1100AD: Domination is a medieval strategy browser game from Crassula PTE LTD, centered on building a city, developing an army, and competing with other players. Its gameplay combines city management and resource planning with exploration, quests, trade, and multiplayer interaction. Players can follow tutorials covering early city growth, army creation and command, commerce, valuable resources, journeys, and exploring quest locations. The site also features news, game guides, community forums, player statistics, screenshots, and customer support.

Regular updates introduce seasonal events, challenges, discounts, and special offers. Recent features include city optimization that consolidates decoration benefits into a Red Maple Tree, along with clearer rules for constructing and moving buildings between location types. Event announcements also describe contests, mini-games, festive offers, and purchase-based lotteries with in-game prizes. Available in multiple languages, 1100AD: Domination presents a continuing online world where players can expand their settlements, organize forces, manage resources, and engage in player-versus-player strategy.