This is a collection of every single DSiWare title that was released in the US. They are all in .cia format and will, therefore, need to be installed via custom firmware onto a modded 3DS. I am not the creator of this; I came across it a while back on a guy's Google Drive. However, I felt like sharing it as it is a nice collection. Unfortunately, DSiWare is installed to the internal NAND and not the SD card, so you can only have so many installed at a time.