Abandoning every ounce of common sense and any trace of doubt, you lunge onto a stage of harrowing landscapes and veiled abysses. Your new environment rejects you with lava pits and atmospheric hazards as legions of foes surround you, testing the gut reaction that brought you here in the first place.

Your new mantra: Fight or be finished.

As a thank you to fans for helping raise money for charity during QuakeCon, Bethesda is giving its 1999 competitive first-person shooter Quake III Arena away for free through its launcher, yours to keep if you pick up your copy over the next few days.