Games like Just Platformer 100
Games like Just Platformer 100 include Vampire Survivors, Banana, Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad, A Dance of Fire and Ice, and Timberman. We matched them by the tags players give Just Platformer 100 on Steam (Casual, Arcade, Puzzle Platformer, 2D, and 1990's): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: 2D · Casual · Indie

Banana
Shared: Casual · 2D · Singleplayer

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Arcade · 2D · Casual

A Dance of Fire and Ice
Shared: Arcade · 2D · Indie

Timberman
Shared: Casual · 2D · Indie

Defy Gravity Extended
Shared: Puzzle Platformer · 2D · Indie

Zup!
Shared: Casual · 2D · Indie

To The Core
Shared: Casual · Arcade · 2D

Peggle Deluxe
Shared: Casual · Arcade · 2D

LIMBO
Shared: Puzzle Platformer · Indie · 2D

Progressbar95
Shared: Casual · Arcade · 2D

Zup! 2
Shared: Casual · 2D · Indie

Zup! F
Shared: Casual · 2D · Indie

Zup! X
Shared: Casual · 2D · Indie

Zup! S
Shared: Casual · 2D · Indie

Cat Goes Fishing
Shared: 2D · Casual · Indie

Razortron 2000
Shared: Casual · Arcade · Indie

Braid
Shared: Puzzle Platformer · 2D · Indie

Game Dev Tycoon
Shared: Casual · Indie · 2D

Zup! 3
Shared: Casual · 2D · Indie

Nubby's Number Factory
Shared: Arcade · Singleplayer · 2D

Zup! 4
Shared: Casual · 2D · Indie

Planes, Bullets and Vodka
Shared: Casual · Arcade · 2D

pureya
Shared: Arcade · Casual · 2D