Games like Slot Idler
Games like Slot Idler include Cookie Clicker, Click the Button, A Game About Feeding A Black Hole, Keep on Mining!, and Melvor Idle. We matched them by the tags players give Slot Idler on Steam (Casual, Gambling, Idler, Singleplayer, and 2D): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Idler · Casual · Incremental

Click the Button
Shared: Casual · Idler · Indie

A Game About Feeding A Black Hole
Shared: Casual · Idler · Incremental

Keep on Mining!
Shared: Casual · Idler · Incremental

Melvor Idle
Shared: Casual · Idler · Singleplayer

Nodebuster
Shared: Casual · Idler · Incremental

Fortune Mill
Shared: Idler · Casual · Incremental

Plague Inc: Evolved
Shared: Singleplayer · Casual · Indie

Game Dev Tycoon
Shared: Casual · Singleplayer · Indie

911 Operator
Shared: Singleplayer · Casual · Simulation

Bills Must Be Paid
Shared: Gambling · Incremental · Idler

Shelldiver
Shared: Casual · Idler · Incremental

Russian Life Simulator
Shared: Singleplayer · 2D · Simulation

Mountain
Shared: Casual · Singleplayer · Indie

To The Core
Shared: Casual · 2D · Incremental

Scritchy Scratchy
Shared: Gambling · Idler · Incremental

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

Unfair Flips
Shared: Casual · 2D · Incremental

Potion Craft: Alchemist Simulator
Shared: Singleplayer · 2D · Simulation

Loot Loop
Shared: Casual · Idler · Incremental

Digseum
Shared: Casual · Idler · Incremental

Dragon Cliff
Shared: Idler · Casual · Incremental

Chef Knight
Shared: Casual · Incremental · Idler

Space Rock Breaker
Shared: Casual · Idler · Incremental