Games like Tether
Games like Tether include Superflight, Zup! S, AudioSurf, Shelldiver, and Zup!. We matched them by the tags players give Tether on Steam (Casual, Relaxing, Arcade, Platformer, and Physics): closest matches first, and among equally close ones the better-known games.

Superflight
Shared: Relaxing · Casual · Indie

Zup! S
Shared: Casual · Relaxing · Indie

AudioSurf
Shared: Casual · Arcade · Indie

Shelldiver
Shared: Casual · Arcade · Relaxing

Zup!
Shared: Casual · Indie · Relaxing

Webbed
Shared: Physics · 2D Platformer · Relaxing

GRIS
Shared: Indie · Platformer · Relaxing

pureya
Shared: Casual · Arcade · Platformer

A Game About Feeding A Black Hole
Shared: Casual · Relaxing · Indie

Zup! F
Shared: Casual · Indie · Relaxing

Keep on Mining!
Shared: Casual · Relaxing · Indie

Peggle Deluxe
Shared: Casual · Arcade · Physics

Zup! 2
Shared: Casual · Indie · Relaxing

Nodebuster
Shared: Casual · Arcade · Relaxing

Hook
Shared: Casual · Relaxing · Indie

BEEP
Shared: Platformer · Indie · Physics

Zup! X
Shared: Casual · Indie · Relaxing

A Dance of Fire and Ice
Shared: Arcade · Indie · Casual

Orbt XL
Shared: Arcade · Relaxing · Casual

Flower
Shared: Relaxing · Casual · Flight

Zup! 3
Shared: Casual · Indie · Relaxing

LYNE
Shared: Relaxing · Casual · Indie

Rogue Legacy 2
Shared: Arcade · Platformer · Indie

Geometry Dash
Shared: Platformer · 2D · Indie