Games like Riddlewood Manor
Games like Riddlewood Manor include The Room 4: Old Sins, Deponia, Portal 2, Sally Face - Episode One, and The Room. We matched them by the tags players give Riddlewood Manor on Steam (Puzzle, Dark Humor, Story Rich, Adventure, and Horror): closest matches first, and among equally close ones the better-known games.

The Room 4: Old Sins
Shared: Puzzle · Adventure · Point & Click

Deponia
Shared: Puzzle · Adventure · Point & Click

Portal 2
Shared: Puzzle · Dark Humor · Story Rich

Sally Face - Episode One
Shared: Story Rich · Puzzle · Horror

The Room
Shared: Puzzle · Point & Click · Adventure

The Room Three
Shared: Puzzle · Adventure · Point & Click

Servant of the Lake
Shared: Puzzle · Adventure · Story Rich

The Room Two
Shared: Puzzle · Point & Click · Horror

Outer Wilds
Shared: Story Rich · Adventure · Puzzle

Cube Escape Collection
Shared: Puzzle · Point & Click · Horror

Firewatch
Shared: Adventure · Story Rich · Mystery

There Is No Game: Wrong Dimension
Shared: Puzzle · Adventure · Point & Click

Underground Blossom
Shared: Puzzle · Adventure · Escape Room

Rusty Lake Paradise
Shared: Puzzle · Adventure · Point & Click

Fran Bow
Shared: Puzzle · Story Rich · Point & Click

Blue Prince
Shared: Puzzle · Story Rich · Mystery

Bendy and the Ink Machine
Shared: Puzzle · Horror · Story Rich

Chaos on Deponia
Shared: Adventure · Puzzle · Point & Click

Danganronpa: Trigger Happy Havoc
Shared: Story Rich · Horror · Adventure

Amanda the Adventurer
Shared: Puzzle · Horror · Story Rich

The Past Within
Shared: Puzzle · Horror · Escape Room

Samsara Room
Shared: Puzzle · Adventure · Point & Click

We Were Here Together
Shared: Puzzle · Story Rich · Escape Room

Edna & Harvey: Harvey's New Eyes
Shared: Dark Humor · Adventure · Point & Click