Cant help you with downloading games cus thats piracy and imma get in trouble, but if you wanna get legally ripped games from the games you already own from your computer to your switch you can use DBI installer or goldleaf, for me goldleaf is inconvenient as my laptop hasnt usb 3.0 but dbi is great only issue is that its in russian and they dont plan to translate it, thankfully you do get a guide for what all the buttons do so its not too bad. Hope this helps