The 5 Bathymetric Oceanic Zones of Krillion
Krillion’s environment mirrors the real physical oceanography of planet Earth. As your cumulative depth grows, your telemetry interface physically transitions through all 5 bathymetric layers.
1. Sunlight Zone / Epipelagic (0m - 200m)
The uppermost layer of the world ocean. 100% of visible sunlight penetrates here, allowing photosynthesis to power massive phytoplankton blooms.
Creatures: Plankton, sardines, flying fish, coral reefs, sea turtles, dolphins.
Physics: Temperatures range from 20°C to 24°C; pressure ranges from 1 to 20 atmospheres.
2. Twilight Zone / Mesopelagic (200m - 1,000m)
Only faint, scattered blue wavelengths penetrate this dim realm. Photosynthesis is impossible, and animals rely on vertical diurnal migration and bioluminescence.
Creatures: Lanternfish, comb jellies, hatchetfish, glass squid, barreleye fish.
Physics: Temperatures drop steeply through the thermocline to 4°C; pressure reaches up to 100 atm.
3. Midnight Zone / Bathypelagic (1,000m - 4,000m)
Perpetual blackness. The only light produced originates from biochemical luciferin reactions in living organisms (photophores).
Creatures: Giant squid, sperm whales, anglerfish, gulper eels, vampire squid.
Physics: Constant temperature of 2°C to 4°C; pressure ranges from 100 to 400 atmospheres.
4. Abyssal Zone / Abyssopelagic (4,000m - 6,000m)
The vast, flat oceanic plains covering over 60% of Earth’s surface. Water is near-freezing and food falls only as sparse "marine snow".
Creatures: Dumbo octopus, tripod fish, abyssal sea cucumbers, giant isopods, faceless cusk-eels.
Physics: Freezing 1°C to 2°C; pressure exceeds 400 to 600 atmospheres.
5. Hadal Trenches / Hadopelagic (6,000m - 11,034m)
The deepest V-shaped tectonic chasms on Earth, located primarily in the western Pacific (Mariana, Tonga, Kermadec, and Philippine Trenches).
Creatures: Mariana snailfish (Pseudoliparis swirei), amphipods (Hirondellea gigas), giant single-celled xenophyophores.
Physics: Bone-crushing pressures exceeding 1,100 atmospheres (equivalent to the weight of an elephant balanced on a postage stamp).
Did You Know?
The Hadal zone was named after Hades, ancient Greek god of the underworld. Reaching 6,000m+ in Krillion awards you the Hadal Trench Explorer rank.
Test These Mechanics in Live Action
Launch an expedition right now. Pick rare answers, manage your speed bonuses, and see if you can penetrate the Hadal Trench.
Start Live Game Dive