Imperia Online is a persistent, browser-based, massively multiplayer, online real-time strategy game developed by the Bulgarian software company Imperia Online Ltd. It was originally released on August 23, 2005.

Join millions of players online in this ultimate medieval strategy game - Imperia Online! Be the King of your Empire and rule the Realm! The time for war has come! Challenge your wits and strategic thinking as you immerse yourself in a MMO strategy game like no other!