Hollow Knight Silksong: How Environmental Hazards Hollow Knight: Silksong redefines metroidvania combat and level design through Hornet’s acrobatic tools and environmental hazards. Since its 2025 release, Hollow Knight: Silksong has been celebrated as one of the most daring sequels in the modern metroidvania space. Team Cherry could have simply given players more of the original Hollow Knight, but instead the studio embraced radical change and growth.