Biolabs Basement
From Revival Ragnarok Online
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The Bio Laboratory Basement is a custom map filled with strong monsters designed to help players reach lv 255. The monsters here are Homunculus with appearances similar to mobs in Bio Labs F1-F4.
Proper gears are strongly recommended to survive in this map.
To get to this dungeon, warp to Biolabs B1 via Warpra.
Alternatively you can Warp to Biolabs F1
Walk towards co-ordinates: 192, 23 (use /where to find you co-ordinates). A dialogue will be prompted. Select the second option for all the dialogues to enter Biolabs B1 (Catacombs)
Note: There is no visible portal into Biolabs B1. The dialogue will be prompted when you walk into the wall at the bottom of the stairs.