Khronos is a board game for two to five players designed by Ludovic Vialla and Arnaud Urbon.

By paying one coin, players can time travel between the different ages.

Players receive money based on the strength of their buildings in the various ages at the end of their fourth and seventh turns.

There are three kinds of buildings, each represented by a different colour: military (orange), religious (purple), and civil (blue).

The time travel aspect of the game comes into play in that larger buildings built in earlier ages "ripple" forward to the game boards in the future.