The Utopia Add-on for Stellaris has 12 achievements.
Construct a complete Dyson Sphere
Construct a complete Ring World
Construct a complete Sentry Array
Construct a complete Science Nexus
Breach the Shroud
Evolve into perfect, immortal machines
Genetically modify a species to possess traits worth 7 points
Own a Habitat station in a Black Hole system
As an Egalitarian empire, have at least 500 Pops living under Utopian living conditions in your Empire
Keep at least 5 different species as livestock in your Empire
Have at least 4 fully operational Megastructures within your borders (Habitats, Ring Worlds and Gateways do not count)
Be a biological Hive Mind with at least 1000 drone Pops