Known as 911: First Responders in North America, released April 2006, the campaign has 20 brand new missions once again. In addition, there are several foreign missions in which the player must decide beforehand which units they will fly over. Between the more complex missions, the action is taking place in a fictional city, attending the everyday between mission operations. For the first time in the Emergency series, there is also a mode, where players can join online lobbies where the host decides either online free-play or missions to play. The previous graphics engine and controls are optimized compared to its predecessor. In Emergency 4 players also have the possibility not only to play campaign mode but also in a free-play mode to play and to achieve high scores.. September 8, 2016. Size. 35M. EMERGENCY HQ - free rescue strategy game. Enjoy the pool real swimming champions racing and water diving race flip 3d . Emergency HQ April 13, 2018 () Emergency is a series of rescue simulation video games by German developer Sixteen Tons as well as two new game-modes; free .