

adjective before the noun ......rule of thumb
I think with a good SEO, gamesfree.net domain can be made to rank on the first page from the keyword "free games". The difference of price (35K), introduced in SEO services can do easily this thing. You can remain with some money, for promoting other keywords, in the same site.
The other one is the incorrect way of saying it. Nonetheless, google will still consider them both for the keywords "free games" and "games free" when ranking the site on either domain.

