Games like Paramnesia
Games like Paramnesia include Who's Lila?, Road 96: Mile 0, What Remains of Edith Finch, OPUS: Echo of Starsong - Full Bloom Edition, and Refind Self: The Personality Test Game. We matched them by the tags players give Paramnesia on Steam (Choose Your Own Adventure, Exploration, Interactive Fiction, Visual Novel, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

Who's Lila?
Shared: Choose Your Own Adventure · Interactive Fiction · Exploration

Road 96: Mile 0
Shared: Choose Your Own Adventure · Exploration · Interactive Fiction

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · Female Protagonist

OPUS: Echo of Starsong - Full Bloom Edition
Shared: Visual Novel · Interactive Fiction · Female Protagonist

Refind Self: The Personality Test Game
Shared: Interactive Fiction · Visual Novel · Female Protagonist

The NOexistenceN of you AND me
Shared: Visual Novel · Interactive Fiction · Multiple Endings

Her Story
Shared: Interactive Fiction · Choose Your Own Adventure · Exploration

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Choose Your Own Adventure · Interactive Fiction

Mirror 2: Project X
Shared: Visual Novel · Interactive Fiction · Female Protagonist

Ib
Shared: Exploration · 2D · Choose Your Own Adventure

Dagon: by H. P. Lovecraft
Shared: Visual Novel · Choose Your Own Adventure · Horror

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Exploration · Interactive Fiction

Homicipher
Shared: Visual Novel · Female Protagonist · Choose Your Own Adventure

Sumire
Shared: Choose Your Own Adventure · Exploration · Interactive Fiction

Breakout 13
Shared: Choose Your Own Adventure · Interactive Fiction · Exploration

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

No Case Should Remain Unsolved
Shared: Interactive Fiction · Visual Novel · Female Protagonist

Far Away
Shared: Visual Novel · Choose Your Own Adventure · Female Protagonist

Firewatch
Shared: Walking Simulator · Exploration · First-Person

The Test
Shared: Choose Your Own Adventure · Multiple Endings · Visual Novel

Urban Myth Dissolution Center
Shared: Visual Novel · Exploration · 2D

The Weeping Swan: Ten Days of the City's Fall
Shared: Interactive Fiction · Visual Novel · Multiple Endings

Gone Home
Shared: Exploration · Walking Simulator · Female Protagonist

Danganronpa V3: Killing Harmony
Shared: Visual Novel · Female Protagonist · Detective