Steam Exploration Sale Day 3: 'GTA V,' 'Call Of Duty,' 'Assassin's Creed,' 'The Witcher' And More Steam is offering big discount on many video game titles as part of its Exploration Sale. Popular games such as 'GTA V,' 'Call Of Duty,' 'Assassin's Creed' and more are available at discounted rates. by Sumit Passary