Endless Space 2 achievements

Use Privateers to secretly attack a fleet or a system belonging to a member of your Alliance

Use a Behemoth to reassemble all the planets in a system destroyed by an Obliterator or Core cracker

Have one of your planets be empty after using the "Raid" action

As the Riftborn, use a Fold Singularity to keep a fleet moving after warping through a Wormhole

Win as the Umbral choir

Destroy 3 enemy fleets of at least 4 CP with the same invisible fleet

Assimilate the Sisters of Mercy minor faction by invading their system

As the Cravers, fully deplete all the planets of 3 systems you captured from your opponents

As the Unfallen, assimilate the Eyder minor civilization into your empire

Buy 5 Pirate Marks in a single game

As the Vaulters, colonize Auriga and assign OPBOT as its System Governor

As Horatio, invade the home system of another Horatio player