Rephaim

Rephaim is the fourth planet in the Roah system. It is the homeworld of the Tokarthi, an offshoot of the ancient Aeliph species that evolved on the planet after they had woken up from billions of years of stasis.

Physical characteristics

Rephaim is an artificial planet though it does not appear as such from orbit. The planet's interior is comparable in its construction design to Domum Regimen, having once served as a megastructure computing node for Na'zrah. When the planet was attacked by a rogue group of Na'zratal, the environmental control systems failed which forced the Aeliph to either flee or to go into hiding deep within the planet.

On the surface, however, after billions of years of asteroid strikes and the introduction of material from other solar systems, organic life evolved naturally. As such, when the Tokarthi precursors woke from stasis, instead of a landscape of skyscrapers and metal, they found vibrant jungles.

Biosphere

Life on Rephaim has adapted to the passive frequencies and noise emanating from Rephaim's deeper computer systems. The flora, for example, has evolved naturally occuring radio receivers and migratory flying life uses the patterns to find their next nesting grounds.

One of the most striking plant lifes are giant trees that grew from the ancient skyscrapers on the planet's surface. Their branches extend out with single enormous leaves which essentially funciton as solar panels.