Steam is following up on its recent Thanksgiving sale with The Great Steam Treasure Hunt. This promotion runs from now until December 20th, just in time for the Holiday sale, which will hopefully return. Every two days Steam will reveal four new objectives to be completed. In order to win the grand prize, gamers will need to complete any ten of the objectives and log in on December 20th. The grand prize is 100 free games chosen by the winner, leading to more games than can be played. Additionally, for every two day cycle of objectives, Steam will be giving 20 users the top five games on their wishlist. For Team Fortress 2 players, there are also hats available at 5, 15, and 28 objectives completed. It also appears that the games associated with the objectives will be on sale each day. Todays objectives are found in R.U.S.E., Poker Night at the Inventory, and Chime. Keep up to date and discuss your progress in the forum thread.