Familiar Ruins

After War Mode is initiated, the Purity will be struck with a deadly meteor destroying all playermade structures and NPCs in the area. Then, the purity will turn charred and desolate. Under the Familiar Ruins, there is a massive platforming section with many chests. The dead remains of slimes and NPCs (if any) will be unbreakable decorations on the ground. The water becomes lava.

Enemies

 * Undead Green Slime | 60 HP, 40 DMG, 0 DEF
 * Undead Blue Slime | 90 HP, 50 DMG, 3 DEF
 * Undead Purple Slime | 120 HP, 60 DMG, 6 DEF
 * Undead Red Slime | 150 HP, 70 DMG, 9 DEF
 * Undead Baby Slime | 60 HP, 30 DMG, 25 DEF (underground only)
 * Undead Yellow Slime | 180 HP, 80 DMG, 12 DEF
 * Undead Pinky | 500 HP, 160 DMG, 80 DEF (rare)
 * Undead Mother Slime | 260 HP, 110 DMG, 48 DEF (underground only)
 * Undead NPC | 250 HP, 100 DMG, 50 DEF (if any NPCs were killed by the meteor)

Bosses

 * Undead King Slime | 70000 HP, 150 DMG, 96 DEF

Trivia

 * The location is inspired and named after a map in Flood Escape 2 named Familiar Ruins. Both are charred and ruined versions of locations and are more hazardous than their original counterparts.