Games like Polar Penguin
Games like Polar Penguin include Sonic Adventure DX, Sonic Adventure 2, Getting Over It with Bennett Foddy, Zup! S, and SONIC X SHADOW GENERATIONS. We matched them by the tags players give Polar Penguin on Steam (Casual, Action, Singleplayer, Physics, and 3D): closest matches first, and among equally close ones the better-known games.

Sonic Adventure DX
Shared: Platformer · Singleplayer · Action

Sonic Adventure 2
Shared: Action · Platformer · 3D Platformer

Getting Over It with Bennett Foddy
Shared: Singleplayer · Physics · Casual

Zup! S
Shared: Casual · Physics · Singleplayer

SONIC X SHADOW GENERATIONS
Shared: Action · Singleplayer · 3D Platformer

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

Clustertruck
Shared: Action · Singleplayer · Physics

ALTF4
Shared: Physics · Action · 3D Platformer

Gang Beasts
Shared: Action · Casual · Physics

Portal 2
Shared: Singleplayer · Platformer · 3D Platformer

Sonic Frontiers
Shared: Action · Singleplayer · 3D Platformer

BEEP
Shared: Singleplayer · Platformer · Physics

Goat Simulator
Shared: Casual · Physics · Action

Crash Bandicoot™ 4: It’s About Time
Shared: Action · Platformer · 3D Platformer

Garry's Mod
Shared: Physics · Casual · Singleplayer

Superflight
Shared: Casual · Singleplayer · Action

Ratchet & Clank: Rift Apart
Shared: Singleplayer · Action · 3D Platformer

Portal
Shared: Singleplayer · 3D Platformer · Physics

Spyro™ Reignited Trilogy
Shared: Action · 3D Platformer · Singleplayer

Pumpkin Jack
Shared: Action · 3D Platformer · Singleplayer

Minimalism
Shared: Casual · Action · Platformer

Spark the Electric Jester 3
Shared: Action · 3D · 3D Platformer

Tiny and Big: Grandpas Leftovers
Shared: Physics · Platformer · 3D Platformer

Psychonauts
Shared: Singleplayer · Action · Platformer