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Core Keeper

Core Keeper's free major update Underground Riders, version 1.3, is set for September 21, 2026 on all platforms, with versions 1.4 Trials of the Abyss and 1.5 Beyond the Rift announced for later. The game is also being shown at Tokyo Game Show 2026 as part of Fireshine Games' first booth, alongside Densha Attack and Far Far West.

Synthesized from 7 Yomimono stories · updated 4d ago

Core Keeper's post-launch support now runs through a three-part arc called the Road to the Great Maw, following the January 28 release of Void and Current. Pugstorm split the project into versions 1.3 Riders of the Underground, 1.4 Trials of the Abyss, and 1.5 Beyond the Rift because it grew too large for one update; the first two deepen existing systems while the third is the final chapter. The August community update confirms the studio prepared teasers ahead of the updates, with smaller patches planned after 1.3.

The first part has a date and a name. Underground Riders launches September 21, 2026 on all platforms and adds rideable livestock via a Saddle item, with commands to wait, roam, or follow, plus a Hookshot for crossing gaps, the Moss sub-biome, new pets with abilities, and new weapons, accessories, and armor. It appears during Tokyo Game Show 2026, where the same build is playable on the show floor before release.

Fireshine Games is running its own booth at Tokyo Game Show 2026 for the first time, showing Core Keeper, Densha Attack, and Far Far West. Head of Marketing Tina Moore credits Core Keeper's Japanese results to local partners, influencers, and community managers, including Neon Noroshi, rather than exporting an existing marketing playbook. Densha Attack is preparing a hololive collaboration.

Key facts

Upcoming update date
Underground Riders (version 1.3) is set for September 21, 2026 on all platforms. ↗
Update contents
The update adds a Saddle item for riding livestock, a Hookshot, the Moss sub-biome, new pets, weapons, accessories, and armor. ↗
Later versions
Version 1.4 Trials of the Abyss and version 1.5 Beyond the Rift are announced for later. ↗
Roadmap structure
The Road to the Great Maw plan splits the final major update into three parts: 1.3, 1.4, and 1.5. ↗
Prior release
Void and Current released on January 28. ↗
Publisher booth
Fireshine Games is running its own booth at Tokyo Game Show 2026 for the first time, showing Core Keeper, Densha Attack, and Far Far West. ↗
Japanese promotion
Core Keeper's Japanese success came from matching a popular genre with local partners, influencers, and community managers, including Neon Noroshi. ↗
Steam sale
Core Keeper is 40% off on Steam until September 8. ↗

Timeline

Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.

Facts

Noted
showing at Fireshine Games booth at Tokyo Game Show 2026 · 2026-09-20
Noted
prepared several teasers ahead of the updates · 2026-09-02
Noted
Core Keeper is 40% off on Steam until September 8 · 2026-09-02
Noted
Smaller updates are planned, with the first after 1.3 · 2026-09-02
Noted
Core Keeper's roadmap completion · 2026-08-17
Release
game · 2026-09-21 · 2026-09-10
Release
game · January 28 · 2026-08-15
Release
game · within 2026 · 2026-08-11
Announced
version 1.4 Trials of the Abyss · 2026-09-10
Announced
version 1.5 Beyond the Rift · 2026-09-10
Announced
three connected updates: 1.3 Underground Rider, 1.4 Trial of the Abyss, and 1.5 Beyond the Rift · 2026-09-02
Announced
The Road to the Great Maw major update, split into three versions: Ver.1.3 'Riders of the Underground', Ver.1.4 'Trials of the Abyss', and Ver.1.5 'Beyond the Rift' · 2026-08-15
Announced
roadmap 'The Path to the Great Maw' spanning three updates · 2026-08-11
Announced
next large-scale update 'The Path to the Great Maw' will be split across three version updates · 2026-08-11

Connections

Produces of
pugstorm

Structured graph also available as JSON at /public/entities/core-keeper. CC BY 4.0.

All coverage

Sep 20

Fireshine Games Credits Japan Team For Core Keeper Success

At Tokyo Game Show 2026, UK publisher Fireshine Games is running its own booth for the first time, showing Core Keeper, Densha Attack and Far Far West, a co-op action game for up to four players. Head of Marketing Tina Moore says Core Keeper's Japanese success came from matching a popular genre with local partners, influencers and community managers, including Neon Noroshi. Densha Attack is preparing a hololive collaboration.

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. 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.

Sep 2

Core Keeper Devs Admit They Prepared Teasers Ahead of Road to the Great Maw Updates

Fireshine Games published the August 2026 community update for Core Keeper, recapping the upcoming Road to the Great Maw content plan. The studio admitted it could not hold back and prepared several teasers ahead of the updates. The plan is three connected updates: 1.3 Underground Rider, 1.4 Trial of the Abyss, and 1.5 Beyond the Rift. Smaller updates are planned, with the first after 1.3. Core Keeper is 40% off on Steam until September 8.

Aug 17

Weekly Spalan: Ghost Recon 25th Anniversary Showcase Tops Game Spark Ranking

Game Spark's weekly ranking for August 7-13, 2026, places the Ghost Recon 25th Anniversary Showcase at number one. The showcase included a free update for Ghost Recon Wildlands and announced a new game. Other top articles covered Core Keeper's roadmap completion, a Dreamcast-era adventure game retrospective, and a Super Robot Wars Z column.

Aug 15

Core Keeper Roadmap Splits Final Major Update Into Three Parts

Pugstorm revealed the full plan for the Core Keeper major update 'The Road to the Great Maw', which follows the January 28 release of 'Void and Current'. The update was originally one project but grew large enough to split into three versions: Ver.1.3 'Riders of the Underground', Ver.1.4 'Trials of the Abyss', and Ver.1.5 'Beyond the Rift'. The first two deepen existing systems, and the third is the final chapter.

Aug 11

Core Keeper Roadmap 'The Path to the Great Maw' Spans Three Updates

Developer Pugstorm unveiled a new roadmap for Core Keeper. The next large-scale update, 'The Path to the Great Maw,' is too large for a single update and will be split across three version updates. The first part, version 1.3 'Riders of the Underground,' is complete and in final testing, scheduled for release within 2026.

Jun 27

Super Survival Summer! Bundle Packs 10 Survival Games on Steam

A new Steam bundle, 'Super Survival Summer!', offers 10 popular survival games including Palworld, ARK: Survival Ascended, and Core Keeper at a combined price of 16,884 yen, down from 37,950 yen. The bundle applies an extra 25% discount on top of individual sale prices, and the price adjusts for titles already owned.