Dunnigan tried to take tactical games into a new direction in 1973 with "KampfPanzer" and "Desert War", which featured simultaneous movement, expanding on an optional rule for PanzerBlitz. Unfortunately, the quest for greater realism was having a price in complexity and "bookkeeping", or recording of moves on paper. Nonetheless, other tactical games on a man to man level were released with simultaneous movement, with "Sniper!" being released by SPI in 1973, "Patrol!: Man to Man Combat in the 20th Century" and "Tank!: Armored Combat in the 20th Century" both in 1974. That same year, Avalon Hill released "Panzer Leader: The Game of Tactical Warfare on the Western Front 1944-45".