Hollow Knight: Silksong's Sea of Sorrow Expansion and Physical Release Explained

Silksong isn't done growing. Here's what's confirmed about its first expansion and the physical releases coming later this year.

What happened

Team Cherry confirmed Hollow Knight: Silksong's first major expansion, titled "Sea of Sorrow," arriving sometime in 2026. Separately, physical editions of both Silksong and the original Hollow Knight are locked in for October 16, 2026.

What we know

• Sea of Sorrow: Described as the "first big" Silksong expansion, adding new areas, bosses, and tools. It's free to everyone who owns the game.
• Physical release: A physical edition of Silksong launches October 16, 2026, for PlayStation 5, Xbox One, Xbox Series X/S, and Nintendo Switch 2.
• Original Hollow Knight: Also getting a Switch 2 Edition and a physical re-release for PlayStation 5 and Nintendo Switch 2, both landing the same October 16 date.
• Recent patch: Patch 5 (version 1.0.29926) shipped in March 2026 on PC via Steam and GOG, fixing 16 bugs including enemies and Hornet getting stuck out of bounds, plus added Traditional Chinese localization and refined German text.

What this means

A free, "first big" expansion is a strong signal Team Cherry is treating Silksong as an ongoing platform rather than a finished, shipped-and-done release — consistent with how the original Hollow Knight was supported for years after launch. Pairing that with physical editions of both games on the same date also brings Silksong to platforms (PS5, Xbox) it launched without a disc version on, widening its audience well past its original release footprint.

What's next

Team Cherry hasn't given Sea of Sorrow a specific date within 2026 yet. The October 16 physical releases are the next confirmed milestone.

Frequently asked questions

Is the Sea of Sorrow expansion free? Yes, for everyone who already owns Silksong.

When do physical copies of Silksong release? October 16, 2026, for PS5, Xbox One, Xbox Series X/S, and Nintendo Switch 2.

Is the original Hollow Knight also getting a physical release? Yes — a Switch 2 Edition and physical release for PS5 and Switch 2, both also October 16, 2026.

Sources: Nintendo Life, ScreenRant