Rain World Announces Major Update with New Content and Features

September 22, 2025 - Today, developer NoClip announces a significant update for their critically acclaimed survival game Rain World. This update, titled 'Watcher 1.5,' brings a wealth of new content and features to the game, enhancing both solo and co-op gameplay experiences.

Set in a post-apocalyptic world where players embody a nomadic slugcat, Rain World challenges you to navigate a treacherous ecosystem as both predator and prey. The update adds Arena mode support for The Watcher campaign, introducing new unlockables that reward strategic play and creativity. Additionally, Jolly Co-op is now retroactively supported for The Watcher campaign and all five More Slugcats campaigns, allowing players to team up in new ways across existing content.

The 'Watcher 1.5' update expands Rain World's already rich environment with several new regions, creatures, items, and endings. These additions offer fresh challenges and opportunities for exploration, ensuring that both newcomers and seasoned players will find plenty to discover.

For more details about the update, including specific changes and new features, please visit the official Steam announcement page: https://steamcommunity.com/games/312520/announcements/detail/514095596535023791.

Rain World is available now on Steam, with the 'Watcher 1.5' update set to launch on September 25th, 2025.