Games like Detective Penguin
Games like Detective Penguin include Duck Detective: The Secret Salami, Duck Detective: The Ghost of Glamping, Donut County, Frog Detective 1: The Haunted Island, and Slime Rancher. We matched them by the tags players give Detective Penguin on Steam (Casual, Detective, Funny, Investigation, and Cute): closest matches first, and among equally close ones the better-known games.

Duck Detective: The Secret Salami
Shared: Detective · Casual · Investigation

Duck Detective: The Ghost of Glamping
Shared: Casual · Detective · Investigation

Donut County
Shared: Casual · Funny · Cute

Frog Detective 1: The Haunted Island
Shared: Casual · Funny · Detective

Slime Rancher
Shared: Cute · Funny · Adventure

Frog Detective 3: Corruption at Cowboy County
Shared: Funny · Casual · Detective

Frog Detective 2: The Case of the Invisible Wizard
Shared: Casual · Funny · Detective

Pikuniku
Shared: Casual · Cute · Adventure

Gang Beasts
Shared: Funny · Casual · Physics

Tails Noir
Shared: Detective · Dialogue Heavy · Adventure

Goat Simulator
Shared: Funny · Casual · Physics

Party Animals
Shared: Casual · Funny · Cute

Comedy Night
Shared: Casual · Funny · Dark Humor

Human Fall Flat
Shared: Funny · Adventure · Physics

MECCHA CHAMELEON
Shared: Casual · Funny · Cute

Her Story
Shared: Investigation · Detective · Interactive Fiction

Garry's Mod
Shared: Casual · Funny · Physics

L.A. Noire
Shared: Detective · Investigation · Adventure

Thank Goodness You're Here!
Shared: Funny · Casual · Adventure

CHUCHEL
Shared: Casual · Funny · Cute

Wobbly Life
Shared: Casual · Adventure · Funny

RV There Yet?
Shared: Funny · Adventure · Casual

There Is No Game: Wrong Dimension
Shared: Funny · Casual · Adventure

WHAT THE GOLF?
Shared: Funny · Casual · Cute