OG mods are made for old version of R2, you have to use old version of the game to install them! You can go to steam, install DX11 (on beta section) to do that. This pack contains: Claire Ada Samus Lewd Suit, 7 add ons for Claire Ada Samus Lewd Suit and Standalone Hair. Head is a patch not standalone. Instructions for patches: You can mix and match patch A&B. Do not mix patches same letter. Always extract edition rar before use.