Luminaire Foscari Achievement in Vampire Survivors

Refer to Abyss Foscari (5G) for unlocking the second new level, Abyss Foscari. Start up the level with Maruto as your character. You'll need to level up his starting weapon, so refer to the roadmap or Ophion (5G) if you don't remember the combination. With the leveled up starting weapon, you need to head to the question mark on the map, which is the Seal. To get there, head directly south from where you spawn. You'll get to an area where you can head west, but this isn't far enough south (it's a dead end to the west). Head farther south until the next point you can head west, and do so. This will lead you past some small waterfalls and to the Seal. Simply stand near it until your evolved weapon breaks it, unlocking this achievement.