Games like Nia: Jewel Hunter
Games like Nia: Jewel Hunter include Chained Together, Portal 2, FEZ, Pikuniku, and Tinykin. We matched them by the tags players give Nia: Jewel Hunter on Steam (Casual, Adventure, Puzzle, Platformer, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Chained Together
Shared: Adventure · Casual · Platformer

Portal 2
Shared: Puzzle · Platformer · Puzzle Platformer

FEZ
Shared: Puzzle · Platformer · Adventure

Pikuniku
Shared: Adventure · Casual · Puzzle

Tinykin
Shared: 3D Platformer · Action-Adventure · Puzzle

LIMBO
Shared: Puzzle · Platformer · Puzzle Platformer

Tomb Raider IV-VI Remastered
Shared: Adventure · Platformer · Puzzle

Spirit of the North
Shared: Adventure · Casual · Puzzle

Refunct
Shared: 3D Platformer · Casual · Platformer

Sonic Frontiers
Shared: Adventure · 3D Platformer · Action-Adventure

Omno
Shared: Adventure · Exploration · Platformer

COCOON
Shared: Adventure · Puzzle · Exploration

Trine 2: Complete Story
Shared: Platformer · Action-Adventure · Puzzle

A Hat in Time
Shared: 3D Platformer · Adventure · Platformer

Trine 3: The Artifacts of Power
Shared: Action-Adventure · 3D Platformer · Puzzle Platformer

Ori and the Will of the Wisps
Shared: Platformer · Adventure · Puzzle

The Last Campfire
Shared: Adventure · Puzzle · Cute

Moss VR
Shared: Adventure · Puzzle · Action-Adventure

ANIMAL WELL
Shared: Puzzle · Platformer · Exploration

Wavetale
Shared: Adventure · Platformer · Action-Adventure

Stray
Shared: Adventure · Puzzle · Exploration

Moncage
Shared: Casual · Puzzle · Adventure

Monument Valley
Shared: Puzzle · Adventure · Casual

Toree 2
Shared: Adventure · Platformer · 3D Platformer