The TITAN training planet is where Gil's home is located and where many other followers live miles apart from each other for training. The planet is mostly isolated and full dense forest. The planet is also part of the large empire made by TITAN.
The terrain consists of forests and flatlands, with little variation. The forest and fauna that live on this planet consist of tree-like Green Eyed Monsters, which are commonly depicted crying for unknown reasons, and open fields of bugs and simple wildlife.
This planet was terraformed by TITAN, implying that it was different and full of a bigger variety of wildlife. Evidence of this can be seen when Ava views the ghosts of the many creatures trapped in limbo still on the planet.