Locations

Room of Swords (Season 1 Epilogue)
At the end of Season 1, the Room of Swords appears to be a dark, empty place inhabited only by Don (and later, Gyrus).

A small stream of water circles the central area, illuminated by an opening above (this is also where new voyagers will appear).

A large computer and screen are set up behind it. Don's gardens and living quarters are set up around it.

Medical Bay
The medical bay is mostly run by Nephthys. Here, she heals her patients and puts Heartbeet pills into containers.

Gyrus' Room
Gyrus’s room is self explanatory. Gyrus was trapped there by Don after being deemed a threat. It contains a trick drawer, which opens in response to Gyrus’s magic, and contained Don’s knife.

Kitchens
Olimedes is the most active person here. He uses this to craft objects and food, and he stores the replica Boss Swords here.

Desert Realm
This is the realm featured in Season 1. The enemies are a race of poly-eyed creatures whose strength increases as their number of eyes decreases; the Boss Monster of the realm is One and her wardens (minibosses) are Two and Three. The realm's Boss Sword is broken in two due to a rebellious plot between the wardens to overthrow One.

The realm appears to be modelled after real-world badlands; it contains arid desert-like landscapes, large rock structures and cliffs,  and lacks any visible vegetation. The only creature other than the poly-eyed that inhibits the realm appears to be a type of bird, though there are skeletons trapped in purple crystals all across the realm.

One's castle is the focal point of the realm. An imposing, blockish structure, it's only accessible by a narrow bridge and houses the boss and wardens.

Ice Realm
The realm appears to be based on tundras and glaciers; it's shown to have frozen bodies of water and flat-topped mountains.

Truth or Dare Realm
The truth or dare realm takes place inside an elaborate mansion or castle, possibly Victorian in decoration. It contains two hallways; one marked Truth and one marked Dare. In the Truth hallway, the floor is covered in tiles which will summon relics of the voyager's past to ask them questions.

Snake Realm
The snake realm appears to have buildings and pillars with snakes on them. This is the realm where Gyrus finds the arm in the ground. The Boss Monster is a snake woman that has snakes for hair, resembling Medusa.

Lava Realm
The lava realm appears to be on a volcano, and lava flows openly. Heat resistant gear is required. Sirens live in the lava, and enchant people with lust to walk into the lava and burn themselves. Dragons live here too, and are at home in the boiling lava. Serdtse, Gyrus’s ally, lives in this realm, floating on the lava streams.