The classic version is available here, though you might need a community patch (like Pure Faction ) to fix modern resolution and multiplayer issues.
If you download the game, I highly recommend installing the community patch. It fixes bugs, adds widescreen support, and stabilizes the multiplayer, which is essential for a smooth experience on a modern PC. red-faction-free-download-pc-game-full-version
The Geo-Mod engine lets you create your own paths by tunneling through rock or collapsing structures on enemies. The classic version is available here, though you
This is often the best choice for older titles because they pre-patch the game to ensure it runs on modern hardware without extra tweaking. The classic version is available here
You play as Parker, a miner joining a revolution against the oppressive Ultor Corporation.