Games like Hidden Lands
Games like Hidden Lands include Anomaly Agent, Braid, Öoo, Webbed, and LIMBO. We matched them by the tags players give Hidden Lands on Steam (Side Scroller, 2D Platformer, Puzzle Platformer, Hack and Slash, and Collectathon): closest matches first, and among equally close ones the better-known games.

Anomaly Agent
Shared: Side Scroller · 2D Platformer · Hack and Slash

Braid
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Öoo
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Webbed
Shared: 2D Platformer · Puzzle Platformer · Platformer

LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer

Planet of Lana
Shared: Puzzle Platformer · 2D Platformer · Puzzle

The Pedestrian
Shared: Puzzle Platformer · Side Scroller · Puzzle

Trine 2: Complete Story
Shared: Puzzle Platformer · 2D Platformer · Platformer

Thomas Was Alone
Shared: Side Scroller · 2D Platformer · Puzzle Platformer

Katana ZERO
Shared: 2D Platformer · Hack and Slash · Platformer

Celeste
Shared: 2D Platformer · Platformer · Indie

Hue
Shared: Puzzle Platformer · Puzzle · Side Scroller

Afterimage
Shared: 2D Platformer · Side Scroller · Hack and Slash

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · Platformer

Portal 2
Shared: Puzzle Platformer · Puzzle · Platformer

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · 2D

ICEY
Shared: Side Scroller · Hack and Slash · Action

SANABI
Shared: 2D Platformer · Action · Side Scroller

Hidden Through Time
Shared: Hidden Object · Puzzle · Collectathon

Creepy Tale
Shared: Puzzle Platformer · 2D Platformer · Puzzle

Lost Words: Beyond the Page
Shared: Side Scroller · 2D Platformer · Puzzle Platformer

Zup! 4
Shared: Puzzle · Puzzle Platformer · Casual

Brawlhalla
Shared: 2D Platformer · 2D Fighter · Platformer

Toki Tori
Shared: Puzzle · Platformer · Puzzle Platformer