Games like Petty's Adventure: Volcano
Games like Petty's Adventure: Volcano include Zup! S, Zup! 2, LIMBO, Zup!, and Donut County. We matched them by the tags players give Petty's Adventure: Volcano on Steam (Casual, Side Scroller, 2D, Cute, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Zup! S
Shared: Casual · 2D · Indie

Zup! 2
Shared: Casual · 2D · Indie

LIMBO
Shared: Indie · 2D · Platformer

Zup!
Shared: Casual · 2D · Indie

Donut County
Shared: Casual · Cute · Indie

Zup! F
Shared: Casual · 2D · Indie

Zup! X
Shared: Casual · 2D · Indie

Pikuniku
Shared: Casual · Indie · Cute

Zup! 8
Shared: Casual · 2D · Indie

Zup! 3
Shared: Casual · 2D · Indie

FEZ
Shared: Indie · Platformer · Casual

Sonic Mania
Shared: 2D · Platformer · Side Scroller

Toki Tori
Shared: Casual · Indie · Cute

BEEP
Shared: 2D · Indie · Singleplayer

Plants vs. Zombies GOTY Edition
Shared: Casual · Singleplayer · 2D

Unpacking
Shared: Casual · Cute · Relaxing

Slime Rancher 2
Shared: Cute · Singleplayer · Relaxing

Zup! Z
Shared: Casual · 2D · Indie

Carto
Shared: Cute · Indie · Puzzle

A Little to the Left
Shared: Casual · Cute · Relaxing

GRIS
Shared: Indie · Adventure · Singleplayer

Zup! 5
Shared: Casual · 2D · Indie

Florence
Shared: Casual · Indie · Cute

Hollow Knight
Shared: 2D · Platformer · Indie