Unlocking secrets in Vampire Survivors Tides of the Foscari expansion requires completing specific character-bound objectives across tricky stages. One of the most critical progression milestones involves choosing Maruto Cuts to break the red crystal known as the Seal of the Abyss. Successfully shattering this seal grants access to powerful new content and unlocks Luminaire Foscari as a playable character.
Preparing Maruto Cuts for the Journey
Before attempting to shatter the red crystal, players must ensure Maruto Cuts is selected and properly equipped for survival. You will need to bring Maruto into the Abyss Foscari stage and focus heavily on upgrading his signature weapon. Maxing out Eskizzibur along with fully upgrading Armor allows you to evolve the weapon into Legionnaire.
Having Legionnaire equipped makes reaching the crystal significantly safer by clearing dense enemy hordes. The passive health recovery and massive defensive capabilities from your armor ensure Maruto can withstand aggressive late-stage spawns. Preparing your build beforehand prevents getting overwhelmed before even reaching the objective location.
Navigating to the Red Crystal Location
Locating the Seal of the Abyss in Abyss Foscari requires following a specific path through the map corridors. From the starting point, travel south until you hit the southern barrier wall. Next, head directly west until you reach the wall, then trek north to locate the glowing red crystal surrounded by enemies.
The red seal will appear clearly once you approach the designated area on your map. Players should keep moving continuously to keep surrounding monsters from blocking the exact location. Maintaining high movement speed makes navigating these narrow underground passageways much easier.
Shattering the Seal and Unlocking Rewards
Once you stand next to the red crystal with Legionnaire ready, continuously strike the seal while fending off incoming waves. The crystal takes sustained damage before eventually shattering and triggering the unlock sequence. You can review additional details and quest tracking options inside the game menu.
Breaking this seal permanently destroys the red barrier and immediately unlocks Luminaire Foscari for purchase. You do not need to repeat this process on future runs with Maruto. Players can safely end their run after the unlock triggers and enjoy their new character.
