If you're an adventure games fan you probably already own at least two copies of each Myst game - after all it was the best selling PC game for a decade! But if you were waiting for an even better deal than grabbing Myst Masterpiece, Riven and The Manhole for $5.99 each, then we have an offer for you. This weekend we're giving you a 25% discount on all three games from Cyan Inc. The promotion ends on Monday, January 25 at 11:59 p.m. EDT. It's not a bundle promotion, so you'll receive the 25% discount if you buy one, two or all three titles.