'The Game' Author Neil Strauss -- My Single Life Is Dead!

The guy who gave the world "The Game" -- the famous guide to picking up chicks no matter how ugly you are -- is getting married, but not before he has a funeral ... to bury his freedom.

Neil Strauss is throwing the morbid celebration at the famous Hollywood Forever Cemetery --and calling it "Death of a Ladies' Man." He even bought a tombstone and funeral plot.

If you forgot what "The Game" is -- Neil, using his alter-ego "Style", shared his knowledge of how to get laid using all sorts of stupid methods ... peacocking, "negging", IOI's (indicators of interest), magic tricks. Remember now?

Neil says he's laying "Style" to rest at the bachelor party/funeral on August 25 -- before tying the knot with fiancee Ingrid De La O on August 31 in Malibu.

R.I.P. Style. You'll be missed ... said no woman.