The Revelations Add-on for Age of Wonders: Planetfall has 9 achievements worth 225 gamerscore.
Complete 10 Anomalous Sites in a single Scenario.
Recruit an Eater of the Dead from the Forgotten faction
Collect a total of 500 Essence Charges
Win a game of interdimensional poker
Complete 40 Anomalous Sites
Refuse Valer-E's proposal
Win a game using the Heritor Dynasty Doomsday Weapon
Side with Xito Rhemenses at the end of the Awakenings campaign
Side with Hatyl Es'Ran at the end of the Awakenings campaign