Games like Auction House
Games like Auction House include Cookie Clicker, Shop Titans, Nodebuster, (the) Gnorp Apologue, and Shelldiver. We matched them by the tags players give Auction House on Steam (Incremental, Idler, Shop Keeper, Colony Sim, and Strategy): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Incremental · Idler · Casual

Shop Titans
Shared: Idler · Shop Keeper · Crafting

Nodebuster
Shared: Incremental · Idler · Strategy

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

Shelldiver
Shared: Incremental · Idler · Casual

Dragon Cliff
Shared: Idler · Incremental · Strategy

Fortune Mill
Shared: Incremental · Idler · Automation

Rusty's Retirement
Shared: Idler · Automation · Simulation

Incredicer
Shared: Incremental · Idler · Strategy

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

Factory Town Idle
Shared: Incremental · Idler · Automation

Idle Colony
Shared: Incremental · Idler · Strategy

Game Dev Tycoon
Shared: Strategy · Simulation · Management

Sixty Four
Shared: Incremental · Strategy · Automation

Budgie's Bug Shop
Shared: Incremental · Idler · Casual

Chef Knight
Shared: Incremental · Strategy · Idler

Digseum
Shared: Incremental · Idler · Casual

Bills Must Be Paid
Shared: Incremental · Strategy · Idler

Gamblers Table
Shared: Incremental · Automation · Idler

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

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

Factorio
Shared: Automation · Strategy · Crafting

Keep on Mining!
Shared: Incremental · Idler · Casual

Banished
Shared: Colony Sim · Strategy · Simulation