Games like Blankspace
Games like Blankspace include The Room, The Room Three, OneShot, Gorogoa, and Twelve Minutes. We matched them by the tags players give Blankspace on Steam (Indie, Casual, Adventure, Sexual Content, and Puzzle): closest matches first, and among equally close ones the better-known games.

The Room
Shared: Puzzle · Mystery · Adventure

The Room Three
Shared: Adventure · Indie · Puzzle

OneShot
Shared: Indie · Story Rich · Puzzle

Gorogoa
Shared: Indie · Puzzle · Casual

Twelve Minutes
Shared: Indie · Adventure · Puzzle

The Wolf Among Us
Shared: Adventure · Story Rich · Choices Matter

The Room Two
Shared: Puzzle · Mystery · Indie

The Room 4: Old Sins
Shared: Puzzle · Adventure · Mystery

Zero Escape: The Nonary Games
Shared: Puzzle · Visual Novel · Mystery

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

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Puzzle

Servant of the Lake
Shared: Adventure · Puzzle · Indie

Sally Face - Episode One
Shared: Indie · Adventure · Puzzle

Firewatch
Shared: Adventure · Mystery · Indie

Chants of Sennaar
Shared: Adventure · Indie · Puzzle

Boxes: Lost Fragments
Shared: Puzzle · Adventure · Casual

Outer Wilds
Shared: Adventure · Mystery · Puzzle

Raging Loop
Shared: Adventure · Indie · Mystery

Rusty Lake Paradise
Shared: Indie · Puzzle · Adventure

Dispatch
Shared: Sexual Content · Choices Matter · Story Rich

Tick Tock: A Tale for Two
Shared: Indie · Puzzle · Adventure

Papers, Please
Shared: Indie · Puzzle · Singleplayer

Samsara Room
Shared: Indie · Adventure · Puzzle

What Remains of Edith Finch
Shared: Mystery · Adventure · Story Rich