It was released on October 21, 2008 in North America, October 23, 2008 in Australia, and October 24, 2008 in Europe. It was made available on Steam on October 22, 2008.Crytek, the developers of the original game, were not involved in the development of Far Cry 2. Ubisoft has marketed Far Cry 2 as the true sequel to Far Cry, however the sequel has very few noticeable similarities to the original game. Far Cry 2 was met with positive reception upon its release, with critics praising the game's setting, open-ended gameplay, visuals and AI, while criticism was directed at glitches, design choices and the writing. Players are able to ally with one or multiple factions, and to progress through the game world and missions as they see fit, resulting in a nonlinear style of gameplay commonly referred to as sandbox mode that allows the story to progress at their speed and in the order they choose. Players can use a range of vehicles, including cars, trucks, boats and hang gliders, to travel within the 50 km2 gameplay area. The health bar represents the health of the protagonist that is divided into five segments, each of which automatically refills if it is not depleted and the player finds cover for a few seconds. The player has access to a large arsenal of real world weapons, including machine pistols, battle rifles, shotguns, sniper rifles, rocket launchers, handguns, and light machine guns.