Vampire Survivors has quite a few secret characters that are not immediately unlockable and are hidden behind secret achievements you must obtain to be able to purchase them. Here’s the list of all Secret Characters in Vampire Survivors.
How to Unlock All Vampire Survivors Secret Characters
Vampire Survivors has several unlockable characters, many of which will pop up on the character select screen with their unlock conditions stated for you. But in addition to the silhouetted characters shown to you, Vampire Survivors includes another 18 secret characters it never tells you about. Here are all of Vampire Survivors secret characters and how to unlock them.