Games like Project Utgardr
Games like Project Utgardr include Portal 2, Mirror's Edge™, A Story About My Uncle, Valley, and Rise of the Tomb Raider™. We matched them by the tags players give Project Utgardr on Steam (First-Person, Parkour, Adventure, 3D Platformer, and Exploration): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: First-Person · Singleplayer · Platformer

Mirror's Edge™
Shared: Parkour · First-Person · 3D Platformer

A Story About My Uncle
Shared: First-Person · Adventure · Parkour

Valley
Shared: First-Person · Adventure · Parkour

Rise of the Tomb Raider™
Shared: Adventure · Female Protagonist · Singleplayer

Fallout 4
Shared: Exploration · Adventure · Singleplayer

Pseudoregalia
Shared: 3D Platformer · Parkour · Female Protagonist

Portal
Shared: First-Person · 3D Platformer · Singleplayer

Slime Rancher
Shared: Adventure · Exploration · First-Person

Firewatch
Shared: Adventure · First-Person · Exploration

Refunct
Shared: Parkour · 3D Platformer · First-Person

Mirror's Edge™ Catalyst
Shared: Parkour · First-Person · Female Protagonist

What Remains of Edith Finch
Shared: First-Person · Adventure · Exploration

Outer Wilds
Shared: Exploration · Adventure · Singleplayer

The Witness
Shared: First-Person · Exploration · Singleplayer

Sonic Frontiers
Shared: Adventure · 3D Platformer · Exploration

Indiana Jones and the Great Circle
Shared: First-Person · Adventure · Exploration

The Long Dark
Shared: First-Person · Exploration · Adventure

Tomb Raider Game of the Year
Shared: Adventure · Female Protagonist · Singleplayer

Supraland
Shared: First-Person · Adventure · Exploration

Fallout: New Vegas
Shared: First-Person · Singleplayer · Exploration

Tomb Raider: Underworld
Shared: Adventure · Female Protagonist · Singleplayer

Assassin's Creed® Odyssey
Shared: Exploration · Mythology · Open World

Haste
Shared: Parkour · 3D Platformer · Female Protagonist