Steam News announces a free weekend is underway for The Showdown Effect and that the multiplayer action game is on sale for 75% off. Here's the deal:

The Showdown Effect is a 2.5D multiplayer action game inspired by 80’s and 90’s action movies. Champions from throughout time fight to death for fun, for glory and for awesome.

The Showdown Effect recreates the outrageous combat found in classic action movies and then takes it one step further. Use weaponry pulled straight from the silver screen's unparalleled arsenal: shotguns, baseball bats, assault rifles, umbrellas, grenades, katanas, rocket launchers and more.

Additionally, The Showdown Effect has just launched new Steam Trading Cards!