Games like Grotto
Games like Grotto include Road 96, The Stanley Parable, Detroit: Become Human, Undertale, and Late Shift. We matched them by the tags players give Grotto on Steam (Choices Matter, Interactive Fiction, Multiple Endings, Immersive Sim, and Walking Simulator): closest matches first, and among equally close ones the better-known games.
Road 96
Shared: Choices Matter · Multiple Endings · Colorful
The Stanley Parable
Shared: Walking Simulator · Psychological · Multiple Endings
Detroit: Become Human
Shared: Choices Matter · Multiple Endings · Singleplayer
Undertale
Shared: Choices Matter · Multiple Endings · Singleplayer
Late Shift
Shared: Choices Matter · Multiple Endings · Interactive Fiction
Love Is All Around
Shared: Choices Matter · Multiple Endings · Interactive Fiction
The Test
Shared: Multiple Endings · Choose Your Own Adventure · Choices Matter
Breakout 13
Shared: Interactive Fiction · Choices Matter · Immersive Sim
The Henry Stickmin Collection
Shared: Multiple Endings · Choices Matter · Choose Your Own Adventure
Until Dawn™
Shared: Choices Matter · Multiple Endings · Interactive Fiction
Firewatch
Shared: Walking Simulator · Atmospheric · Adventure
No, I'm not a Human
Shared: Choices Matter · Multiple Endings · Singleplayer
The Casting of Frank Stone™
Shared: Choices Matter · Multiple Endings · Singleplayer
The Life and Suffering of Sir Brante
Shared: Choices Matter · Interactive Fiction · Choose Your Own Adventure
Before Your Eyes
Shared: Interactive Fiction · Walking Simulator · Singleplayer
Life is Strange: Before the Storm
Shared: Choices Matter · Multiple Endings · Singleplayer
OneShot
Shared: Choices Matter · Multiple Endings · Atmospheric
Suzerain
Shared: Choices Matter · Interactive Fiction · Choose Your Own Adventure
Road 96: Mile 0
Shared: Interactive Fiction · Choices Matter · Choose Your Own Adventure
Legend of Mortal
Shared: Choices Matter · Multiple Endings · Replay Value
THE LONGING
Shared: Walking Simulator · Multiple Endings · Choose Your Own Adventure
The Wolf Among Us
Shared: Choices Matter · Multiple Endings · Choose Your Own Adventure
80 Days
Shared: Choices Matter · Interactive Fiction · Choose Your Own Adventure
Road to Empress I
Shared: Choices Matter · Immersive Sim · Multiple Endings