Developer InXile is taking a novel approach to promoting their new game Bard’s Tale IV: Barrows Deep. You can actually lower the price of the game by wishlisting it on steam. The game starts at 39.99, but if 300,000 people wishlist it, it’ll drop to 34.99. If 500,000 people wishlist it, it’ll drop to 29.99 and a DLC will be included for free.
Source: Game Spot