GOG.com's summer sale format is something that almost single handily justifies tabbed web browsers. Whilst its range of flash deals have been worth keeping an eye on, this 24-hour Adrenaline Rush promotion will be offering free games over the next 19 hours.
If you're reading this now, you've already missed getting Omerta: City of Gangsters for free but there's still plenty of big discounts happening.
There's Hotline Miami, Carmageddon II, and Lily Looking Through for just $1.99 whilst more recent titles like Kentucky Route Zero and Broken Sword 5 are half price at $12.49. As always, just keep refreshing and checking back every 30 minutes to check what's new.