Games like San Yin
Games like San Yin include Portal 2, Geometry Dash, ICEY, Rhythm Doctor, and Muse Dash. We matched them by the tags players give San Yin on Steam (Adventure, Funny, Music-Based Procedural Generation, Rhythm, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Singleplayer · Funny · Adventure

Geometry Dash
Shared: Rhythm · Level Editor · Singleplayer

ICEY
Shared: Adventure · Singleplayer · Side Scroller

Rhythm Doctor
Shared: Rhythm · Singleplayer · Level Editor

Muse Dash
Shared: Rhythm · Singleplayer · Female Protagonist

Tomb Raider Game of the Year
Shared: Adventure · Singleplayer · Female Protagonist

Dungeon Munchies
Shared: Adventure · Funny · Singleplayer

A Dance of Fire and Ice
Shared: Rhythm · Singleplayer · Level Editor

Thank Goodness You're Here!
Shared: Adventure · Funny · 2D Platformer

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

Marvel’s Spider-Man Remastered
Shared: Adventure · Singleplayer · Combat

SANABI
Shared: Adventure · 2D Platformer · Singleplayer

BattleBlock Theater®
Shared: Funny · Level Editor · 2D Platformer

Rabi-Ribi
Shared: Bullet Hell · Female Protagonist · Singleplayer

Slime Rancher
Shared: Adventure · Singleplayer · Funny

Planet of Lana
Shared: Adventure · 2D Platformer · Singleplayer

Gang Beasts
Shared: Funny · Singleplayer · Adventure

Pizza Tower
Shared: Funny · 2D Platformer · Singleplayer

Castle Crashers®
Shared: Funny · Adventure · Beat 'em up

I wanna be the Creator
Shared: Adventure · Level Editor · Funny

Beat Saber
Shared: Rhythm · Singleplayer · Music-Based Procedural Generation

Crimson Desert Enhanced
Shared: Adventure · Singleplayer · Combat

Human Fall Flat
Shared: Funny · Adventure · Action

Touhou Hero of Ice Fairy
Shared: Bullet Hell · Side Scroller · Female Protagonist