Steam's summer sale? If so, and if you're in the market for a PvP-centric fantasy sandbox MMO, check out Darkfall.
Aventurine's title is half-price until July 22nd, so instead of 40 bucks you can grab the game client for $19.97. Keep in mind that Darkfall is a subscription title, so you'll need to chip in $14.95 a month to continue playing after the first 30 days.
[Thanks everyone who tipped us!]