Games like Bounce Forever
Games like Bounce Forever include Only Climb: Better Together, A Difficult Game About Climbing, Getting Over It with Bennett Foddy, Get To Work, and Celeste. We matched them by the tags players give Bounce Forever on Steam (Precision Platformer, 3D Platformer, Action, Difficult, and Platformer): closest matches first, and among equally close ones the better-known games.

Only Climb: Better Together
Shared: Precision Platformer · 3D Platformer · Difficult

A Difficult Game About Climbing
Shared: Difficult · Precision Platformer · Platformer

Getting Over It with Bennett Foddy
Shared: Difficult · Platformer · Horror

Get To Work
Shared: Difficult · Precision Platformer · 3D Platformer

Celeste
Shared: Precision Platformer · Difficult · Platformer

Crash Bandicoot™ 4: It’s About Time
Shared: 3D Platformer · Action · Difficult

Super Meat Boy
Shared: Precision Platformer · Difficult · Platformer

Jump King
Shared: Precision Platformer · Difficult · Platformer

Geometry Dash
Shared: Difficult · Precision Platformer · Platformer

I Am Bread
Shared: Difficult · 3D Platformer · Simulation

Chained Together
Shared: Platformer · Casual · 3D Platformer

Neon White
Shared: 3D Platformer · Action · Platformer

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

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

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

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Difficult · Platformer

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

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

ALTF4
Shared: 3D Platformer · Action · Platformer

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

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

Pseudoregalia
Shared: 3D Platformer · Platformer · 3D

Super Meat Boy 3D
Shared: Precision Platformer · Action · 3D Platformer

Hollow Knight
Shared: Platformer · Difficult · Indie