Yes it is that time of the year again, ModDB are hosting their annual Mod of the Year competition. It is currently in phase 1 (the nomination stage) of the award. During this phase every mod and indie game on the site has a small voting booth shown in its profile. For 15 days from December 20 to January 5th, you can nominate all of your favorite titles by clicking the "vote" button.
So if you liked the latest Steam release, please take the time to vote for Mare Nostrum.