A virus is a microscopic organism that can replicate only inside the cells of a host organism. Most viruses are so tiny they are only observable with at least a conventional optical microscope.
Recognized by the Guiness Book of World Records as the MMO with the longest play time per player, and easily the oldest game on this list (launching four years ahead of World of Warcraft, way back in 2001), Runescape deserves mention because it's one of the most updated and popular games of any kind on the planet.
Between years 1931-1939 Simo was an avid fox hunter. He got his sniper training at Utti in 1938, a year before the war. The Winter war started in November 30, 1939 and ended in March 13, 1940. It lasted 105 days. Simo was active 98 days (last seven days in a coma).