A new incident related to Steam has exposed achievement data for more than 145 unreleased or unannounced games. The leaked data reveals a ton of projects that developers and studios have yet to officially reveal. The new information was found on achievement-tracking services such as Exophase and SteamDB after previously private Steam API data apparently became accessible.
🚨 HERE’S THE MASSIVE LIST OF GAMES CAUGHT IN TODAY’S STEAM LEAK ▫️ Persona 6▫️ Kingdom Hearts IV▫️ Persona 4 Revival▫️ Fable▫️ Brazilian Drug Dealer▫️ Penis Bird▫️ Gears of War: E-Day▫️ Silent Hill: Townfall▫️ Dragon Ball Xenoverse 3▫️ Ace Combat 8: Wings of Thieves… pic.twitter.com/PpOH6VfuSK— GameVerse (@TheGameVerse) September 9, 2026
The incident includes highly anticipated games such as Persona 6 and Kingdom Hearts 4, alongside numerous announced projects and a surprising number of games that haven’t been officially revealed. Here are all the games that we’ve found data for so far.
Biggest Announced Games Affected by the Steam Leak
Image Credit: Square Enix
Image Credit: Atlus
Image Credit: Remedy Entertainment
Image Credit: The Coalition
Image Credit: Konami
The exposed data includes a ton of upcoming titles, including several games that have already been announced but still have plenty of details under wraps. Some achievement lists reportedly contain potential spoilers, while others simply confirm that Steam infrastructure exists for the project.
Here are some of the notable announced games appearing in the leak:
Ace Combat 8
Attack on Titan 3
Control Resonant
Clive Barker’s Hellraiser: Revival
Crazy Taxi: World Tour
Deus Ex Remastered
Dragon Ball Xenoverse 3
Dynasty Warriors 3 Complete Edition Remastered
Fable
Final Fantasy Resonance
Gears of War: E-Day
Gundam Rogue Orbit
Horizon Hunters Gathering
Judas
Kena: Scars of Kosmora
Kingdom Hearts 4
Mega Man: Dual Override
METRO 2039
Minecraft Dungeons 2
Persona 4 Revival
Persona 6
Professor Layton and the New World of Steam
Rayman Legends: Retold
Silent Hill: Townfall
Star Wars: Galactic Racer
Stranger Than Heaven
Tomb Raider: Legacy of Atlantis
Trails in the Sky 2nd Chapter
Trine 6: Together in Time
Turok Origins
Uta Macross
Witchbrook
The biggest games on the list are no doubt Persona 6 and Kingdom Hearts 4. Their achievement data contains a ton of information that has not been publicly discussed, making those entries considerably more sensitive than a simple confirmation of a Steam version.
Other affected projects include Last Epoch, Lords of the Fallen II, Nivalis Nights, Road Kings, Squadron 42, Tales of Eternia Remastered, Terranigma, Thief: The Dark Project Remastered, Touhou Kyoumakou, Tropico 7, Valor Mortis, War Dogs, and Warhammer Survivors.
Unannounced Games Revealed By the Steam Leak
Image Credit: Valve
There is also a collection of projects that have not received an official announcement. Because some entries only have placeholder achievements or App IDs, their existence here should not be treated as confirmed releases.
Among the reported unannounced projects are:
Two unannounced Warhammer games
An unannounced Avengers game
A Balatro sequel or spin-off
An unannounced Brawl Stars game
A new Candy Crush title
An unannounced Dune game
A new Heroes of Newerth project
A Nickelodeon life-sim inspired by Animal Crossing
A new Raiden Fighters collection
A Sea of Thieves sequel or spin-off
A Shrek 2 remaster or other Shrek project
Sin Reloaded
A new Slime Rancher game
An unannounced Sonic game
An unannounced Stellaris project
Toem 2
A Twin Peaks game
A new The Walking Dead collection from Telltale
An unannounced Tetris game
Professor Layton vs. Phoenix Wright: Ace Attorney
An unannounced Rurouni Kenshin game
There are also stranger entries, including Penis Bird, Custom Hobo, Fright Train, Stupid Never Dies, HoloTrials, Order of the Sink Star, and Warrior Cats: Clans of the Forest.
The incident is believed to stem from a Valve API error and not the work of a hacker. Exophase owner Mike Bendel said on the ReserEra forums that achievement information that should have been private suddenly became accessible, allowing automated services to collect it.
These leaked Steam achievements are not definitive proof that every listed game will launch. But there sure are a ton of games. Which of these games are you interested in the most? Let us know in the comments!
This post belongs to FandomWire and first appeared on FandomWire
