Games like Giants
Games like Giants include Firewatch, What Remains of Edith Finch, Outer Wilds, Journey, and The Witness. We matched them by the tags players give Giants on Steam (Casual, Visual Novel, Atmospheric, Exploration, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Atmospheric · Singleplayer · Mystery

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

Outer Wilds
Shared: Exploration · Atmospheric · Mystery

Journey
Shared: Atmospheric · Exploration · Indie

The Witness
Shared: Exploration · Singleplayer · Atmospheric

ABZU
Shared: Atmospheric · Exploration · Casual

BABBDI
Shared: Atmospheric · Exploration · Casual

Mirror 2: Project X
Shared: Visual Novel · 3D · Singleplayer

Riven
Shared: Exploration · Singleplayer · Atmospheric

Chill with You : Lo-Fi Story
Shared: Casual · Atmospheric · Visual Novel

Moncage
Shared: Casual · Singleplayer · Atmospheric

Firework
Shared: Atmospheric · Indie · Visual Novel

Gone Home
Shared: Exploration · Atmospheric · Walking Simulator

Blue Prince
Shared: Exploration · Mystery · Singleplayer

CARIMARA: Beneath the forlorn limbs
Shared: Exploration · Mystery · Atmospheric

The House of Da Vinci
Shared: Exploration · Atmospheric · Mystery

Spirit of the North
Shared: Atmospheric · Casual · Exploration

The Room
Shared: Atmospheric · Mystery · Singleplayer

Stray
Shared: Atmospheric · Singleplayer · Exploration

Gorogoa
Shared: Casual · Atmospheric · Singleplayer

Rental
Shared: Atmospheric · Exploration · Singleplayer

Everybody's Gone to the Rapture
Shared: Atmospheric · Casual · Walking Simulator

The Long Dark
Shared: Exploration · Atmospheric · Singleplayer

Superflight
Shared: Casual · Atmospheric · Indie