Games like Monorail Stories
Games like Monorail Stories include Volcano Princess, Magical Princess, Undertale, Detroit: Become Human, and Disney Dreamlight Valley. We matched them by the tags players give Monorail Stories on Steam (Life Sim, Female Protagonist, Simulation, Choices Matter, and Funny): closest matches first, and among equally close ones the better-known games.

Volcano Princess
Shared: Life Sim · Female Protagonist · Choices Matter

Magical Princess
Shared: Life Sim · Choices Matter · Female Protagonist

Undertale
Shared: Choices Matter · Story Rich · Funny

Detroit: Become Human
Shared: Choices Matter · Multiple Endings · Story Rich

Disney Dreamlight Valley
Shared: Life Sim · Simulation · Exploration

Tomb Raider Game of the Year
Shared: Female Protagonist · Story Rich · Exploration

Growing Up
Shared: Life Sim · Choices Matter · Simulation

Life is Strange: Before the Storm
Shared: Female Protagonist · Choices Matter · Story Rich

Sable
Shared: Female Protagonist · Exploration · Story Rich

Slime Rancher
Shared: Exploration · Funny · Simulation

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

Rise of the Tomb Raider™
Shared: Female Protagonist · Exploration · Adventure

The Witcher 3: Wild Hunt — Remastered
Shared: Story Rich · Choices Matter · Atmospheric

Life is Strange: True Colors
Shared: Choices Matter · Female Protagonist · Story Rich

OneShot
Shared: Story Rich · Choices Matter · Atmospheric

Emily is Away Too
Shared: Simulation · Choices Matter · Multiple Endings

Crime Scene Cleaner
Shared: Simulation · Funny · Exploration

Oxenfree
Shared: Choices Matter · Female Protagonist · Story Rich

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

Coffee Talk
Shared: Dialogue Heavy · Story Rich · Choices Matter

The Test
Shared: Simulation · Multiple Endings · Story Rich

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

Death and Taxes
Shared: Choices Matter · Simulation · Story Rich

DAVE THE DIVER
Shared: Exploration · Casual · Simulation