If you have legally dumped your own Chronos: Before the Ashes cartridge or eShop license to create an NSP, here is how to install the backup via a PC tool (like NS-USBloader or Tinfoil):
In your youth (the 20s and 30s), your character is physically nimble, making strength and agility builds highly effective. However, as you reach your 50s and 60s, your physical prowess wanes. To compensate, your affinity for magic and arcane wisdom increases. This "death as progression" loop forces players to adapt their playstyle over time, evolving from a raw brawler into a seasoned mage. Combat and Level Design Chronos- Before the Ashes Switch NSP
Chronos: Before the Ashes – The Definitive Guide for Nintendo Switch If you have legally dumped your own Chronos: