Quake 3 is currently free-to-keep on the Bethesda launcher, but only if you log in before the promotion expires. That's in roughly three days: it'll expire on August 20 at 9am PT, 12pm ET, 5pm BST and August 21 at 2am AEST. The Quake giveaways come in the wake of QuakeCon At Home, where Bethesda promised it would give away Quake 2 and Quake 3 if a charity fundraising milestone was reached. The goal was $30,000, and that was met and exceeded by $686 bucks.