Games like BallBastic!
Games like BallBastic! include Geometry Dash, Only Climb: Better Together, A Dance of Fire and Ice, Celeste, and Peggle Deluxe. We matched them by the tags players give BallBastic! on Steam (Casual, Arcade, Precision Platformer, Puzzle Platformer, and Difficult): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Difficult · Precision Platformer · Singleplayer

Only Climb: Better Together
Shared: Precision Platformer · Arcade · Difficult

A Dance of Fire and Ice
Shared: Difficult · Arcade · Singleplayer

Celeste
Shared: Precision Platformer · Difficult · Indie

Peggle Deluxe
Shared: Casual · Arcade · Singleplayer

hololive Treasure Mountain
Shared: Casual · Arcade · 3D Platformer

Bloons TD 6
Shared: Casual · Singleplayer · Family Friendly

Getting Over It with Bennett Foddy
Shared: Difficult · Singleplayer · Casual

Super Hexagon
Shared: Difficult · Arcade · Indie

Defy Gravity Extended
Shared: Puzzle Platformer · Casual · Indie

Timberman
Shared: Casual · Arcade · Indie

PAC-MAN WORLD Re-PAC
Shared: 3D Platformer · Arcade · Family Friendly

Zuma's Revenge!
Shared: Casual · Arcade · Singleplayer

Downwell
Shared: Precision Platformer · Arcade · Difficult

Portal
Shared: Puzzle Platformer · 3D Platformer · Singleplayer

BETON BRUTAL
Shared: Precision Platformer · Casual · 3D Platformer

Hans
Shared: Precision Platformer · Difficult · Singleplayer

Donut County
Shared: Casual · Indie · Physics

Orbt XL
Shared: Arcade · Difficult · Casual

Rolled Out!
Shared: Precision Platformer · Casual · Puzzle Platformer

Spin Rhythm XD
Shared: Casual · Difficult · Arcade

MUSYNX
Shared: Casual · Arcade · Singleplayer

Golf With Your Friends
Shared: Casual · Family Friendly · Indie

Vectronom
Shared: Casual · Puzzle Platformer · Precision Platformer