Last updated: 26 July 2026

Silksong Sea of Sorrow DLC Guide

Team Cherry surprised Hollow Knight: Silksong players by announcing a full expansion less than four months after the game's September 2025 launch. Sea of Sorrow is shaping up to be a substantial, free addition to Hornet's adventure — but details are still thin, and a lot of what circulates online is speculation dressed up as fact. Here's exactly what's confirmed, what's rumored, and what to expect.

01What Is Sea of Sorrow?

Sea of Sorrow is a free expansion for Hollow Knight: Silksong, revealed by developer Team Cherry on December 15, 2025 as part of an end-of-year update. It's described as a nautically themed continuation of Hornet's story, built around a new region shaped by the sea.

Team Cherry's own announcement text describes it simply: "New areas, bosses, tools, and more! Hornet's adventures continue in our nautically themed expansion." That's the extent of what the studio has officially detailed so far — everything else you'll see about specific bosses, items, or story beats is third-party speculation.

02Release Date: When Does It Come Out?

The only release window Team Cherry has confirmed is sometime in 2026 — there is no specific month or date yet. Given Team Cherry's history of long, quiet development stretches (Silksong itself took years longer than originally teased), treat any specific month you see reported elsewhere as unconfirmed until the studio says otherwise.

One meaningful signal: on March 16, 2026, Team Cherry confirmed that no major Silksong updates will release until after Sea of Sorrow ships, which suggests it's the team's primary focus rather than a side project squeezed in alongside other work.

03Price and Platforms

Sea of Sorrow is free for everyone who owns Silksong — Team Cherry has been explicit that this is not paid DLC. It will apply to the same platforms Silksong already ships on (PC, Nintendo Switch, PlayStation, and Xbox); Team Cherry hasn't published a platform-by-platform breakdown or said any platform will get it later than another.

04What's Confirmed About the Content

Beyond the theme, Team Cherry's own wording confirms only a short list of content categories:

• New areas with a nautical, underwater feel — Team Cherry's teaser imagery leans into deep-sea and coastal visuals.
• New bosses to fight in those areas.
• New tools for Hornet, expanding her moveset the same way Silksong's base tools do.
• "And more" — Team Cherry's own phrasing, deliberately left open.

05What's Speculation (Not Yet Confirmed)

A lot of the detail floating around fan sites goes further than anything Team Cherry has actually said. In particular, names like a returning Pharloom Bay, a submersible traversal tool, or a cut "lab" area come from fans mining Silksong's game files for unused content and assets, not from an official Team Cherry statement. It's a reasonable guess — cut content often resurfaces in later updates — but until Team Cherry names these areas directly, treat them as speculation rather than confirmed features.

Similarly, no specific bosses, story characters, or plot details have been named publicly. Anything you read with a specific boss name attached to Sea of Sorrow right now is not something Team Cherry has confirmed.

06How to Stay Updated

Team Cherry has said more details will come "shortly before" launch rather than in a long lead-up, which is consistent with how they handled Silksong's own reveal. The most reliable way to catch the announcement is Team Cherry's own channels (their website and social accounts) rather than aggregator sites repeating rumors — this guide will be updated once Team Cherry confirms a release date or more content details.