Games like Machine Child
Games like Machine Child include Volcano Princess, Magical Princess, Chinese Parents, Undertale, and Princess Maker: Children of Revelation. We matched them by the tags players give Machine Child on Steam (Cute, Life Sim, 2D, Multiple Endings, and Fantasy): closest matches first, and among equally close ones the better-known games.

Volcano Princess
Shared: Life Sim · Multiple Endings · Choices Matter

Magical Princess
Shared: Life Sim · Multiple Endings · Choices Matter

Chinese Parents
Shared: Life Sim · Simulation · Cute

Undertale
Shared: Multiple Endings · Choices Matter · 2D

Princess Maker: Children of Revelation
Shared: Life Sim · Cute · Simulation

小白兔电商~Bunny e-Shop
Shared: Cute · Life Sim · Simulation

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

Growing Up
Shared: Life Sim · Choices Matter · Simulation

Slime Rancher
Shared: Cute · Simulation · Singleplayer

LoveChoice
Shared: Cute · Multiple Endings · Choices Matter

Legend of Mortal
Shared: Multiple Endings · Choices Matter · RPG

Banana
Shared: 2D · Simulation · Singleplayer

Emily is Away <3
Shared: Simulation · Choices Matter · Multiple Endings

Princess Maker 2 Refine
Shared: Multiple Endings · Simulation · Life Sim

Kingdom Rush Frontiers - Tower Defense
Shared: 2D · Strategy · Fantasy

Fields of Mistria
Shared: Life Sim · Cute · Simulation

Reigns
Shared: Life Sim · Choices Matter · Simulation

Senren * Banka
Shared: Cute · Multiple Endings · Anime

Dragon Age: Origins - Ultimate Edition
Shared: Fantasy · Choices Matter · Multiple Endings

Stardew Valley
Shared: Life Sim · Simulation · RPG

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Funny

Long Live The Queen
Shared: Simulation · Anime · Cute

STORY OF SEASONS: Friends of Mineral Town
Shared: Cute · Simulation · Life Sim

The Witcher 3: Wild Hunt — Remastered
Shared: Fantasy · Choices Matter · RPG