Games like Bajillionaire
Games like Bajillionaire include Nodebuster, Shelldiver, Click and Conquer, A Game About Feeding A Black Hole, and Cookie Clicker. We matched them by the tags players give Bajillionaire on Steam (Casual, Simulation, Arcade, Sandbox, and Tower Defense): closest matches first, and among equally close ones the better-known games.

Nodebuster
Shared: Casual · Simulation · Incremental

Shelldiver
Shared: Casual · Incremental · Arcade

Click and Conquer
Shared: Casual · Simulation · Incremental

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

Cookie Clicker
Shared: Casual · Incremental · Pixel Graphics

People Playground
Shared: Sandbox · Simulation · 2D

Outhold
Shared: Tower Defense · Incremental · Casual

Digseum
Shared: Casual · Simulation · Incremental

Game Dev Tycoon
Shared: Simulation · Casual · 2D

Unfair Flips
Shared: Casual · Simulation · Incremental

Timberman
Shared: Casual · Arcade · 2D

Bloons TD 6
Shared: Tower Defense · Casual · Sandbox

Stardew Valley
Shared: Simulation · Pixel Graphics · Sandbox

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Colorful

Loot Loop
Shared: Casual · Simulation · Incremental

Click the Button
Shared: Casual · Simulation · Incremental

Touhou Mystia's Izakaya
Shared: Casual · Simulation · Pixel Graphics

Your Only Move Is HUSTLE
Shared: Simulation · Sandbox · 2D

Russian Life Simulator
Shared: Simulation · Incremental · 2D

Mini Motorways
Shared: Simulation · Casual · Minimalist

To The Core
Shared: Casual · Arcade · Incremental

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Arcade · Casual · 2D

Fishing Inc
Shared: Casual · Incremental · Colorful

Growtopia
Shared: Casual · Simulation · Sandbox