Spoilers for Major Upcoming Games Made Public in Achievements Leak
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Further details have emerged about an overnight leak in which Steam achievement lists for numerous unreleased and unannounced games were briefly made public, apparently due to a glitch rather than any hack. As well as Persona 4 Revival, Persona 6 and Kingdom Hearts 4, it has now emerged that Fable, Final Fantasy Resonance, Judas, Kena: Scars of Kosmora, Metro 2039 and Stranger Than Heaven all had achievements exposed, alongside signs of previously unannounced projects, including a Telltale Games Walking Dead collection and a new Tetris title. The leak matters because it spoils story and content details for major titles years ahead of their intended reveals, robbing publishers of control over their own marketing.
The leak was spotted via Exophase, a site that normally only surfaces trophy data once publishers officially post it to the PlayStation and Xbox stores, suggesting the achievement lists were pushed live prematurely by Steam's backend rather than obtained through hacking. Exposed data reportedly reveals Kingdom Hearts 4's Disney-themed worlds and new plot details for Persona 6, both games that remain without release dates and are not expected in 2026; a fuller list of leaked titles has been compiled by Gematsu. It echoes a similar incident involving the now-cancelled Prince of Persia: The Sands of Time remake, whose trophy list was published years early and never ultimately used.
- Steam glitch briefly exposed achievement lists for many unannounced games.
- Kingdom Hearts 4 worlds and Persona 6 story details leaked early.
- Unannounced titles, including a Walking Dead collection and new Tetris, surfaced too.
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Steam achievement lists work a bit like a game's trophy checklist, listing goals players will unlock as they progress. Sites such as Exophase collect this data, but only once a publisher officially submits it ahead of a game's release, so its early appearance suggests the material was uploaded too soon rather than stolen or hacked. Because achievement names and descriptions can hint at plot points, characters or locations, an early leak can give away story details long before a studio is ready to reveal them.
The games affected include several highly anticipated sequels and new entries, among them Persona 4 Revival, Persona 6 and Kingdom Hearts 4, as well as titles such as Fable, Final Fantasy Resonance and Kena: Scars of Kosmora. Some of these are years away from launch, so the leaked details reached the public long before any official marketing campaign. This is not the first time such information has slipped out early; a comparable leak previously affected the Prince of Persia: The Sands of Time remake, a project that was later cancelled.
This matters because publishers usually control when and how story details are revealed, using trailers and marketing to build anticipation without spoiling key moments. An unofficial leak like this takes that control away, meaning fans who want to avoid spoilers may need to be careful with achievement lists and related coverage for a long time before these games are actually released.
More coverage
- Eurogamer — Persona 6, Kingdom Hearts 4 spoilers may have emerged online amid massive achievements leak for unreleased games
- GamesRadar+ — Kingdom Hearts 4, Persona 6, and various "unannounced" games allegedly see their achievements go public as part of massive Steam leak
- GameSpot — Major Steam Leak Reveals Achievements For Persona 6, Kingdom Hearts 4, And Unannounced Games