Games like MMO98
Games like MMO98 include Cookie Clicker, Nodebuster, Shelldiver, Digseum, and (the) Gnorp Apologue. We matched them by the tags players give MMO98 on Steam (Strategy, Simulation, Incremental, Idler, and Capitalism): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Incremental · Idler · Casual

Nodebuster
Shared: Strategy · Incremental · Simulation

Shelldiver
Shared: Incremental · Casual · Idler

Digseum
Shared: Incremental · Idler · Simulation

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

Chef Knight
Shared: Strategy · Incremental · Simulation

Game Dev Tycoon
Shared: Simulation · Strategy · Casual

Scritchy Scratchy
Shared: Incremental · Idler · Simulation

Lyca
Shared: Incremental · Idler · Simulation

Bills Must Be Paid
Shared: Incremental · Strategy · Capitalism

Victoria 3
Shared: Strategy · Simulation · Capitalism

Keep on Mining!
Shared: Incremental · Idler · Casual

Cities: Skylines
Shared: Simulation · Strategy · Management

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

Click the Button
Shared: Incremental · Simulation · Casual

Tower Wizard
Shared: Incremental · Strategy · Idler

Click and Conquer
Shared: Incremental · Simulation · Idler

Loot Loop
Shared: Incremental · Simulation · Idler

Russian Life Simulator
Shared: Simulation · Incremental · Strategy

Dragon Cliff
Shared: Strategy · Idler · Incremental

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

Incredicer
Shared: Incremental · Idler · Strategy

Fortune Mill
Shared: Incremental · Idler · Simulation

Gamblers Table
Shared: Incremental · Capitalism · Idler