Games like Grow Flow
Games like Grow Flow include Portal 2, Neon White, Refunct, Portal, and White Knuckle. We matched them by the tags players give Grow Flow on Steam (Precision Platformer, 3D Platformer, Puzzle Platformer, Parkour, and Platformer): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · Puzzle Platformer · First-Person

Neon White
Shared: 3D Platformer · Parkour · Platformer

Refunct
Shared: 3D Platformer · Parkour · Puzzle Platformer

Portal
Shared: Puzzle Platformer · 3D Platformer · First-Person

White Knuckle
Shared: Parkour · 3D Platformer · Precision Platformer

Celeste
Shared: Precision Platformer · Platformer · Indie

A Story About My Uncle
Shared: Parkour · First-Person · 3D Platformer

SEUM: Speedrunners from Hell
Shared: 3D Platformer · Precision Platformer · Parkour

Bomb Rush Cyberfunk
Shared: 3D Platformer · Parkour · Action

Pseudoregalia
Shared: 3D Platformer · Parkour · Platformer

Mirror's Edge™ Catalyst
Shared: Parkour · 3D Platformer · First-Person

Toree 3D
Shared: 3D Platformer · Platformer · Precision Platformer

Hot Lava
Shared: Precision Platformer · 3D Platformer · Parkour

Last Train Outta' Wormtown
Shared: 3D Platformer · Platformer · 3D

Mirror's Edge™
Shared: Parkour · 3D Platformer · First-Person

Lunistice
Shared: 3D Platformer · Platformer · Cute

Clustertruck
Shared: Parkour · 3D Platformer · First-Person

A Hat in Time
Shared: 3D Platformer · Cute · Platformer

Toree 2
Shared: 3D Platformer · Precision Platformer · Platformer

Sonic Frontiers
Shared: 3D Platformer · Action · 3D

Cyber Hook
Shared: 3D Platformer · Parkour · Platformer

Prince of Persia®: The Sands of Time
Shared: Parkour · Platformer · Action

SONIC X SHADOW GENERATIONS
Shared: 3D Platformer · Platformer · Action

Tomb Raider IV-VI Remastered
Shared: 3D Platformer · Platformer · Precision Platformer