4 Penny Coffins is a werewolf-style competitive mystery game from Other Ocean Interactive, set in Whitechapel, London in 1888, for up to eight players. An open beta ran until October 13, 2026, and a PC Steam release is planned with Japanese language support.
Other Ocean Interactive has spent the year explaining 4 Penny Coffins in public before releasing it. The developer, known for Project Winter, set the game in Whitechapel, London in 1888, where one player becomes Jack the Ripper and up to eight others investigate the murders. The first dev diary, in early July, described a game played across three phases and focused on the investigation phase. Evidence there is a physical item that can be hidden or tampered with, and the Ripper can interfere with clues. The second dev diary, in August, added the death system: executed or murdered players return as ghosts who collect evidence but cannot speak to the living.
Both diaries pointed to a PC Steam release with Japanese support. The open beta, which opened in October and ran until October 13, was the first time the public could play. It included a solo and co-op Magistrate mode and a PvP Ripper mode at no cost. The beta kept the eight-player ceiling from the diaries. The studio has framed the design around unreliable evidence, a problem distinct from the survival distrust of Project Winter.
Coverage has consistently named the same platforms and format. No story states a release window beyond the planned PC Steam launch. No price, studio size, or additional platform has been given.
Synthesized by Yomimono from the cited Yomimono stories below, each itself
sourced, then editorially reviewed. Every
fact links the story it came from.
Facts
- Release
- game · October 13 · beta · 2026-10-07
- Release
- game · planned · PC Steam · 2026-10-07
- Release
- game · TBA · 2026-07-04
- Announced
- open beta for up to eight players (beta) · 2026-10-07
- Announced
- game · 2026-08-11
- Noted
- Set in 1888 London · 2026-08-11
- Noted
- up to eight players investigate nightly murders by the Ripper · 2026-08-11
- Noted
- features a death system where executed or murdered players return as ghosts who can collect evidence but cannot speak with the living · 2026-08-11
- Noted
- scheduled for release on PC via Steam · 2026-08-11
- Noted
- supports Japanese · 2026-08-11
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6d ago
Other Ocean Interactive has opened an open beta for 4 Penny Coffins, a werewolf-style competitive mystery game for up to eight players. The beta runs until October 13 and includes a solo and co-op Magistrate mode and a PvP Ripper mode at no cost. Set in Whitechapel, London in 1888, one player becomes the Ripper while the others investigate. A PC Steam release is planned with Japanese language support.
Aug 11
Other Ocean Interactive, developer of Project Winter, has released a development diary for its werewolf-style PvP mystery game 4 Penny Coffins. Set in 1888 London, up to eight players investigate nightly murders by the Ripper. The game features a death system where executed or murdered players return as ghosts who can collect evidence but cannot speak with the living. It is scheduled for release on PC via Steam and supports Japanese.
Jul 4
The developer of Project Winter released a dev diary for the new social deduction game 4 Penny Coffins, set in 1888 London. Players investigate Jack the Ripper's murders across three phases. The diary focuses on the investigation phase, where evidence is a physical item that can be hidden or tampered with, and the Ripper can interfere with clues.