Hello Neighbor Nicky's Diaries

Hello Neighbor Nicky's Diaries is tinyBuild's mobile-first spin on its stealth series, designed specifically for phones rather than adapted from another platform. The story follows Nicky as she tries to learn what her neighbour, Mr. Peterson, is hiding, amid rumours that he is a killer who keeps kidnapped children in his basement.

Puzzles drive the progress. Players search the environment for hidden objects and use them to unlock secrets tied to Nicky's past, while avoiding detection. Security is tighter than a simple house break-in: there are CCTV cameras to slip past and motion detectors on doors to disable. Gadgets help, including jump boots for reaching higher spots, X-ray glasses for tracking the Neighbor through walls and EMP devices to knock out traps, and, as a series tradition, jugs of glue to throw. Everything builds toward the basement and what waits inside.

The game averages 4.2 from around 40,500 ratings, with 69% five stars and 13% one star, and it has 10,000,000+ installs. It is free with no ads, and one in-app purchase is listed at $6.99 per item. The last update was on 2025-06-03. It has an unusually high requirement of Android 11 or newer, and it is rated Everyone 10+. We list 3 versions, and the newest is a compact 46.7 MB.

Puzzle and stealth fans who enjoyed the original's mystery will like the gadget-driven approach. Owners of phones running older Android versions will unfortunately be locked out.