Games like Insanity Clicker
Games like Insanity Clicker include Idle Champions of the Forgotten Realms, Where Winds Meet, IdleOn - The Incremental MMO, Notes of Soul, and Dark Deception. We matched them by the tags players give Insanity Clicker on Steam (Free to Play, Incremental, Horror, Casual, and RPG): closest matches first, and among equally close ones the better-known games.

Idle Champions of the Forgotten Realms
Shared: Free to Play · Incremental · Adventure

Where Winds Meet
Shared: Free to Play · Adventure · Multiplayer

IdleOn - The Incremental MMO
Shared: Free to Play · Incremental · RPG

Notes of Soul
Shared: Horror · Adventure · RPG

Dark Deception
Shared: Free to Play · Horror · Indie

Marvel Rivals
Shared: Free to Play · Multiplayer · Casual

Cookie Clicker
Shared: Incremental · Horror · Casual

Dota 2
Shared: Free to Play · Strategy · Multiplayer

SMITE®
Shared: Free to Play · Multiplayer · Strategy

Once Human
Shared: Free to Play · Multiplayer · Adventure

Ultimate Custom Night
Shared: Free to Play · Horror · Strategy

Poppy Playtime
Shared: Free to Play · Horror · Indie

Mount & Blade II: Bannerlord
Shared: RPG · Strategy · Multiplayer

Dragon Cliff
Shared: RPG · Incremental · Casual

GWENT: The Witcher Card Game
Shared: Free to Play · RPG · Strategy

Outlast
Shared: Horror · Adventure · Gore

Bongo Cat
Shared: Free to Play · Casual · Incremental

We Were Here
Shared: Free to Play · Horror · Adventure

Book of Yog Idle RPG
Shared: Simulation · Casual · Nudity

Buckshot Roulette
Shared: Horror · Indie · Multiplayer

Plague Inc: Evolved
Shared: Simulation · Indie · Casual

The First Descendant
Shared: Free to Play · RPG · Multiplayer