Games like Peter World
Games like Peter World include Wobbly Life, Pikuniku, A Short Hike, Slime Rancher, and Cat Quest. We matched them by the tags players give Peter World on Steam (Indie, Casual, Action, Adventure, and Platformer): closest matches first, and among equally close ones the better-known games.

Wobbly Life
Shared: Adventure · Open World · Casual

Pikuniku
Shared: Indie · Casual · Adventure

A Short Hike
Shared: Indie · Adventure · Casual

Slime Rancher
Shared: Adventure · Open World · Cute

Cat Quest
Shared: Adventure · Action · Indie

Hello Kitty Island Adventure
Shared: Adventure · Open World · Casual

Mount & Blade II: Bannerlord
Shared: Open World · Action · Indie

Slime Rancher 2
Shared: Open World · Cute · Adventure

UFO 50
Shared: Indie · Action · Pixel Graphics

Skul: The Hero Slayer
Shared: Indie · Action · Pixel Graphics

The Scroll of Taiwu : Beyond The Dome
Shared: Indie · Open World · Adventure

Broforce
Shared: Action · Pixel Graphics · Indie

MO:Astray
Shared: Indie · Action · Adventure

Stardew Valley
Shared: Pixel Graphics · Indie · Casual

SPORE™
Shared: Open World · Casual · Action

Plebby Quest: The Crusades
Shared: Casual · Indie · Adventure

Terraria
Shared: Adventure · Pixel Graphics · Indie

Woodle Tree Adventures
Shared: Indie · Adventure · Platformer

DAVE THE DIVER
Shared: Casual · Adventure · Pixel Graphics

Dungeon Munchies
Shared: Indie · Action · Adventure

Rain World
Shared: Indie · Platformer · Pixel Graphics

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: Adventure · Action · Casual

BEEP
Shared: Indie · Adventure · Platformer

Shovel Knight: Treasure Trove
Shared: Indie · Platformer · Pixel Graphics

