As promised, the playable demo of the PC version of Halo: Combat Evolved is now available from Microsoft Game Studios and IGN. The trial version of Gearbox's port of Bungie's shooter is a 131 MB download. Here's the deal: "In the trial version, gamers can experience both single and multiplayer gameplay, including limited vehicle combat. In the single player campaign level 'The Silent Cartographer', gamers assume the role of super-soldier Master Chief as he takes on the fierce alien faction known as the Covenant. In the multiplayer map 'Blood Gulch', up to 16 human opponents can light each other up with devastating weaponry and combat vehicles, including the new Rocket Warthog and the Banshee, either online or via LAN connection." Additional mirrors can now be found on 3D Downloads, 3D Gamers, Boomtown (registration required), Computer Games Online, FileFront, Filerush.com, FileShack.com (registration required), Gamer's Hell, GameSpot (registration required), GameTab, Pixelrage.ro, and Worthplaying.