The Tides of the Foscari Add-on for Vampire Survivors has 21 achievements worth 105 gamerscore.
Find and open the coffin in Lake Foscari.
Survive 15 minutes with Eleanor Uziron.
Get SpellStream to Level 6.
Get SpellStrike to Level 6.
Unite SpellString, SpellStream, and SpellStrike.
Survive 15 minutes with Maruto Cuts.
Evolve the Eskizzibur.
Survive 15 minutes with Keitha Muort.
Evolve the Flash Arrow.
With Keitha, break the Seal of the Lake.
With Maruto, break the Seal of the Abyss.
With Eleanor, break the Seal of the Banished.
Survive 15 minutes with Luminaire Foscari.
Evolve the Prismatic Missile.
Survive 15 minutes with Genevieve Gruyère.
Evolve the Shadow Servant.
Defeat 100000 enemies in a single run with Genevieve Gruyère.
Defeat a total of 6000 Sammies.
Defeat a total of 6000 Rotting Ghouls.
Defeat the Avatar of Gaea in Lake Foscari.
Defeat Je-Ne-Viv in Abyss Foscari.