In Khronos, you don't get just one board, but three! One for each of three successive time periods you'll be able send your adventurers to in order to expand your realms geographically and through time. Starting with the Middle Ages, you'll use cards to build up domains with military, civil and religious buildings. And actually some of these buildings, relatively to their size, will "ripple" through time, which means that they will persist in time and thus appear in subsequent time periods (Renaissance and Modern times) as operational buildings or as ruins needing some restoration.
Since you'll get revenue only for the periods in which one of your adventurer is present on the 2 revenue turns, you'll need to be cautious to manage your domains to be ready for these revenue turns, and to still be able to send an adventurer through time on the right board! Depending on the board, domains will be controlled by the most prestigious military building, the most prestigious religious building or by a majority of controlled civil buildings, so you'll need to try to develop all three types of buildings to get the most revenue out of all periods. Since you can upgrade, downsize and demolish buildings, connect or divide domains, this will create many situations and opportunities to take advantage of. And some surprises too! For example a temporal paradox can destroy one of your buildings if another building created in a previous period ripples (by chance or intent) exactly at the same location!
So, will you be a master of time?
For Khronos, our thanks go to the publisher Matagot for allowing us to create this adaptation on Board Game Arena, and to the developer Elena Laskavaia (Victoria_La) who implemented once more a very complex game for the board game community to enjoy online! Kudos!