Here are the ten top selling titles on Steam for the week as reported by Valve:
1. Batman: Arkham Origins
2. The Stanley Parable
3. NARUTO SHIPPUDEN Ultimate Ninja STORM 3 FULL BURST
4. Football Manager 2014
5. Saints Row IV
6. Call of Duty: Ghosts
7. How to Survive
8. Space Engineers
9. PAYDAY 2
10. Mass Effect Collection