ARMA, stylized as ARMA, is a series of first-person tactical military shooters initially developed for Microsoft Windows. Renowned for its high level of realism and simulation, the series combines large-scale military operations spanning vast terrains with intense close-quarters combat. The franchise began with its debut release in 2006 and has continued to evolve through subsequent titles, the most recent being released in 2013. Over time, ARMA titles have expanded their availability, now also supporting Linux, Android, and iOS platforms.
The inaugural game, titled ARMA: Armed Assault—also known as ARMA: Combat Operations in the United States—launched for Windows in November 2006 in the Czech Republic and Germany, February 2007 across Europe, and May 2007 in the United States. It utilized the Real Virtuality 2 engine. The latest installment, ARMA 3, is a standalone title released for Windows on September 12, 2013, powered by the more advanced Real Virtuality 4 engine. The game was first made accessible to the public via Steam’s Early Access program on March 5, 2013. Between late 2015 and early 2016, ARMA 3 was also released in earlier versions for Linux and Mac, with plans to update those versions to match the main Windows release later.