The most legitimate way to get the game for free is through Steam’s loyalty program.
: If you don't own the originals, the game is frequently available at a deep discount. Currently, retailers like Newegg and Loaded offer Steam keys for as low as $2.00 – $3.19 , down from the standard $9.99. What’s New in "Revolution"? Serious Sam Classics: Revolution Free Download ...
Unlike a simple port, Revolution adds significant content that wasn't in the original 2001 releases: Serious Sam Classics: Revolution v1.02 Free Download The most legitimate way to get the game
: It is completely free to any Steam user who already owns the original Serious Sam Classic: The First Encounter and Serious Sam Classic: The Second Encounter . Serious Sam Classics: Revolution Free Download ...