Hollow Knight Silksong hits 7 million copies sold, Team Cherry just revealed a massive Sea of Sorrow expansion secretly in development for 2026

Hollow Knight Silksong just delivered shocking news that has the gaming community buzzing. Team Cherry announced a massive free expansion called Sea of Sorrow coming to all players in 2026. The announcement comes on the heels of the game hitting an incredible 7 million copies sold in just 3 months since its September 4 release.

Sea of Sorrow Expansion Brings Nautical Adventures in 2026

The Sea of Sorrow expansion marks Team Cherry’s commitment to supporting Silksong long-term. Players will venture across and beneath salt-stricken seas in a nautically-themed adventure featuring entirely new content. The expansion promises new areas to explore, challenging new boss encounters, and fresh tools to expand Hornet’s combat and exploration abilities.

Team Cherry kept many details under wraps during the announcement. The studio teased that Hornet’s adventures continue in this expansion, but specifics about gameplay mechanics, new abilities, and story details remain mysterious. This mystery has sparked intense speculation across gaming communities about what underwater horrors await.

Silksong’s Extraordinary Success Reshapes Indie Gaming

Reaching 7 million copies sold in 3 months represents a watershed moment for indie gaming. To put this in perspective, millions more are playing through Xbox Game Pass, bringing total engagement far beyond pure sales figures. The game launched on September 4, 2025, across Nintendo Switch, Switch 2, PlayStation 4, PlayStation 5, Windows, Xbox One, Xbox Series X/S, Linux, and macOS.

This success dwarfs comparable indie releases in 2025. Silksong outperformed its closest indie competitor by more than 3.5 times in the same timeframe. The original Hollow Knight achieved 15 million copies sold over 8 years, meaning Silksong reached nearly half that figure in just 90 days. This explosive performance proves that quality craftsmanship and passionate communities drive commercial success, even for small studios.

What the Expansion Includes and What Remains Unknown

Expansion Element	Details
Title	Hollow Knight: Silksong – Sea of Sorrow
Release Date	2026 (exact date TBA)
Cost	Free for all Silksong owners
Key Features	New areas, bosses, tools, and additional content
Theme	Nautically-themed underwater exploration

Beyond new areas, bosses, and tools, Team Cherry kept the expansion’s specific features secret. The studio revealed plans for even more announcements throughout 2026, suggesting the Sea of Sorrow is only part of a larger content roadmap. Players won’t know exact details about new abilities, story elements, or challenging encounters until closer to launch.

Team Cherry also announced the Hollow Knight: Switch 2 Edition coming in 2026, providing a refreshed version of the original game with enhanced features. The studio emphasized it’s taking a well-deserved break after Silksong’s successful launch before diving into development for both the expansion and platform-specific versions.

Team Cherry Proves Indie Studios Can Compete Globally

This announcement showcases how a 3-person team from Adelaide, Australia created one of 2025’s biggest gaming phenomena. Team Cherry’s commitment to quality over quantity created something special. The studio maintained creative control, delivered a polished product, and earned player loyalty that translates into massive sales numbers.

The decision to support Silksong with free, substantial expansions strengthens player goodwill. Rather than pursuing aggressive monetization, Team Cherry chose to reward the 7 million players who purchased the game. This approach builds long-term community engagement and demonstrates that small developers can succeed through excellent game design and player respect.

What Does This Mean for Hollow Knight’s Future?

The Sea of Sorrow announcement suggests Team Cherry has a multi-year vision for Silksong’s content pipeline. Mentioning “even more plans for 2026 kept under wraps” hints at additional surprises beyond the nautical expansion. The studio could be planning multiple expansions, seasonal content, or special editions for different platforms throughout the year.

For fans, this means Hollow Knight Silksong won’t disappear after launch like so many games do. Continued content keeps players engaged long-term. The 7 million purchase point suggests strong financial success that enables this post-launch support. Team Cherry validated this model by repeatedly affirming its commitment to the game’s community through their announcement.

Sources

• PC Gamer – Reported Silksong’s 7 million copy sales milestone and Sea of Sorrow expansion announcement
• Polygon – Covered the free expansion details and 2026 release window
• Team Cherry Official Blog – Announced Sea of Sorrow expansion and provided official details about features and content roadmap