Games like MythGotchi
Games like MythGotchi include Stardew Valley, Disney Dreamlight Valley, My Time at Portia, Touhou Mystia's Izakaya, and Sun Haven. We matched them by the tags players give MythGotchi on Steam (Minigames, Life Sim, Auto Battler, Base Building, and Cooking): closest matches first, and among equally close ones the better-known games.

Stardew Valley
Shared: Life Sim · Simulation · Pixel Graphics

Disney Dreamlight Valley
Shared: Life Sim · Simulation · Relaxing

My Time at Portia
Shared: Life Sim · Simulation · Casual

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

Sun Haven
Shared: Life Sim · Pixel Graphics · Adventure

Little Witch in the Woods
Shared: Life Sim · Simulation · Casual

The Sims™ 4
Shared: Life Sim · Simulation · Casual

Unpacking
Shared: Casual · Relaxing · Life Sim

Littlewood
Shared: Life Sim · Simulation · Pixel Graphics

Hello Kitty Island Adventure
Shared: Life Sim · Simulation · Adventure

Cauldron
Shared: Minigames · Auto Battler · Casual

No Place Like Home
Shared: Life Sim · Base Building · Simulation

The Sims™ 3
Shared: Life Sim · Simulation · Casual

Fields of Mistria
Shared: Life Sim · Simulation · Pixel Graphics

Coral Island
Shared: Life Sim · Simulation · Relaxing

Book of Yog Idle RPG
Shared: Auto Battler · Simulation · Casual

Volcano Princess
Shared: Life Sim · Simulation · Female Protagonist

Chinese Parents
Shared: Life Sim · Simulation · Casual

Chef RPG
Shared: Life Sim · Cooking · Pixel Graphics

Potion Craft: Alchemist Simulator
Shared: Simulation · Relaxing · Life Sim

Infinity Nikki
Shared: Casual · Relaxing · Life Sim

Youtubers Life
Shared: Life Sim · Simulation · Casual

Clanfolk
Shared: Life Sim · Simulation · Pixel Graphics

Streamer Life Simulator
Shared: Life Sim · Simulation · Casual