Games like Lupa
Games like Lupa include Stray, Firewatch, Cairn, Chants of Sennaar, and Jusant. We matched them by the tags players give Lupa on Steam (Adventure, Exploration, Cinematic, Colorful, and Stylized): closest matches first, and among equally close ones the better-known games.

Stray
Shared: Adventure · Exploration · Atmospheric

Firewatch
Shared: Adventure · Atmospheric · Exploration

Cairn
Shared: Exploration · Adventure · Stylized

Chants of Sennaar
Shared: Adventure · Colorful · Indie

Jusant
Shared: Exploration · Adventure · Cinematic

Slime Rancher
Shared: Exploration · Adventure · Colorful

DEATH STRANDING DIRECTOR'S CUT
Shared: Cinematic · Adventure · Atmospheric

My Little Puppy
Shared: Adventure · Colorful · Exploration

Journey
Shared: Adventure · Exploration · Atmospheric

ABZU
Shared: Exploration · Adventure · Atmospheric

A Plague Tale: Requiem
Shared: Adventure · Cinematic · Exploration

Tomb Raider Game of the Year
Shared: Adventure · Third Person · Exploration

What Remains of Edith Finch
Shared: Exploration · Adventure · Atmospheric

Sword of the Sea
Shared: Adventure · Exploration · Stylized

AER Memories of Old
Shared: Adventure · Exploration · Indie

The First Tree
Shared: Adventure · Exploration · Atmospheric

The Witness
Shared: Exploration · Colorful · Adventure

LOST EMBER
Shared: Exploration · Atmospheric · Singleplayer

Carto
Shared: Exploration · Adventure · Indie

FAR: Lone Sails
Shared: Adventure · Exploration · Atmospheric

Copycat
Shared: Adventure · Indie · Exploration

Outer Wilds
Shared: Exploration · Adventure · Atmospheric

Rise of the Tomb Raider™
Shared: Adventure · Exploration · Third Person

A Short Hike
Shared: Exploration · Adventure · Indie