Games like OnlyGame
Games like OnlyGame include Cookie Clicker, Shelldiver, A Game About Feeding A Black Hole, Zup! X, and Nodebuster. We matched them by the tags players give OnlyGame on Steam (Casual, Rhythm, Design & Illustration, Point & Click, and Incremental): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Casual · Incremental · 2D

Shelldiver
Shared: Casual · Incremental · 2D

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

Zup! X
Shared: Casual · 2D · Point & Click

Nodebuster
Shared: Casual · Incremental · 2D

Click the Button
Shared: Casual · Incremental · Point & Click

Monument Valley
Shared: Casual · Design & Illustration · Relaxing

Muse Dash
Shared: Rhythm · Casual · 2D

A Dance of Fire and Ice
Shared: Rhythm · 2D · Casual

Hidden Folks
Shared: Casual · Point & Click · 2D

There Is No Game: Wrong Dimension
Shared: Point & Click · Casual · Indie

Zup!
Shared: Casual · 2D · Point & Click

Monument Valley 2
Shared: Casual · Design & Illustration · Point & Click

Digseum
Shared: Casual · Incremental · Point & Click

Zuma Deluxe
Shared: Casual · Match 3 · 2D

Passpartout: The Starving Artist
Shared: Casual · Design & Illustration · Relaxing

Samorost 1
Shared: Casual · Point & Click · Relaxing

Keep on Mining!
Shared: Casual · Incremental · Relaxing

Zup! 3
Shared: Casual · 2D · Point & Click

Zup! 2
Shared: Casual · 2D · Point & Click

AudioSurf
Shared: Rhythm · Casual · Colorful

Dressmaker
Shared: Design & Illustration · Casual · Crafting

That's not my Neighbor
Shared: Casual · Point & Click · Adventure

Zup! F
Shared: Casual · 2D · Point & Click