Games like Settlers of Idlestan
Games like Settlers of Idlestan include Shelldiver, Keep on Mining!, Cookie Clicker, Nodebuster, and A Game About Feeding A Black Hole. We matched them by the tags players give Settlers of Idlestan on Steam (Idler, 4X, Casual, Strategy, and Incremental): closest matches first, and among equally close ones the better-known games.

Shelldiver
Shared: Casual · Incremental · Idler

Keep on Mining!
Shared: Idler · Casual · Incremental

Cookie Clicker
Shared: Idler · Incremental · Casual

Nodebuster
Shared: Casual · Idler · Incremental

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

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

Incredicer
Shared: Idler · Casual · Incremental

Chef Knight
Shared: Strategy · Incremental · Casual

Tower Wizard
Shared: Idler · Incremental · Strategy

Timber Rush
Shared: Idler · Casual · Strategy

Bills Must Be Paid
Shared: Incremental · Strategy · Idler

Fortune Mill
Shared: Idler · Incremental · Casual

Fracture Field
Shared: Idler · Incremental · Casual

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

Starvester
Shared: Idler · Incremental · Strategy

Digseum
Shared: Idler · Casual · Incremental

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

Click and Conquer
Shared: Casual · Idler · Incremental

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

Factorio
Shared: Automation · Strategy · Resource Management

Lyca
Shared: Idler · Casual · Incremental

Melvor Idle
Shared: Idler · Casual · Automation

Loot Loop
Shared: Casual · Idler · Incremental

Dragon Cliff
Shared: Idler · Strategy · Incremental