Games like Frank and 10 roots
Games like Frank and 10 roots include Portal 2, Hollow Knight, Hollow Knight: Silksong, LIMBO, and Celeste. We matched them by the tags players give Frank and 10 roots on Steam (Indie, 3D Platformer, Platformer, Puzzle, and Difficult): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · Puzzle · Singleplayer

Hollow Knight
Shared: Platformer · Indie · Difficult

Hollow Knight: Silksong
Shared: Indie · Difficult · Platformer

LIMBO
Shared: Indie · Platformer · Puzzle

Celeste
Shared: Indie · Difficult · Platformer

Baba Is You
Shared: Indie · Puzzle · Difficult

Portal
Shared: Puzzle · 3D Platformer · Singleplayer

Defy Gravity Extended
Shared: Indie · Platformer · Puzzle

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

Geometry Dash
Shared: Difficult · Platformer · Singleplayer

Super Meat Boy
Shared: Platformer · Indie · Difficult

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

FEZ
Shared: Indie · Platformer · Puzzle

Braid
Shared: Indie · Puzzle · Platformer

Crash Bandicoot™ N. Sane Trilogy
Shared: 3D Platformer · Platformer · Difficult

Cuphead
Shared: Difficult · Platformer · Indie

Tiny and Big: Grandpas Leftovers
Shared: Indie · Platformer · Puzzle

Shady Part of Me
Shared: Indie · Puzzle · Platformer

BEEP
Shared: Indie · Platformer · Singleplayer

EDGE
Shared: Indie · Puzzle · Platformer

Squishy the Suicidal Pig
Shared: Indie · Platformer · Puzzle

Out There Somewhere
Shared: Indie · Platformer · Puzzle

DeadCore
Shared: Indie · Platformer · Difficult

Toki Tori
Shared: Indie · Puzzle · Platformer