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Blackthorne's Manor

By Error 404 · 9 December 2025

Puzzle Adventure

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At a glance

Blackthorne's Manor is a puzzle video game developed by Error 404, released on 9 December 2025 on PC.

About

Blackthorne's Manor is a first-person mystery thriller, where logic, puzzles, and the supernatural collide. Search for your missing friend, uncover the secrets of Blackthorne Manor, and escape before the house claims you too.

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Rank · Puzzle—unranked

Released10 months agoDecember 2025

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Steam news

The latest announcements posted on the game's Steam page.

Steam

15 May 2026Christmas Update Branch

For those who missed it, we worked on a christmas update. However, this was a temporary event for the game which we have since removed. We decided to bring it back for those who missed it and was interested as a beta branch which can be accessed in the propert

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Steam

16 January 2026Game Achievements Are Here

Time to get achievements! Both by request as well as an interest prior to release we have decided to put some time into implementing achievements. Due to not being required to complete the game and not much documentation we put them on the back foot. However,

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Steam

12 January 2026Blackthorne's Manor Patch #3

We received a report that an extra ethereal potion was in the game, this was part of a system we were originally testing during our vertical slice but must have forgotten to remove. Due to confusion and well it inherently shouldn't have been there in the relea

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