Top similar games like Portal Defense:

Plant towers, hold the Nexus. A pixel-art tower defense where population caps how wide you can build, gold and mana decide what you build with. Draft augments as you level, spend gems on a permanent power-up tree, and find out how long your walls hold.

You are a Portal Guardian. It is your job to help protect the secret gateways to the Realm. Your people have been kept safe and unaware for centuries, but something dark and relentless has been stirring... Unleash the fury of your towers and magic to defend the portal and the realm or all is lost!

Dive into 1BIT CASTLE: REMAKE, a strategic action-packed tower defense game. Choose heroes and perks to fight off evil monsters. Enjoy captivating pixel art while protecting your treasures in this addictive adventure with endless mode!

A dark fantasy survival strategy game where you manage villagers, gather resources, and defend a burning campfire against waves of undead in a relentless battle for survival.

Summon troops and use magic to defeat mage lords and other foes while surviving attacks from their followers. Learn new spells and recruit troops with unique powers. Venture across the land, battling ever stronger enemies until reaching the evil Mage King.

Hyperscaling, fusions, strategies, synergies and more. A gothic style casual game with a tactic gameplay progressing to an ultimate battle of thousands of monsters.

While a formidable evil emerges, an unexpected alliance is taking shape! It will take the finest warriors of Linirea and the relentless Dark Army to stop it. Beware! Though they may journey side by side the ever-changing winds of fate could swiftly alter their course.

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.

A tower defense game filled with 12 varied levels across 7 biomes and 14 unique monsters with 3 increasingly harder difficulties to challenge even the most experienced of tower defense gamers lurking in their strongholds.

Command your heroes, build unstoppable formations, and hold the line against endless waves. Recruit 40 unique heroes, grow stronger even while offline. Turn your castle into an unbreakable fortress.

Face down swarms of enemies using cards with diverse abilities. Evolve your own unique deck to overcome the trials ahead, and become a quick-witted hero who can conquer any crisis. You will be joined by loyal companions OR charismatic fairies who aren't afraid to use you for their own ends.

Why be good when you can be... bad? Cursed Treasure 2 is a classic tower-defense game, remastered and carefully re-balanced. Build towers of powerful orcs, demons, and undead, and master powerful spells, to protect your precious hoard from all manner of no-good do-gooders.

A medieval Tower Defense x Autobattler Roguelite. Defend your Keep across escalating waves, recruit different unit types, and cast spells from different Schools of Magic. Spend what you earn on a skill tree with over 300 upgrades, and place them on a Decree Bar with many unique modifiers and mults.

You set off with a caravan full of cats to find a safe place to settle! Gather resources, set up a base, defenses, give your cats work to do! Manage your base, expand, defend it from monsters and make it a nice place for your fellow cats!

Build Towers, Defend the Crystal and Survive the night. Crystal Siege is Tower Defense inspired in Kingdom 2 Crowns and Terraria's events. Explore by day, prepare your defenses, and face relentless waves of enemies by night.

By managing your tower during the day you prepare yourself for the dangers of the night, the king depends on you to dominate this territory. Will you be able to survive 30 days in this distant land?

A chess-themed tower defense game with unique strategies, stories, and illustrations!

A thrilling idle tower defense game with automated battles and endless growth! Build your defenses, deploy heroes, and watch your fortress evolve from a humble outpost into an unstoppable stronghold—even while you’re away. P.S. Supports a boss key for instant hiding whenever needed.

Cook meals to deploy mercenaries and hold back waves of monsters! Manage the kitchen and battlefield at the same time in this pixel-art real-time strategy defense game.

This game is a fresh take on tower defense strategy, where it's not just about stacking numbers but engaging in a dynamic play of colors. Change the colors of your towers, enemies, terrain, and magical artifacts to create various offensive and defensive effects through color matching. "Magicolor"

A horde of stupid magical characters want to destroy the stronghold of good magic and become the only owners of magic! You are the only one who can try to stop them!

Defence of Nythrial is a 2D, Top down, Tower Defence / Real Time Strategy Game.

An RTS-Roguelike hybrid with auto-battling troops. Master building placement, swarm your enemies, and smash their defenses with unit-commander combos!

Build a team of mighty sea creatures in a lane-based tower defense where the battlefield reshapes your strategy. Harness environmental powers, trigger elemental chain reactions, and adapt your defenders to stop the corruption.

A tower defense where you raise walls, dig traps and field archers, spearmen and cavalry between waves, then sound the horn and hold your keep as over a million orcs flood the valley. Strike back with the powers of a god while your dragon riders burn lanes through the horde.

A tower defense game where you command an army of skeleton wizards. Unlock multiple magic skills on each skeleton wizard and switch between them mid-battle. Master fire, ice, lightning, and more to survive increasingly brutal waves of enemies.

Tiny Battles is a tactical action auto-battler where battles take place automatically in the arena.

[Previously called "Tiny Towers"] A short incremental game about defending your tiny fortress from hordes of tiny mobs. Place towers, gain resources by defeating enemies, and unlock new upgrades in the skill tree to strengthen your goblin stronghold.

Castle Arena is a classic real-time strategy (RTS) game where you defend your own castle while aiming to conquer the enemy's. Master the rock-paper-scissors dynamics between Warriors, Mages, and Knights, and command your troops with intuitive tap-and-drag controls.

Command your troops through an epic (mis)adventure as you defend exotic lands from dragons, man-eating plants, and ghastly denizens of the underworld -all with flashy new towers, levels, heroes, and more goodies to help you crush your foes in this Fantasy Action Tower Defense game!

Raise a fallen keep by day, and hold it through the dark. Villagers with names and tempers fell timber and work the fields — then take up spears when night comes. A dark fantasy settlement-builder defense game.

Defend the last bastion of humanity with magic and strategy in this intense tower defense game.

Refence is a roguelite based idle defense game, where you can choose heroes and their traits, upgrade your castle, and manage resources to fend off enemies from the Demon Realm who are trying to attack your castle.