A character slot refers to the allotment of potential characters an account can create. Every character created on an account occupies one character slot. For Guild Wars 2 on the PC, a GameFAQs Answers question titled "What is the purchase more with gems, but what's the most number of character slots you. GW2 gemstore is having a 24 sale on character slots, storage expander and some other items. Only available for the next 24 hrs. Captain's.