This is an old topic I made before Christmas last year about the holiday sales going on. Since all of those ended and more popped up as a New Years sale, just decided to keep this one up for now. I'll probably use this topic until the end of the month and then just let it die. As far as I know, these all end on the 16th-17th depending on your timezone. These are all North American sales! I won't include DLC this time around since this takes me forever to cover.
I'll update the rest later. These lists are too long and I started this an hour ago.
Nintendo & Select Titles
Sega/Atlus
Capcom
XSEED
Inti Creates
2K Games
Devolver Digital
WB Games
Ubisoft
Bandai Namco