The Infernals Species Pack Add-on for Stellaris has 7 achievements.
Watch your Red Giant home star blow up
Win the game through the Hyperthermia Crisis Path
Terraform 100 stars to Red Giants (Before Galactic Firestorm victory)
Terraform 10 planets to Volcanic world (Before Galactic Firestorm victory)
Use 5 Blazing Scourge decisions on a Tomb World
Create a Volcanic Resort World
Create a Volcanic Holy World