Steam Achievement Manager 6.4
Here you can lock/unlock achievements that are hard to get or if you just want to cheat.
Virus Scan: http://elementscanner.com//?RE=b0f6b5...
Q & A:
Q: How do I add games?
A: You don't, it will do that by its self
Q: Will I get banned?
A: If you used it how I did in the video, no.