Check the game's license if it allows distribution.
Ah jes,So if a game allows distribution then i could add it to my website right?.Ok here is an example off such a licence.
[quote:2byg9q0i]Spelunky, which includes the executable, sound files, and this readme, is
freeware. This license allows you to distribute Spelunky freely, so long
as you distribute it unmodified and whole.
This license prohibits you from selling or otherwise profiting from Spelunky,
any part of Spelunky, including its source code, or any custom levels made
with Spelunky's built-in level editor.
So this means that i may distribute this game on my website ,As long as i don't profit from it(ask a fee to download the game).Then i should have no trouble's at all seeing that everything on my site is free anyway.