Games like Stamp Boy /
Games like Stamp Boy / include Shovel Knight: Treasure Trove, SANABI, Skul: The Hero Slayer, Broforce, and Celeste. We matched them by the tags players give Stamp Boy / on Steam (Indie, Casual, Action, Adventure, and Platformer): closest matches first, and among equally close ones the better-known games.

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

SANABI
Shared: Action · Pixel Graphics · Adventure

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

Broforce
Shared: Action · Pixel Graphics · Indie

Celeste
Shared: Indie · Pixel Graphics · Platformer

Gato Roboto
Shared: Indie · Action · Adventure

Out There Somewhere
Shared: Indie · Platformer · Adventure

Pikuniku
Shared: Indie · Casual · Adventure

Hollow Knight
Shared: Platformer · Indie · 2D

Vampire Survivors
Shared: Indie · Pixel Graphics · 2D

Sonic Origins
Shared: Action · Adventure · Casual

UFO 50
Shared: Indie · Action · Pixel Graphics

FEZ
Shared: Indie · Platformer · Pixel Graphics

Sonic Mania
Shared: Platformer · 2D · Retro

Jump King
Shared: Indie · Adventure · Platformer

BEEP
Shared: Indie · Adventure · Platformer

Axiom Verge
Shared: Indie · Platformer · Action

The Messenger
Shared: Platformer · Indie · Retro

Katana ZERO
Shared: Action · Pixel Graphics · Indie

Freedom Planet
Shared: Action · Platformer · Indie

MO:Astray
Shared: Indie · Action · Adventure

Cyberhunt
Shared: Indie · Casual · Action

Bloodstained: Curse of the Moon
Shared: Action · Platformer · Pixel Graphics

Hollow Knight: Silksong
Shared: Indie · 2D · Platformer