Games like TomoBuddy
Games like TomoBuddy include The Sims™ 4, Stardew Valley, Unpacking, DAVE THE DIVER, and Slime Rancher 2. We matched them by the tags players give TomoBuddy on Steam (Casual, Simulation, Animals, Creature Collector, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

The Sims™ 4
Shared: Simulation · Character Customization · Life Sim

Stardew Valley
Shared: Pixel Graphics · Simulation · Relaxing

Unpacking
Shared: Casual · Relaxing · Pixel Graphics

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Relaxing

Slime Rancher 2
Shared: Relaxing · Creature Collector · Singleplayer

Disney Dreamlight Valley
Shared: Simulation · Relaxing · Character Customization

Sticky Business
Shared: Casual · Simulation · Relaxing

The Sims™ 3
Shared: Simulation · Casual · Character Customization

Paralives
Shared: Simulation · Character Customization · Life Sim

Bongo Cat
Shared: Casual · Character Customization · 2D

Placid Plastic Duck Simulator
Shared: Casual · Relaxing · Simulation

inZOI
Shared: Simulation · Character Customization · Life Sim

Spirit City: Lofi Sessions
Shared: Creature Collector · Relaxing · Casual

Little Witch in the Woods
Shared: Casual · Pixel Graphics · Simulation

Youtubers Life
Shared: Casual · Simulation · Character Customization

Cast n Chill
Shared: Pixel Graphics · Relaxing · Casual

Potion Craft: Alchemist Simulator
Shared: Simulation · Relaxing · Singleplayer

Shelldiver
Shared: Casual · Simulation · Relaxing

MyVoiceZoo
Shared: Casual · Simulation · Creature Collector

Digseum
Shared: Casual · Simulation · Relaxing

Maltese's Fluffy Onsen
Shared: Simulation · Pixel Graphics · Casual

Screen Cat
Shared: Casual · Simulation · Relaxing

Tiny Pasture
Shared: Casual · Pixel Graphics · Creature Collector

Sun Haven
Shared: Pixel Graphics · Character Customization · Life Sim