Games like Idle Jumper
Games like Idle Jumper include Banana, Cookie Clicker, Melvor Idle, SANABI, and Katana ZERO. We matched them by the tags players give Idle Jumper on Steam (Casual, Idler, 2D Platformer, Platformer, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Banana
Shared: Casual · Singleplayer · Idler

Cookie Clicker
Shared: Idler · Casual · Indie

Melvor Idle
Shared: Idler · Casual · Singleplayer

SANABI
Shared: 2D Platformer · Singleplayer · Cyberpunk

Katana ZERO
Shared: Platformer · 2D Platformer · Cyberpunk

Super Meat Boy
Shared: Platformer · 2D Platformer · Singleplayer

Shelldiver
Shared: Casual · Idler · Resource Management

Celeste
Shared: Platformer · 2D Platformer · Singleplayer

Keep on Mining!
Shared: Idler · Casual · Singleplayer

Braid
Shared: 2D Platformer · Platformer · Singleplayer

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Hollow Knight
Shared: Platformer · 2D · Singleplayer

Bongo Cat
Shared: Idler · Casual · 2D

Hollow Knight: Silksong
Shared: Singleplayer · Platformer · Indie

Brawlhalla
Shared: Casual · 2D Platformer · Platformer

TBH: Task Bar Hero
Shared: Idler · Casual · Singleplayer

A Game About Feeding A Black Hole
Shared: Casual · Idler · 2D

BEEP
Shared: Platformer · Singleplayer · Indie

FEZ
Shared: Platformer · Casual · Singleplayer

Click the Button
Shared: Casual · Idler · Indie

Sonic Superstars
Shared: 2D Platformer · Platformer · Casual

Oozi: Earth Adventure
Shared: 2D Platformer · Platformer · Casual

Thank Goodness You're Here!
Shared: Casual · 2D Platformer · Platformer

Defy Gravity Extended
Shared: Platformer · Singleplayer · Casual