Landing Site Delta is a moderately-sized room and the first room accessed in the Pirate Homeworld Leviathan Seed. Landing Site Delta has four Phazon-generating glands positioned in various areas around the room. Nine large parasitic fungi can be found around the room as well. A Leviathan Door, which leads to Core Access is located at the Northern-most part of the room atop a raised alcove. Samus must jump across a path of three seed platforms and use the Screw Attack in order to reach said door. These floating structures have dangling tentacles of Phazon beneath them, but their flat surfaces can be touched safely. The only completely sentient creatures found in this room are Scritters, all roaming the ground in what appears to be an aimless manner.
- Friend Voucher
- Samus must destroy all Scritters in the room to get this voucher. If she has not already done so in either the Bryyonian or Elysian Seeds, then this will be her last chance to collect it.
- Parasitic fungus
- "Parasitic fungus relies on the Seed for sustenance. It is saturated with Phazon, but not yet harmful."
- Seed platform
- "Semisentient organic structure. Phazon tentacles are harmful, but its top can be safely touched."
- "One of many glands that is capable of generating massive quantities of Phazon."