Kingdom Rush Frontiers

Dungeon Defenders blends tower‑defense strategy with action‑RPG combat, letting you create a hero from four distinct classes to battle waves of enemies and summon defenses.

✦ Best for co‑op lovers craving deep tower‑defense/action‑rpg blend

Dungeon Defenders II blends fast‑paced action, strategic tower placement, and deep role‑playing progression. Team up with up to three friends or go solo to defend Etheria from endless enemy waves while customizing characters, gear, and defenses.

✦ Best for co‑op tower‑defense fans who want rpg loot and cross‑play

Embark on an epic journey to protect the realm from hordes of orcs, trolls, wizards, and legendary monsters. With a vast arsenal of towers, upgrades, and powerful spells, you’ll craft unique defensive strategies across forests, mountains, and wastelands.

✦ Best for tower‑defense fans craving deep single‑player campaigns

Age of Empires: Castle Siege lets you build and fortify a medieval keep, choose from civilizations like the Britons, Teutons, and Kievan Rus, and defend against waves of marauders.

✦ Best for fans wanting a free, quick medieval tower‑defense experience

Defense Grid: The Awakening challenges players to defend vital Power Cores from relentless insectoid enemies using a limited set of upgradeable towers placed on designated platforms.

✦ Best for players who love deep single-player tower‑defense strategy