Games like Subsequence
Games like Subsequence include What Remains of Edith Finch, Firewatch, The Exit 8, Outer Wilds, and Submerged. We matched them by the tags players give Subsequence on Steam (Female Protagonist, Exploration, Walking Simulator, 3D, and Mystery): closest matches first, and among equally close ones the better-known games.

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · Mystery

Firewatch
Shared: Walking Simulator · Mystery · Exploration

The Exit 8
Shared: Exploration · Walking Simulator · 3D

Outer Wilds
Shared: Exploration · Mystery · Story Rich

Submerged
Shared: Exploration · Female Protagonist · Walking Simulator

The Stanley Parable
Shared: Walking Simulator · Comedy · Funny

Monument Valley
Shared: Exploration · Female Protagonist · Relaxing

Carto
Shared: Exploration · Female Protagonist · Relaxing

Journey
Shared: Exploration · Walking Simulator · Relaxing

Call of the Sea
Shared: Female Protagonist · Exploration · Mystery

Quern - Undying Thoughts
Shared: Exploration · Mystery · Walking Simulator

Gone Home
Shared: Walking Simulator · Exploration · Female Protagonist

Riven
Shared: Exploration · Mystery · 3D

Botany Manor
Shared: Exploration · Walking Simulator · Female Protagonist

The Witness
Shared: Exploration · Puzzle · Walking Simulator

CARIMARA: Beneath the forlorn limbs
Shared: Exploration · Mystery · 3D

Blue Prince
Shared: Exploration · Mystery · Puzzle

The Gardens Between
Shared: Female Protagonist · Walking Simulator · 3D

Big Walk
Shared: Exploration · Funny · Puzzle

Scary Game 2: The Mad Shepherd
Shared: Walking Simulator · Dark Comedy · Funny

AER Memories of Old
Shared: Exploration · Female Protagonist · Relaxing

The Painscreek Killings
Shared: Exploration · Mystery · Walking Simulator

GRIS
Shared: Female Protagonist · Relaxing · Indie

Tacoma
Shared: Walking Simulator · Female Protagonist · Exploration