1 source Sep 10
Core Keeper's Underground Riders Update Lands September 21 With Rideable Animals
Core Keeper's free major update Underground Riders is set for September 21, 2026 on all platforms.
Reporting from 1 source: Game Spark.
Why it matters
The update arrives during Tokyo Game Show 2026, where the same build is playable on the show floor before release, giving the 1.3 content a public test ahead of the two further versions the developers have already named.
It adds a Saddle item that lets players ride livestock animals and issue them commands such as waiting, roaming, or following, plus a Hookshot for crossing gaps and holes, the Moss sub-biome of green moss over stone ruins, new pets with their own abilities, weapons, accessories, and armor. The update is version 1.3; 1.4 Trials of the Abyss and 1.5 Beyond the Rift are announced for later.
The update carries the version number 1.3, which the developers had previously announced. Versions 1.4, titled Trials of the Abyss, and 1.5, titled Beyond the Rift, are announced to follow.
At Tokyo Game Show 2026 the update is playable before its September 21 release, and visitors who try it receive a Core Keeper original sticker. The booth also runs an interactive project where visitors place stickers on a poster to build the underground world. The show runs September 17 to September 21 at Makuhari Messe, Hall 4, booth 04-C08.
Written with AI by Yomimono from the 1 cited source below, including Japanese-language reporting where cited. See our editorial policy.
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