Games like Pica
Games like Pica include Hidden Folks, Monument Valley 2, FEZ, A Little to the Left, and Webbed. We matched them by the tags players give Pica on Steam (Casual, Platformer, Point & Click, Puzzle, and Design & Illustration): closest matches first, and among equally close ones the better-known games.

Hidden Folks
Shared: Casual · Puzzle · Point & Click

Monument Valley 2
Shared: Casual · Puzzle · Point & Click

FEZ
Shared: Platformer · Puzzle · Casual

A Little to the Left
Shared: Puzzle · Casual · Point & Click

Webbed
Shared: 2D Platformer · Platformer · Exploration

Morphopolis
Shared: Puzzle · Casual · Point & Click

Hidden Through Time
Shared: Casual · Point & Click · Puzzle

Celeste
Shared: Platformer · Precision Platformer · 2D Platformer

Samorost 1
Shared: Casual · Point & Click · Puzzle

Pikuniku
Shared: Casual · Puzzle · Platformer

There Is No Game: Wrong Dimension
Shared: Point & Click · Puzzle · Casual

Is This Seat Taken?
Shared: Casual · Puzzle · Cute

Thank Goodness You're Here!
Shared: Casual · Exploration · 2D Platformer

Botanicula
Shared: Casual · Point & Click · Exploration

Zup! X
Shared: Casual · Puzzle · 2D

Machinarium
Shared: Point & Click · Puzzle · Casual

Gorogoa
Shared: Puzzle · Casual · Point & Click

Monument Valley
Shared: Puzzle · Casual · Design & Illustration

Braid
Shared: Puzzle · Platformer · 2D Platformer

Super Meat Boy
Shared: Platformer · Precision Platformer · 2D Platformer

Sizeable
Shared: Casual · Puzzle · Exploration

Öoo
Shared: Puzzle · 2D Platformer · Platformer

Zup!
Shared: Casual · Puzzle · 2D

Leap Year
Shared: Exploration · 2D Platformer · Platformer