Games like Seven Doors
Games like Seven Doors include The Room, The Room Two, The Room Three, The Room 4: Old Sins, and Boxes: Lost Fragments. We matched them by the tags players give Seven Doors on Steam (Hidden Object, Puzzle, 3D, Casual, and Mystery): closest matches first, and among equally close ones the better-known games.

The Room
Shared: Puzzle · Mystery · Hidden Object

The Room Two
Shared: Puzzle · Hidden Object · Mystery

The Room Three
Shared: Puzzle · Mystery · Hidden Object

The Room 4: Old Sins
Shared: Puzzle · Mystery · Hidden Object

Boxes: Lost Fragments
Shared: Puzzle · Mystery · Casual

The House of Da Vinci
Shared: Hidden Object · Puzzle · Mystery

Firewatch
Shared: Mystery · Atmospheric · First-Person

Gorogoa
Shared: Puzzle · Casual · Indie

Return of the Obra Dinn
Shared: Puzzle · Mystery · Atmospheric

Morphopolis
Shared: Puzzle · Hidden Object · Casual

The Witness
Shared: Puzzle · First-Person · Singleplayer

Poppy Playtime
Shared: Puzzle · First-Person · Singleplayer

Outer Wilds
Shared: Mystery · Puzzle · Atmospheric

What Remains of Edith Finch
Shared: Mystery · Atmospheric · First-Person

Blue Prince
Shared: Puzzle · Mystery · First-Person

Riven
Shared: Puzzle · First-Person · 3D

Sizeable
Shared: Puzzle · Hidden Object · Casual

Moncage
Shared: Puzzle · Casual · Singleplayer

The Death | Thần Trùng
Shared: Puzzle · Casual · Realistic

Call of the Sea
Shared: Puzzle · First-Person · Mystery

Chants of Sennaar
Shared: Puzzle · Singleplayer · Indie

Librarian: Tidy Up the Arcane Library!
Shared: Puzzle · Hidden Object · Casual

Garten of Banban
Shared: Puzzle · First-Person · 3D

The Talos Principle
Shared: Puzzle · First-Person · Atmospheric