Welcome to your latest Xbox Game Pass roundup for September 2025! Today, two new titles are heading to the library - one being a PC-only addition, while the other is a brand-new indie title you may have heard about already...
Here's what's new on Xbox Game Pass today:
Cataclismo (PC) - Later Today
"Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist."
Hollow Knight: Silksong (Console, PC, Cloud) - 7am PT / 10am ET / 3pm BST
"As the lethal hunter Hornet, adventure through a kingdom ruled by silk and song! Captured and taken to this unfamiliar world, prepare to battle mighty foes and solve ancient mysteries as you ascend on a deadly pilgrimage to the kingdom’s peak. Hollow Knight: Silksong is the epic sequel to Hollow Knight, the award winning action-adventure. Journey to all-new lands, discover new powers, battle vast hordes of bugs and beasts and uncover secrets tied to your nature and your past."