Games like OiiAi Cat
Games like OiiAi Cat include Cookie Clicker, Goat Simulator, Russian Life Simulator, The Sims™ 4, and My Name is Mayo. We matched them by the tags players give OiiAi Cat on Steam (Casual, Simulation, Incremental, 2D, and Realistic): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Incremental · Casual · Indie

Goat Simulator
Shared: Simulation · Comedy · Funny

Russian Life Simulator
Shared: Simulation · Incremental · 2D

The Sims™ 4
Shared: Simulation · Free to Play · Casual

My Name is Mayo
Shared: Casual · Incremental · Comedy

Game Dev Tycoon
Shared: Simulation · Casual · 2D

Unfair Flips
Shared: Casual · Simulation · Incremental

Peace, Death!
Shared: Casual · Simulation · Funny

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

Totally Accurate Battle Simulator
Shared: Simulation · Funny · Realistic

Garry's Mod
Shared: Casual · Funny · Simulation

Nodebuster
Shared: Casual · Incremental · Simulation

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

Cooking Simulator
Shared: Simulation · Realistic · Funny

Mr.President!
Shared: Simulation · Realistic · Funny

Touhou Mystia's Izakaya
Shared: Casual · Simulation · Comedy

Shelldiver
Shared: Casual · Incremental · Simulation

Youtubers Life
Shared: Casual · Simulation · Comedy

Oh...Sir!! The Insult Simulator
Shared: Simulation · Comedy · Funny

Mountain
Shared: Simulation · Casual · Indie

Gas Station Simulator
Shared: Simulation · Casual · Realistic

Plague Inc: Evolved
Shared: Simulation · Casual · Indie

Potion Craft: Alchemist Simulator
Shared: Simulation · 2D · Casual

Passpartout: The Starving Artist
Shared: Casual · Simulation · Indie