Steam's game bundle offers are some of the cheapest ways to expand you digital collection, but with so many sales you often find yourself in the position where you already own at least one game in a bundle – thus putting you off buying said bundle.
Things are changing, with Valve revealing to developers that users will now be offered a discount based on what games in the bundle they already own.
"With Steam Bundles, if a customer already [owns] some items in the Bundle, they will pay for and receive only the items not already in their account. This allows the best fans of your series or franchise to 'complete the set' and get a deal on the remaining items in the Bundle," Valve explained to developers.
Valve hasn't announced the change to consumers, but several bundles already take advantage of the new system, notably Valve's own Complete Pack.