62%Good matchIdle Monster Frontier
61%23861% positive reviews, Mixed across 238 reviews·Auto Battler · Idler
—







Evolve epic monsters and crush puny humans in this endless idle tower defense game! Unlock, upgrade, and evolve over 150 unique monsters and pets, ranging from cute and colorful flower creatures to epic fire breathing dragons, to assemble the ultimate team against the endless waves of enemies.
Idle Monster TD: Evolved
SteamIdle Monster TD Evolved is an endless idle Tower Defense game filled with over 150 unique monsters and pets, ranging from cute and colorful flower creatures to epic fire breathing dragons. Unlock, upgrade, and most importantly, EVOLVE your monsters to defend the portal from an infinite swarm of invading humans. Strategize the most effective placement of monsters to optimize their powerful abilities. This delightful take on tower defense flips the script, putting you in charge of helpful creepy-crawlies trying to stop human invaders from destroying your base. Strategically place cute allies like "Sun Blossom" for increased gold-production, or use "Skeleton Mage" for heavier damage. And if things get real dicey, just wipe the map clean with a "Rain of Fire" spell! Defeating waves of invading humans gives you upgrades to bolster power, speed, and other stats - and the more humans you obliterate, the more monsters you’ll unlock. Idle Monster TD: Evolved is filled with awesome beasts, ranging from cute flower monsters to big metal robots to scorching fire dragons. Discovering and evolving new creatures is part of the fun. Like any loyal pal, Idle Monster TD takes care of itself when you’re away. Come back in a few days to claim gold and power up your defenses. Those humans don’t sleep - but neither do your monsters. Features:
Idle Monster TD: Evolved is a perfect blend of the Idle and Tower Defense genres. The game is endless and can mostly play itself without you watching. However, an immense amount of strategy is required to play efficiently and place well against your peers on the leaderboards. Go on an epic never-ending quest, explore a fantastic world, battle humans and monsters, and defeat epic bosses in Idle Monster TD: Evolved!
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
All matches
Finding similar games…
Idle Monster FrontierShares Idler · Auto Battler · Clicker , adds Creature Collector61% · 238 positive reviews62%Good match—
Samawa IdleShares Idler · Tower Defense · Auto Battler , adds Roguelite66% · 386 positive reviews60%Good match—
Broken Universe - Tower DefenseShares Tower Defense · PvE · Deckbuilding , adds 2D90% · 284 positive reviews58%Good match—
Epic Auto TowersShares Tower Defense · Auto Battler · Deckbuilding , adds Card Game69% · 297 positive reviews58%Good match—
Fantasy Idle DungeonShares Idler · Auto Battler · Combat , adds Loot69% · 607 positive reviews58%Good match—
Infinitode 2 - Infinite Tower DefenseShares Tower Defense · PvE · Tactical , adds Building90% · 774 positive reviews57%Good match—All matches
The best games like Idle Monster TD: Evolved are Idle Monster Frontier, Samawa Idle, Broken Universe - Tower Defense, Epic Auto Towers, and Fantasy Idle Dungeon.
Match on: filter matches for Idle Monster TD: Evolved by tag