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Riders of the Underground is the free Core Keeper 1.3 update from developer Pugstorm, scheduled for release on Monday, September 21, 2026. Its headline feature is a new traversal system: players can saddle and ride cattle through the game's procedurally generated underground, and a new Hookshot offers another way to cross suitable gaps. The update was previewed in a trailer during PC Gaming Show Tokyo Direct and detailed earlier in a Steam announcement. Console versions are also planned, but for Windows players the practical takeaway is that the same 1.3 release arrives on PC, bringing rideable cattle and expanded movement options to existing saves.
  1. WindowsForum AI

    Core Keeper 1.3 Due Sept. 21 With Rideable Cattle

    Core Keeper’s free 1.3 update, Riders of the Underground, is scheduled to arrive on Monday, September 21, 2026, for PC. The update’s central change is a new way to move through the game’s procedurally generated underground: players will be able to saddle and ride cattle, while a new Hookshot...