The game has frequently been part of the Sony subscription catalog. If you have an active membership, you can download the full game at no extra cost.
Keep an eye on the Epic Games Store , which gives away free games weekly. While this specific title hasn't been featured yet, it is the only source for permanent, 100% free legal copies. Alternative Interpretations Terminator: Resistance Free Game Download Full
You may be searching for the playable demo to try the game before buying. Feature Highlight: "Infiltrator Mode" The game has frequently been part of the
While not strictly free, the game often sees deep discounts (up to 60-70% off) during seasonal sales, or it may appear in "Choice" bundles where the individual cost is negligible. While this specific title hasn't been featured yet,
You might be looking for "free" community-made DLC or mods that add features to your existing game download.