A new game mechanic has been created in the game that, after the end of each battle, there will be a number of corpses left behind to give a sense of aftermath. These will stay until the player moves off the screen. This change is likely brought about by the community’s negative reaction to the disappearing corpses in the initial game play video. New monsters like the Dune Thresher had been revealed in the following weeks. Check out the Diablo 3 Bestiary for links to all the monster pages containing what we know as well as what we expect from the monsters revealed until now. Diablo 3 is still set in Sanctuary, but has a very wide variety of locations to explore. This agrees with the trend in each game.
Diablo 1 focused on only one town, while Diablo 2 allowed players to explore five different environments, but still had only one town from each locale. Diablo 3 seems to let the player explore almost the entirety of Sanctuary. At the moment, many locations, most of them as yet unseen in-game, have been released as either concept art or as official lore. The first and almost staple in every Diablo game is the town ofTristram, where Diablo 1 was set. It appears in a new avatar as New Tristram. Old Tristram still has the Cathedral which is an explorable dungeon in Act I.
The second and third ones seen were in the Diablo 3 cinematic trailer – Caldeum and Ureh. Caldeum is speculated to be present because of its importance in the game lore as the reason for the corruption in Aranoch. It may also be noted that Caldeum is the home of the, now supposedly deceased, author turned explorer, Abd al-Hazir. The Lost City of Ureh is seen in the cinematic trailer exactly as it is described in the Sin War novels. This has led to much speculation regarding the player meeting Zayl the Necromancer. It was confirmed to be Ureh in a concept art released by Blizzard after a few weeks of the release of the cinematic trailer. Other locations include the newly formed Arreat Crater which was where the Demonic Legion was supposed to start its invasion and the much speculated upon Xiansai, the home of the female Wizard.