Games like IDLE: Intergalactic Defense League Exterminators
Games like IDLE: Intergalactic Defense League Exterminators include Shelldiver, Cookie Clicker, Digseum, Nodebuster, and Scritchy Scratchy. We matched them by the tags players give IDLE: Intergalactic Defense League Exterminators on Steam (Simulation, Casual, Incremental, Relaxing, and Idler): closest matches first, and among equally close ones the better-known games.

Shelldiver
Shared: Casual · Incremental · Simulation

Cookie Clicker
Shared: Incremental · Casual · Idler

Digseum
Shared: Casual · Incremental · Simulation

Nodebuster
Shared: Casual · Incremental · Simulation

Scritchy Scratchy
Shared: Incremental · Idler · Simulation

Keep on Mining!
Shared: Incremental · Casual · Idler

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

Click and Conquer
Shared: Casual · Simulation · Incremental

Potion Craft: Alchemist Simulator
Shared: Simulation · Relaxing · Singleplayer

Fortune Mill
Shared: Incremental · Idler · Simulation

DAVE THE DIVER
Shared: Casual · Relaxing · Management

Loot Loop
Shared: Casual · Simulation · Incremental

Hearth and Hamlet
Shared: Incremental · Casual · Simulation

Mini Motorways
Shared: Simulation · Casual · Management

Chef Knight
Shared: Simulation · Incremental · Casual

Gas Station Simulator
Shared: Simulation · Casual · Singleplayer

Click the Button
Shared: Casual · Incremental · Simulation

Bills Must Be Paid
Shared: Incremental · Relaxing · Casual

Incredicer
Shared: Incremental · Casual · Idler

Game Dev Tycoon
Shared: Simulation · Casual · Management

Retro Rewind - Video Store Simulator
Shared: Simulation · Casual · Relaxing

Lyca
Shared: Casual · Incremental · Simulation

Oxygen Not Included
Shared: Base Building · Singleplayer · Simulation

Keep on Mining! - Worlds
Shared: Casual · Incremental · Relaxing