The "NSP" and "DLC" markers in digital listings typically refer to the inclusion of all post-launch single-player expansions:
for the Nintendo Switch is a comprehensive remastered compilation that bundles the definitive adventures of the franchise's most iconic protagonist, Ezio Auditore da Firenze.
This version is optimized for the portable console with several hardware-specific enhancements: Go to product viewer dialog for this item. Assassin’s Creed The Ezio Collection - Nintendo Switch
Originally released in 2016 for other platforms and ported to the Switch in 2022, this collection is notable for its massive scope, including three full games, all single-player downloadable content (DLC), and two short films.