garys mod造句

I am looking into buying garys mod, but everyone says 10 is the way to go.
The only place so far to get it is steam, but steam only has garys mod 9 for download, where can I find and buy / download garys mod 10 without going to some shady site?
The only place so far to get it is steam, but steam only has garys mod 9 for download, where can I find and buy / download garys mod 10 without going to some shady site?
It's difficult to find garys mod in a sentence. 用garys mod造句挺难的