Games like Idle Expanse
Games like Idle Expanse include Idle Champions of the Forgotten Realms, Cookie Clicker, Dragon Cliff, Nodebuster, and A Game About Feeding A Black Hole. We matched them by the tags players give Idle Expanse on Steam (Casual, RPG, Strategy, Free to Play, and Indie): closest matches first, and among equally close ones the better-known games.

Idle Champions of the Forgotten Realms
Shared: Strategy · Free to Play · Idler

Cookie Clicker
Shared: Casual · Idler · Incremental

Dragon Cliff
Shared: RPG · Strategy · Casual

Nodebuster
Shared: Casual · Strategy · Incremental

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

Shelldiver
Shared: Casual · Incremental · Idler

Keep on Mining!
Shared: Casual · Idler · Incremental

Game Dev Tycoon
Shared: Casual · Strategy · Indie

Melvor Idle
Shared: RPG · Casual · Idler

Town of Salem
Shared: Strategy · RPG · Casual

Bills Must Be Paid
Shared: Strategy · Incremental · Casual

Swords and Souls: Neverseen
Shared: RPG · Indie · Casual

Loot Loop
Shared: Casual · Incremental · Idler

Incredicer
Shared: Casual · Strategy · Idler

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

Timber Rush
Shared: Casual · Strategy · Indie

Kiwi Clicker - Juiced Up
Shared: Casual · Indie · Incremental

Chef Knight
Shared: Strategy · Casual · Incremental

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

Tower Wizard
Shared: Strategy · Idler · Incremental

xiuzhen idle
Shared: Casual · RPG · Indie

Swag and Sorcery
Shared: RPG · Indie · Incremental

Path of Idle: Old Gods Rising
Shared: RPG · Strategy · Casual

Mini Motorways
Shared: Casual · Strategy · Indie