The theme of the day for social games is digging for treasure on Facebook.

We just spotted a new Facebook game in beta called Treasure Time! According to the fan page, you can “dig for gold, collect treasures, and play mini-games.” Be first to play Treasure Time! in beta now.

Meanwhile, the granddaddy of all Treasure mini-games on Facebook, Treasure Madness, has re-launched itself as Treasure Madness 2. Changes include a bigger screen, loading fixes, the return of Golden and Fruity maps, and the final installment of Sican Maps. It looks good but not sure if the cosmetic changes to the front-end and the server changes on the back-end really warrant calling it “Treasure Madness 2.” We’ll see when we review the game again.

If only you can earn real treasure by playing games on Facebook. . .