colony in this free version of Microtopia! Use pheromone trails to create, automate and optimize supply chains for your ants to follow. Collect resources, produce goods, feed your queen, grow your colony and fly out to expand the species!

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.

Breakwaters: Crystal Tides$19.99
Survive in a world ravaged by massive Titans and an ever changing ocean sim. Displace water to find resources for building and crafting unique items. Swim, sail, and fly to explore new islands and fight Titans.

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.

Minimalist Tower Defense$4.99
Collect resources and establish a defense line before dark And then Facing countless enemies

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!

Bioguard$2.99
Bioguard is a tower defense roguelite with a biological theme. Help the immune system using a variety of towers, skills and special cards. Develop your strategy to protect your body from invading pathogens and prevent their passage to vital organs!

Grim Nights$2.99
Your village must survive for 13 days! Gather resources, expand, explore the underground for riches, and train soldiers to defend against hordes of the undead.

The Territory of Egg$2.99
The Territory of Egg is a unique twist on tower defense game. You need to build defense lines with egg warriors to protect the Holy Egg, the core of all eggs. Remember to upgrade your Tech Tree with the resources you've collected and unlock more skills to fight against the evil monsters.

Stellarcraft$9.99
Stellarcraft is an exciting sci-fi tower defense game where you explore planets, gather resources, and fend off enemies—solo or in 4-player co-op. 🚀

Elven City Simulator$10.99
Revive civilization and save it from mysterious darkness. Story-oriented colony simulator with elvish flavor and indirect control. Demo available!

Kingdom Rush Origins - Tower Defense$14.99
Command your elven army and defend mystical lands from sea serpents, evil sorcerers, and wave after wave of gnoll tribesman, all with the help of brand-spankin’ new towers, heroes, and spells to fend off every last baddie.

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.

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.

Bulwark$6.99
Bulwark is a medieval-themed 2D pixel tower defense game with a dynamic block-based building system. Construct and fortify your castle, manage resources, and recruit troops to defend against waves of enemies. Build, strategize, and adapt in this unique blend of fortress construction and combat.

Prison Tycoon®: Under New Management$19.99
Build an intricate prison, hire the best staff, and pamper your prisoners to create the perfect rehabilitation facility in Prison Tycoon: Under New Management

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!

Roots of Yggdrasil$19.99
Build settlements, explore the Nine Realms, collect artifacts and upgrade your deck to reach the top of Yggdrasil in this post-Ragnarok roguelike city-builder! Can you survive the end of the world?

Tomb Of AnuBI0S$9.99
Tomb of AnuBI0S is an unique 2D tower defense-platformer with an Egyptian Sci-fi setting. Defend the AI deity RAm from waves of undead "Organics." Upgrade your arsenal from weapons to walls, turrets, and your player capabilities. Immerse yourself in meticulously crafted levels and defend RAm!

Block Tower TD 2: PrologueFREE
Block Tower TD 2 is a strategic game in the roguelike style with original innovations. Build worlds from blocks, choose random upgrades, each game will be unique.

溯源之塔/Tower of Traceability$0.99
You control a magic tower floating in the sky, falling from the sky against enemies coming from all sides, choosing the right weapon mix for different enemies, using health and mana in a planned way, reducing their wear and gain more rewards.

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.

Freaking Meatbags$9.99
Land on a planet, pick up some rocks, leave before the solar system explodes. Oh, and don't die in the nightly robot attacks! Freaking Meatbags is a humorous real-time strategy game that's all about building a base, mixing meatbag DNA, then convincing those dolts to help you gather resources.

The Riftbreaker: PrologueFREE
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

Greed$11.99
This is a tower defense and RPG game, harvests resources, explores the world, finds new towers, collects rare material, builds and updates towers, and defends against monsters. But the more resources you harvest, the stronger the monster.

Guardians of the Sanctree$19.99
You and allies, avian inhabitants of Sanctree City, build structures and production lines on the tree, crafting weapons to fend off subterranean insects. Defense is just the start—dig deeper, destroy nests, fortify new defenses against escalating threats for an impregnable stronghold.

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.

Dungeon Defenders: Awakened$29.99
Dungeon Defenders: Awakened is co-op Tower Defense combined with epic Action RPG combat. You’re able to join forces with up to four players to take on a never-ending army of orcs, demons, and dragons! Are your defenses strong enough to save the world of Etheria?

They Can't Stop All Of UsFREE
D.A.B. Your foes in co-op & PvP battles. (D)efend bases with weapons and skill. (A)ttack with clever AI armies. (B)uild amazingly creative defenses.

Laser Defense Extreme$1.99
Laser Defense Extreme is a Tower Defense Game, with a Killstreak System. Place your "Towers" strategically and eliminate the incoming enemies.

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.

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?

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!

Golems TD$9.99
Golems TD is a tower defence where you can design your own minions and control your hero in 3rd person. Each map consists of 2 teams fighting each other. Sending or destroying golems earns you resources. First team that will manage to push through defence wins.

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

Unknown Planet$3.99
Your spacecraft has crash landed on an alien planet. Explore this unknown world, mine the resources, build your base, grow farms, craft equipment, fight off the alien lifeforms and survive.

Starmancer$14.99
From a small 2-man team comes a unique space station management sim. Take on the role of an A.I commanding a lost space ark. Try not to let your crew run amok and wreck the place.

Infinite Waves TD$8.99
How many waves of enemies can you repel? Build and upgrade towers, sharpen your swords and arrows, prepare spells and fight off all the enemies, by yourself in single-player or with friends in co-op mode!

Royal Wars: Farm TDFREE
Royal Wars: Farm TD is a free-to-play tower defense game where strategy meets luck. Place randomly selected towers, merge them to unlock higher tiers, and defend your kingdom through multiple levels. Plant crystals, manage resources, and prepare for epic battles.

Blockscape$9.99
The ultimate block building game.