Whether you're gaming on a PC or Mac, 1100AD promises to take you on a medieval 3d adventure without any installation necessary. Perhaps best of all, to play 1100AD you'll only need your browser. Medieval game 1100AD also has many features that make it different from a normal role-playing game and catapults (or should we say “trebuchets”?) this free online game into the realm of massive multiplayer online role playing games (MMORPG). You'll be able to wage war with real life competition; click “play now” to start your kingdom and building your army.