Vampire Survivors - SuperWeapon Update Method

At least ８-level weapon skill and 1-level passive skill. Then you get a chance to upgrade Superweapon from chest.

How to Upgrade Vampire Survivors DLC Weapons - The Escapist

All Weapon Evolutions in Vampire Survivors Among Us DLC

Vampire Survivors drops surprise teaser for new free update

Vampire Survivors' first DLC offers some enjoyable (but diminishing) returns

All the Weapons and their Evolutions from Vampire Survivors - Vampire Survivors

Vampire Survivors: How To Evolve Weapons - GameSpot

Vampire Survivors: Arcana Card Guide

Wario64 on X: Vampire Survivors: Emergency Meeting DLC details / X

Steam Community :: Guide :: [24th May]SuperWeapon upgrade method

Vampire Survivors: Endless fun!- The New Indian Express