Megalox Beta was a planet that housed a prison known as Megalox which Poe Dameron and Black Squadron visited during their search for Lor San Tekka. Due to its enormous size and high density, the planet generated a gravitational pull ten times standard. Outside an artificial standard grav-field dome, anyone walking on the surface of Megalox would be instantly crushed under ten times their own weight.
- Poe Dameron 4: Lockdown, Part I (First appearance)
- Poe Dameron 5: Lockdown, Part II
- Poe Dameron 6: Lockdown, Part III
- Poe Dameron 8: The Gathering Storm, Part I (Appears in flashback(s))
- Poe Dameron 10: The Gathering Storm, Part III (Mentioned only)
- Poe Dameron 11: The Gathering Storm, Part IV (Appears in flashback(s))