Tom Clancy's Rainbow Six Siege is an online tactical shooter video game developed by Ubisoft Montreal and published by Ubisoft.It was released worldwide for Microsoft Windows, PlayStation 4, and Xbox One on December 1, 2015. The game puts heavy emphasis on environmental destruction and cooperation between players.. Siege warfare dominated in Western Europe for most of the 17th and 18th centuries. An entire campaign, or longer, could be used in a single siege (for example, Ostend in 1601–04; La Rochelle in 1627–28). This resulted in extremely prolonged conflicts.. Cityhotel Siegen offers pet-friendly accommodations in Siegen. Guests can enjoy the on-site bar. Free private parking is available on site. Rooms have a flat-screen TV. From the room with a view to the helpful attention of the staff and the excellent breakfast everything was extremely comfortable and nice!