The 1997 FPS Shadow Warrior is now free to play for an unknown limited time. If you’re in the mood for some vintage late ’90s FPS action, this is a great way to experience it without spending any money, and you can get a chuckle or two out of the Steam page by arranging the text around a bit. Strap on your…Wang. Turn out the lights…experience total…immersion. Also, you can kill a bunch of enemies and look at some fairly nice reflections. Those effects have held up rather nicely, while the Doom-esque enemies make the game seem older than it is.