Ruin Haunter

The Ruin Haunters were a posthuman species created by the Qu from a colony of the Star People. Though they were reduced to the intelligence of chimpanzees or gorillas, the Qu didn't do much to avoid sapience to re-evolve.

Since the Ruin Haunters lived on a world were the Qu didn't destroy the ruins of the Star People civilisation, they learned from the ancient wisdom of their ancestors and used it to build an advanced civilisation that quickly rivalled that of the Star People.

Oftentimes, they only replicated Star People technology without fully understanding it. The political stress put on them by the quick development of their technology led to five world wars, two of them being thermonuclear exchanges.

The wars united the survivors and they were able to surpass the technological advances of the Star People. Soon they came to the conclusion that they were the sole heirs of the Star People, which later led to problems with other posthumans.

When their sun began to rapidly expand, they remade themselves into the Gravitals to escape their extinction.