- Biological Species - Naturally evolved lifeforms defined by organic biology and reproduction.
- Synthetic Species - Non-biological sentient beings created through artificial or technological means.
- Augmented Species - Biological species altered through cybernetic, genetic, or technological enhancement.
- Hybrid Species - Species formed through the combination of multiple biological or synthetic origins.
- Transcendent Species - Beings that have surpassed conventional physical or biological limitations.
- Energy-Based Species - Non-corporeal lifeforms composed primarily of energy rather than matter.
- Extinct Species - Species no longer living, known only through records, ruins, or historical impact.