Microsoft has revealed the first batch of Game Pass additions for September 2025 and there’s one hornet-shaped title that looms large over the others. After a seven-year wait, Hollow Knight: Silksong arrives on September 4. We’ve known for a few years that the sequel to Team Cherry’s indie blockbuster would be on Game Pass on day one, and it’ll be available on the Ultimate and PC versions of the service.
Xbox announced the Metroidvania’s future debut on Game Pass all the way back at its June 2022 showcase. At the time, it claimed every game shown at the event would be out within the following 12 months. That didn’t exactly happen in Silksong’s case.
Team Cherry confirmed pricing for Silksong this week as well. It’ll cost $20 on all platforms. The developer added that there will be a free Nintendo Switch 2 upgrade pack with “enhanced features” available for Kickstarter backers who receive a Switch key (it’s implied, but not confirmed, that anyone who gets the Switch 1 version will be able to upgrade for free later).
If you’re planning to dive into Silksong as soon as it goes live at 10AM ET on Thursday and you’re looking for something to play on Game Pass in the meantime, it’s maybe worth checking out I Am Your Beast. This is a fast-paced, covert revenge shooter from the folks at Strange Scaffold (Clickolding, TMNT: Tactical Takedown and El Paso, Elsewhere). It’s dropping on the Ultimate, PC and Standard versions of Game Pass today.
On September 3, Nine Sols will join the Game Pass Standard lineup after being on the Ultimate and PC versions of the service since last November. This is a Metroidvania from Devotion developer Red Candle Games, and it was one of our favorite games of 2024.
The other Game Pass additions for the first half of September are:
Real-time strategy game Cataclismo (PC) — September 4 on Game Pass Ultimate, PC Game Pass
3D action adventure Paw Patrol World (Cloud, Console, and PC) — September 10 on Game Pass Ultimate, PC Game Pass and Game Pass Standard
Disaster recovery/construction sim RoadCraft (Cloud and Xbox Series X/S) — September 16 on Game Pass Ultimate and Game Pass Standard
Inevitably, a few games are cycling off of Game Pass too. All You Need is Help, Wargroove 2 and We Love Katamari Reroll+ Royal Reverie are all leaving the library on September 15.
