Games like Only Jump!
Games like Only Jump! include Rogue Legacy 2, Sonic Adventure DX, Pumpkin Jack, Dust: An Elysian Tail, and Sonic Adventure 2. We matched them by the tags players give Only Jump! on Steam (Action, Adventure, Arcade, Platformer, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

Rogue Legacy 2
Shared: Arcade · Action · Platformer

Sonic Adventure DX
Shared: Platformer · Adventure · 3D Platformer

Pumpkin Jack
Shared: Action · Adventure · 3D Platformer

Dust: An Elysian Tail
Shared: Action · Platformer · Adventure

Sonic Adventure 2
Shared: Action · Platformer · 3D Platformer

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

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

Portal 2
Shared: Platformer · Singleplayer · 3D Platformer

Sonic Frontiers
Shared: Adventure · Action · 3D Platformer

Ori and the Will of the Wisps
Shared: Platformer · Action · Adventure

Psychonauts
Shared: Adventure · Platformer · Action

Hollow Knight
Shared: Platformer · Adventure · Indie

Spyro™ Reignited Trilogy
Shared: Adventure · 3D Platformer · Action

Hob
Shared: Action · Adventure · Platformer

Rogue Legacy
Shared: Platformer · Action · Indie

Sonic Lost World
Shared: Adventure · Platformer · 3D Platformer

Mark of the Ninja
Shared: Platformer · Action · Adventure

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: Adventure · Action · 3D Platformer

Ratchet & Clank: Rift Apart
Shared: Adventure · 3D Platformer · Action

TY the Tasmanian Tiger
Shared: Action · 3D Platformer · Platformer

Prince of Persia: The Forgotten Sands™
Shared: Action · Adventure · Platformer

The Last Tinker™: City of Colors
Shared: Adventure · Action · Indie

Need for Speed™ Heat
Shared: Action · Adventure · Arcade

Crash Bandicoot™ 4: It’s About Time
Shared: Action · Platformer · Adventure