Valve’s Steam platform has grown from a way to sell its own games to a massive digital distribution platform for virtually all PC games. With all that power in the market, Steam has been able to put together some really great sale and bundles — so great in fact that you’ve probably purchased many games you just never got around to playing. Now your poor impulse control can result in even more deals on games you don’t have time to play. Steam will soon offer discounts on bundles when you already own some of the games. Valve has explained the new system to developers, and it’s just starting to show up on the consumer side. The way it works now is that Steam treats bundles as monolithic purchases. You pay whatever the price is, and you get all the games it includes. If you already own one or two of them, you still pay the same price. You’re basically paying a few bucks for something you already have, which can erase the savings of the bundle deal. Some gamers simply won’t take advantage of bundles because they already have several of the items in it. With the new Steam bundles, buyers will basically receive credit for the titles they already own. So, let’s say there’s a giant $100 bundle of every game a publisher has made for the last few years. You own two or three of them, and if you buy the bundle, you’ll get credit toward the bundle to make it cheaper. Valve thinks that even in situations where “double paying” for games doesn’t make the entire bundle a bad deal, this approach will just feel more fair. That could potentially drive more sales of bundles. The new bundle is apparently live for the Headup Games Complete Bundle, which costs about $60 without any pre-purchasing discounts. The bundle itself is 10% off the price of all the individual games. If you already own some of the games, you’re credited a few bucks. The savings are not clearly broken down, but it looks like roughly the cost of the game minus the bundle discount. There’s probably also some rounding going on in there. Most of the bundles you see on Steam are still the old style, so don’t reach for your wallet just yet. We don’t know when the new version will be available to all developers, but hopefully before the next big sale event. That’s probably the summer sale in a couple months. I know I’ve held off purchasing some bundles I might otherwise have picked up because I already owned half the titles. The summer sale might be that much more tempting, so get ready to expand your collection of unplayed Steam games.