Games like Momo Don't Leave
Games like Momo Don't Leave include Slay the Princess — The Pristine Cut, Tiny Bunny, Who's Lila?, NEEDY STREAMER OVERLOAD, and The NOexistenceN of you AND me. We matched them by the tags players give Momo Don't Leave on Steam (Visual Novel, Psychological Horror, Point & Click, Choose Your Own Adventure, and Interactive Fiction): closest matches first, and among equally close ones the better-known games.

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Psychological Horror · Choices Matter

Tiny Bunny
Shared: Visual Novel · Psychological Horror · Choices Matter

Who's Lila?
Shared: Psychological Horror · Point & Click · Choose Your Own Adventure

NEEDY STREAMER OVERLOAD
Shared: Psychological Horror · Visual Novel · 2D

The NOexistenceN of you AND me
Shared: Visual Novel · Psychological Horror · Interactive Fiction

Suzerain
Shared: Visual Novel · Choose Your Own Adventure · Interactive Fiction

The Test
Shared: Choose Your Own Adventure · Psychological Horror · Visual Novel

Little Misfortune
Shared: Psychological Horror · Point & Click · Choices Matter

Scarlet Hollow
Shared: Visual Novel · Psychological Horror · Choices Matter

The Wolf Among Us
Shared: Visual Novel · Choose Your Own Adventure · Adventure

Death and Taxes
Shared: Psychological Horror · Choices Matter · Point & Click

Dagon: by H. P. Lovecraft
Shared: Visual Novel · Psychological Horror · Horror

Milk inside a bag of milk inside a bag of milk
Shared: Visual Novel · Psychological Horror · Interactive Fiction

Return to Shironagasu Island
Shared: Visual Novel · Psychological Horror · Adventure

The Test: Hypothesis Rising
Shared: Visual Novel · Choose Your Own Adventure · Choices Matter

Minds Beneath Us
Shared: Visual Novel · Choose Your Own Adventure · Choices Matter

Sally Face - Episode One
Shared: Psychological Horror · Point & Click · Horror

Urban Myth Dissolution Center
Shared: Visual Novel · Psychological Horror · Adventure

Zero Escape: The Nonary Games
Shared: Visual Novel · Psychological Horror · Choices Matter

and Roger
Shared: Visual Novel · Interactive Fiction · Point & Click

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Interactive Fiction · Multiple Endings

Fran Bow
Shared: Psychological Horror · Point & Click · Adventure

Milk outside a bag of milk outside a bag of milk
Shared: Visual Novel · Psychological Horror · 2D

Looking Up I See Only A Ceiling
Shared: Point & Click · Adventure · Psychological Horror