The Steam Monster Summer Sale is here! For the next eleven days, take advantage of huge savings throughout our store on thousands of games. Check back every 12 hours to see new Daily Deals. You can even help unlock additional discounts by playing our Monster Summer Game. More than four hundred products will be featured as Daily Deals throughout the sale, with new deals popping up every 12 hours. Today's Deals include: Grand Theft Auto V up to 30% off XCOM Franchise up to 80% off X-Plane 10 Global 50% off Next Car Game: Wreckfest 50% off Hotline Miami 2: Wrong Number 33% off Farming Simulator 15 33% off Homeworld Remastered Collection 60% off Don't Starve 75% off Metro Franchise up to 80% off NARUTO SHIPPUDEN: Ultimate Ninja STORM Revolution 66% off The Binding of Isaac: Rebirth 50% off Sniper Elite Franchise up to 75% off Darkest Dungeon 25% off Valkyria Chronicles 75% off Tales from the Borderlands 50% off Along with the sale is the Monster Summer Game. Join a game and fight the enemy monsters as you help your team level up, unlock new abilities, and achieve community milestones. Plus, get Summer Sale Trading Cards just for playing. With your help, players of the Monster Game can work together to unlock special discounts on select games. Each milestone reached unlocks a new discount on a mystery game, available to everyone on Steam at 10am Pacific time the following day. New milestones each day through June 18. The Steam Monster Summer Sale will run from now until 10 AM Pacific, June 22nd. Complete information can be found here.