Games like Unicorn Is Out Kissing
Games like Unicorn Is Out Kissing include The Henry Stickmin Collection, Life is Strange: True Colors, Undertale, The Stanley Parable, and Late Shift. We matched them by the tags players give Unicorn Is Out Kissing on Steam (Adventure, Multiple Endings, Interactive Fiction, Choose Your Own Adventure, and Walking Simulator): closest matches first, and among equally close ones the better-known games.

The Henry Stickmin Collection
Shared: Multiple Endings · Choose Your Own Adventure · Funny

Life is Strange: True Colors
Shared: Multiple Endings · Choices Matter · Choose Your Own Adventure

Undertale
Shared: Multiple Endings · Choices Matter · Funny

The Stanley Parable
Shared: Walking Simulator · Adventure · Comedy

Late Shift
Shared: Multiple Endings · Choose Your Own Adventure · Choices Matter

Endless Monday: Dreams and Deadlines
Shared: Interactive Fiction · Choose Your Own Adventure · Multiple Endings

Road 96
Shared: Adventure · Choices Matter · Multiple Endings

Detroit: Become Human
Shared: Multiple Endings · Choices Matter · Adventure

Love Is All Around
Shared: Multiple Endings · Interactive Fiction · Choices Matter

Finding Paradise
Shared: Adventure · Interactive Fiction · Emotional

Stray Gods: The Roleplaying Musical
Shared: Interactive Fiction · Choices Matter · Multiple Endings

Until Dawn™
Shared: Multiple Endings · Adventure · Choices Matter

The Wolf Among Us
Shared: Adventure · Multiple Endings · Choose Your Own Adventure

Tales from the Borderlands
Shared: Adventure · Choices Matter · Comedy

Refind Self: The Personality Test Game
Shared: Interactive Fiction · Adventure · Choose Your Own Adventure

To the Moon
Shared: Adventure · Interactive Fiction · Emotional

I Wani Hug that Gator!
Shared: Choose Your Own Adventure · Interactive Fiction · Multiple Endings

Dispatch
Shared: Choices Matter · Choose Your Own Adventure · Comedy

Ten Trials of Babel: The Doppelganger Maze
Shared: Multiple Endings · Adventure · Choose Your Own Adventure

Reventure
Shared: Adventure · Multiple Endings · Comedy

私のリアルは充実しすぎている フルボイス版
Shared: Multiple Endings · Funny · Female Protagonist

The Invincible
Shared: Adventure · Walking Simulator · Choices Matter

Life is Strange: Before the Storm
Shared: Choices Matter · Adventure · Multiple Endings

Life is Strange Remastered
Shared: Multiple Endings · Choices Matter · Adventure