Defeating certain monsters earns you Pixel Blocks , which you can use to craft a "Dragon Quest Game Pak." This unlocks retro-styled items and building blocks inspired by the original NES game. Dragon Quest Builders 2 (Major DLC Packs)
If you're seeing "NSP" files or DLC listings, they likely refer to the sequel, which features several major expansion packs:
For a deeper look at the performance and exclusive features of the Switch version, check out these reviews and technical analyses: Dragon Quest Builders - Nintendo Switch Preview DISCUSSION YouTube · GameXplain Dragon Quest Builder Review for Nintendo Switch YouTube · GamesRadar
