Games like Black Mirror II
Games like Black Mirror II include The Room, The Room 4: Old Sins, The Room Two, The Room Three, and Servant of the Lake. We matched them by the tags players give Black Mirror II on Steam (Adventure, Point & Click, Horror, Mystery, and Singleplayer): closest matches first, and among equally close ones the better-known games.

The Room
Shared: Point & Click · Mystery · Adventure

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

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

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

Servant of the Lake
Shared: Adventure · Point & Click · Puzzle

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

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

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

Underground Blossom
Shared: Adventure · Point & Click · Puzzle

Little Nightmares
Shared: Adventure · Horror · Singleplayer

Little Nightmares II
Shared: Adventure · Horror · Singleplayer

Outer Wilds
Shared: Adventure · Mystery · Story Rich

Fran Bow
Shared: Point & Click · Adventure · Horror

Firewatch
Shared: Adventure · Mystery · Story Rich

Samsara Room
Shared: Adventure · Point & Click · Puzzle

The Walking Dead
Shared: Adventure · Point & Click · Story Rich

Sherlock Holmes: The Devil's Daughter
Shared: Adventure · Mystery · Story Rich

Murdered: Soul Suspect
Shared: Adventure · Mystery · Horror

The Rewinder
Shared: Adventure · Mystery · Singleplayer

Stray
Shared: Adventure · Singleplayer · Atmospheric

Syberia 3
Shared: Adventure · Point & Click · Puzzle

Poppy Playtime
Shared: Horror · Singleplayer · Puzzle

Chants of Sennaar
Shared: Adventure · Puzzle · Singleplayer

Black Mirror
Shared: Adventure · Point & Click · Horror