Games like Idle Monster TD: Evolved
Games like Idle Monster TD: Evolved include Idle Champions of the Forgotten Realms, Zero Stress King: Idle Defense, Firestone – Idle Clicker Online RPG, Legion TD 2 - Multiplayer Tower Defense, and Dota Underlords. We matched them by the tags players give Idle Monster TD: Evolved on Steam (Idler, Tower Defense, Strategy, Auto Battler, and Time Management): closest matches first, and among equally close ones the better-known games.

Idle Champions of the Forgotten Realms
Shared: Idler · Strategy · Incremental

Zero Stress King: Idle Defense
Shared: Idler · Tower Defense · Strategy

Firestone – Idle Clicker Online RPG
Shared: Idler · Auto Battler · Incremental

Legion TD 2 - Multiplayer Tower Defense
Shared: Tower Defense · Strategy · Auto Battler

Dota Underlords
Shared: Strategy · Auto Battler · Fantasy

Cookie Clicker
Shared: Idler · Incremental · Casual

Tower Wizard
Shared: Idler · Strategy · Incremental

All Aboard! The Train Defense Express
Shared: Idler · Tower Defense · Time Management

Bloons TD 6
Shared: Tower Defense · Strategy · 3D

IdleOn - The Incremental MMO
Shared: Idler · Incremental · Strategy

Master Healer Kale with useless party
Shared: Incremental · Idler · Auto Battler

The Bazaar
Shared: Strategy · Auto Battler · Deckbuilding

Nodebuster
Shared: Idler · Strategy · Incremental

Bills Must Be Paid
Shared: Strategy · Incremental · Idler

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · Fantasy

Dota 2
Shared: Strategy · Team-Based · Tower Defense

Orcs Must Die! 3
Shared: Tower Defense · Strategy · PvE

Dragon Cliff
Shared: Idler · Strategy · Incremental

(the) Gnorp Apologue
Shared: Idler · Strategy · Incremental

Desktop Defender
Shared: Idler · Tower Defense · Auto Battler

Crown Siege
Shared: Tower Defense · Auto Battler · Idler

Age of Darkness: Final Stand
Shared: Tower Defense · Strategy · PvE

Emberward
Shared: Tower Defense · Strategy · Deckbuilding

Sir, We Have an Orc Problem
Shared: Tower Defense · Incremental · Strategy