Games like One Rainy Night
Games like One Rainy Night include The Case of the Golden Idol, Murders on the Yangtze River, Return of the Obra Dinn, OneShot, and The Rewinder. We matched them by the tags players give One Rainy Night on Steam (Hidden Object, Puzzle, 2D, Detective, and Multiple Endings): closest matches first, and among equally close ones the better-known games.

The Case of the Golden Idol
Shared: Puzzle · Detective · 2D

Murders on the Yangtze River
Shared: Puzzle · Detective · Story Rich

Return of the Obra Dinn
Shared: Puzzle · Detective · Story Rich

OneShot
Shared: Story Rich · Puzzle · 2D

The Rewinder
Shared: Puzzle · Detective · 2D

The Roottrees are Dead
Shared: Puzzle · Detective · Story Rich

Sherlock Holmes: The Devil's Daughter
Shared: Detective · Puzzle · Story Rich

The Room
Shared: Puzzle · Hidden Object · Mystery

Strange Horticulture
Shared: Puzzle · Detective · Mystery

Papers, Please
Shared: Puzzle · Multiple Endings · Story Rich

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

The Rise of the Golden Idol
Shared: Detective · Puzzle · 2D

Gorogoa
Shared: Puzzle · Casual · 2D

Phoenix Wright: Ace Attorney Trilogy
Shared: Detective · Story Rich · Puzzle

The Room Three
Shared: Puzzle · Hidden Object · Mystery

There Is No Game: Wrong Dimension
Shared: Puzzle · Casual · 2D

Please, Don’t Touch Anything
Shared: Puzzle · Multiple Endings · 2D

The Death Game Report
Shared: Puzzle · Casual · 2D

No Case Should Remain Unsolved
Shared: Puzzle · Investigation · Story Rich

Undertale
Shared: Multiple Endings · Story Rich · 2D

Enigma of Fear
Shared: Detective · Puzzle · Investigation

Chants of Sennaar
Shared: Puzzle · Detective · Adventure

Duck Detective: The Secret Salami
Shared: Detective · Casual · Investigation

The Wolf Among Us
Shared: Detective · Multiple Endings · Story Rich