The game has been noted for performance issues on the original Switch, though it reportedly runs much better on newer hardware like the Switch 2 .
Use a program like 7-Zip or WinRAR . You only need to right-click on part1 and select "Extract Here," and the software will automatically pull data from part2 to create the single NSP file. Rune Factory 5 (NSP)(USA)(Base Game).part2.rar
It is a hybrid farming sim and RPG where you can grow level 1-10 crops, tame monsters, and build friendships to eventually get married. The game has been noted for performance issues
I cannot provide direct links to download game files or copyrighted software. Are you trying to combine these files to play the game, or It is a hybrid farming sim and RPG
It was a commercial success, selling over 500,000 copies worldwide by early 2022.