Games like [it's possible] Classic
Games like [it's possible] Classic include FEZ, Hollow Knight, Getting Over It with Bennett Foddy, Hollow Knight: Silksong, and BEEP. We matched them by the tags players give [it's possible] Classic on Steam (Indie, Casual, Platformer, and Singleplayer): closest matches first, and among equally close ones the better-known games.

FEZ
Shared: Indie · Platformer · Singleplayer

Hollow Knight
Shared: Platformer · Indie · Singleplayer

Getting Over It with Bennett Foddy
Shared: Singleplayer · Indie · Platformer

Hollow Knight: Silksong
Shared: Indie · Singleplayer · Platformer

BEEP
Shared: Indie · Platformer · Singleplayer

Defy Gravity Extended
Shared: Indie · Platformer · Singleplayer

Minimalism
Shared: Indie · Casual · Platformer

LIMBO
Shared: Indie · Platformer · Singleplayer

Game Dev Tycoon
Shared: Indie · Casual · Singleplayer

A Story About My Uncle
Shared: Indie · Singleplayer · Platformer

GRIS
Shared: Indie · Platformer · Singleplayer

Little Inferno
Shared: Indie · Casual · Singleplayer

Nihilumbra
Shared: Indie · Platformer · Casual

Toki Tori
Shared: Indie · Casual · Platformer

DLC Quest
Shared: Indie · Platformer · Singleplayer

Plague Inc: Evolved
Shared: Indie · Singleplayer · Casual

Florence
Shared: Indie · Casual · Singleplayer

Rogue Legacy
Shared: Indie · Platformer · Singleplayer

Mountain
Shared: Indie · Casual · Singleplayer

Celeste
Shared: Indie · Platformer · Singleplayer

Super Meat Boy
Shared: Platformer · Indie · Singleplayer

Zup! S
Shared: Casual · Indie · Singleplayer

Golf With Your Friends
Shared: Casual · Indie · Singleplayer

Melvor Idle
Shared: Casual · Indie · Singleplayer