http://www.pcgamer.com/the-elder-scrolls-online-kicks-off-a-free-weekend-starting-tomorrow/

ZeniMax is making its Tamrielic MMO The Elder Scrolls Online free to try this weekend. Beginning tomorrow (which, I know, is not the weekend, but roll with me here) and until December 6, the game will be free to download and play, and all new accounts will be given 500 crowns for use in the in-game store. 

Over the same period of time, players will be able to take part in an in-game dungeon event that will award "Mysterious Reward Boxes" for completing a random dungeon. The prize boxes will contain items including experience scrolls, pets, mounts, costumes, and "the jackpot," a pack of 20 homes or 20 mounts. Completing the dungeons will also earn you additional entries in the 10 Million Stories sweepstakes, which features a grand prize of a trip for two to PAX East in 2018, every in-game collectible in the TESO store, and the opportunity to become an NPC in the game.