ARMA (stylized as ARMA) is a series of first-person tactical military shooters originally developed for Microsoft Windows. Renowned for its high level of realism and simulation, the series combines large-scale military operations spanning expansive environments with intense close-quarters combat. The inaugural game was released in 2006, followed by subsequent entries up to 2013. Over time, ARMA titles have been made available on multiple platforms, including Windows, Linux, Android, and iOS.
The first installment, ARMA: Armed Assault—also known as ARMA: Combat Operations in the United States—debuted for Windows in November 2006 (Czech Republic/Germany), February 2007 (Europe), and May 2007 (U.S.), utilizing the Real Virtuality 2 engine. The latest major release, ARMA 3, is a standalone game for Windows that launched on September 12, 2013, powered by the advanced Real Virtuality 4 engine. It was initially accessible via Steam’s Early Access program starting March 5, 2013. Between late 2015 and early 2016, ARMA 3 was also released for Linux and macOS in earlier versions, with plans to synchronize these releases with the Windows version later.