# Steam may have leaked achievements for countless forthcoming PC games via a third party site, including Persona 6, Ace Combat 8, and even some unannounced games

- URL: https://talkfuse.com/story/steam-may-have-leaked-achievements-for-countless-forthcoming-pc-games-via-a-third-party-site-including-persona-6-ace-combat-8-and-even-some-unannounced-games/
- Published: 2026-09-09T15:15:36+00:00
- Updated: 2026-09-09T21:24:29+00:00
- Original publisher: PC Gamer
- Original article: https://www.pcgamer.com/gaming-industry/steam-may-have-leaked-achievements-for-countless-forthcoming-pc-games-via-a-third-party-site-including-persona-6-ace-combat-8-and-even-some-unannounced-games/
- Topics: Art, Culture, Entertainment, Gaming

## Key points

- Steam reportedly leaked achievement data for unannounced PC games via a tracker site
- Persona 6 and Ace Combat 8 said to be among titles named
- Leak stems from early backend uploads of achievement lists before release

## Summary

Steam appears to have inadvertently exposed achievement data for numerous unreleased and unannounced PC games through a third-party tracking site, with reports naming long-awaited titles such as Persona 6 and Ace Combat 8 among those affected. Several entirely unannounced projects were also reportedly included in the exposed data, raising the prospect that some publishers could face pressure to reveal games earlier than planned and prompting renewed scrutiny of how securely Steam handles pre-release information.

Such leaks typically arise because developers must upload achievement lists to Steam's backend well ahead of a game's release, and third-party sites that track this data can surface it before any official announcement is made. Since achievement names and descriptions can hint at a game's existence, platform or content, the affected studios were left to decide whether to address the leak directly or stick to their original marketing timelines, though no further official confirmation or response from Valve or the named publishers followed.

## Coverage

- [PC Gamer: Steam may have leaked achievements for countless forthcoming PC games via a third party site, including Persona 6, Ace Combat 8, and even some unannounced games](https://www.pcgamer.com/gaming-industry/steam-may-have-leaked-achievements-for-countless-forthcoming-pc-games-via-a-third-party-site-including-persona-6-ace-combat-8-and-even-some-unannounced-games/)
- [Rock Paper Shotgun: Steam achievements for Persona 6, Fable, Stranger Than Heaven and a host of other upcoming PC games appear to have leaked](https://www.rockpapershotgun.com/steam-achievements-for-persona-6-fable-stranger-than-heaven-and-a-host-of-other-upcoming-pc-games-appear-to-have-leaked)
- [IGN: Apparent Steam Leak Reveals Persona 6 and Kingdom Hearts 4 Achievements, Unannounced Games](https://www.ign.com/articles/apparent-steam-leak-reveals-persona-6-and-kingdom-hearts-4-achievements-unannounced-games)
- [Destructoid: Steam somehow leaked a massive number of spoiler-filled achievements for dozens of upcoming games, including unannounced ones](https://www.destructoid.com/steam-leak-sept-2026-many-games-spoilers/)

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