Immortal Realms: Vampire Wars
52 Achievements
GOG
A Night to Remember
Complete Act I of the Dracul Campaign
21.3%
How to unlock the A Night to Remember achievement in Immortal Realms: Vampire Wars - Definitive Guide
Select Act 1 for the Dracul Campaign from the main menu. Play through the entire map and eventually you will fight at a Human Keep. Proceed to the next point and you will finish the Act. This took me 3-4 hours (I explored the entire area).