The player is able to choose different objectives and weaponry (such as UAVs, artillery, and air support) according to their play style. During the campaign, the player is placed in a variety of situations, from lone wolf infiltration missions to the commanding of large-scale armored operations. The single-player campaign has the player take control of U.S. The smaller island, Stratis, expands over an area of 20 square kilometres (7.7 sq mi). Altis is the largest official terrain in the ARMA series with ground area covering approximately 270 square kilometres (100 sq mi). The islands feature photo-realistic terrain and water environments. ĪRMA 3 mainly takes place in the mid-2030s, on the islands of Altis and Stratis in the Aegean Sea, and the South Pacific island of Tanoa, as well as the island of Malden and a landlocked terrain set in the historical region of Livonia. It was released for Microsoft Windows in September 2013, and later announced for macOS and Linux in August 2015. ARMA 3 is an open-world, realism-based, military tactical shooter video game developed and published by Bohemia Interactive exclusively through the Steam distribution platform.