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Idle Monster TD: Evolved

Idle Monster TD: Evolved

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.

Released Nov 16, 2022 Developer Monstermob USA, INC Platforms Windows · Mac IdlerTower DefenseStrategyAuto BattlerTime Management
View on Steam ↗ Free (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

76.1%positive1,253 reviews
Recommended · 3 found this helpful

“Idle Monster TD: Evolved is an entertaining tower defense game. The monsters are cute. The in-game purchases are really money drains because they are expensive and you are likely to spend real money again once you make the first purchase. So, I decide not to spend a penny.”

— a player, Steam review · 4 hrs played
Recommended · 0 found this helpful

“A fun, free mobile game also available here via Steam. Great lazy idle game for us multitaskers.”

— a player, Steam review · 2 hrs played
Not recommended · 3 found this helpful

“Game is effectively dead. PvP tournaments are no longer being activated. No updates (even to remove PvP info and countdowns). No support. Do not spend a single penny on buffs. The game is a grinder that's only moderately interesting, but given the incredibly slow progression…”

— a player, Steam review · 562 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

1,077all-time peak
0 500 1k 2023 2024 2025 2026 833 avg · Apr 2022

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-28.

24achievements
9.7%median completion
3.5%rarest: Warlord
40.4% of players 39.2% of players 35.8% of players 33.3% of players 28.6% of players 21.4% of players 20.2% of players 20.1% of players 16.9% of players 12.0% of players 10.9% of players 10.2% of players 9.7% of players 9.2% of players 9.1% of players 8.4% of players 8.3% of players 5.8% of players 5.7% of players 5.1% of players 5.1% of players 5.1% of players 4.3% of players 3.5% of players 40.4% 0% most earned rarest
Almost everyone has
40.4%Beginner — Pass wave 100.
39.2%Hunter — Unlock 10 unique monsters.
35.8%Mercenary — Defeat 10,000 enemies.
Rarest badges of honor
3.5%Warlord — Defeat 10,000,000 enemies.
4.3%Kingslayer — Defeat 100,000 bosses.
5.1%Addicted — Reach 25 days of in-game play time.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Apr 24, 2024
Patch v69 (April 24th)

- UI improvements - Multiple purchase available - New Tournament Bracket 21 & 22 with new prizes - Two new purchases included - Increase cap level of infinite upgrades levels - Added new hp bar when c

Apr 23, 2024
Patch v69 (April 24)

Hey community! We're back in action after a little break, and we're more pumped than ever to bring you an update with some of the small things you've been asking for. On April 24th, we'll be rolling o

Feb 25, 2023
Patch v68 (February 25)

Bug Fixes: Minor bug fixes, server upgrades, and analytics improvements.

Feb 02, 2023
Patch v67 (February 2)

Bug Fixes: Added logic to ensure your energy rewards from Resource Packs, Daily Bonus, and Video Ads never decrease as you reach higher waves. Fixed bug where Commando Bot's Tech I upgrade wasn't appl

Jan 19, 2023
Patch v66 (January 19)

QoL Improvements: Added setting to disable enemy movement speed bonuses (because quicker enemies can be more efficient for farming). Added setting to disable resource hauler spawns (because they may c

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresCasual, Indie, Strategy, Free To Play
Player tagsIdler · Tower Defense · Strategy · Auto Battler · Time Management · Incremental · Fantasy · PvE · Team-Based · Deckbuilding · 3D · Magic (Steam store community voting)
FeaturesSingle-player · Steam Achievements · In-App Purchases · Family Sharing
LanguagesEnglish
Achievements24
Official sitehttps://discord.gg/ebHUWeV
Minimum system requirements (PC)

Minimum: OS *: Windows 7 and above Processor: 1Ghz or faster processor Memory: 2 MB RAM Storage: 100 MB available space