While not strictly "free" (as they require a monthly fee), subscription services provide access to hundreds of full-version games:
The safest way to get free games is through official platforms. They frequently offer "Free to Play" titles or limited-time "Free to Keep" giveaways.
: Sites using generic "free download" strings frequently hide Trojans or ransomware in their .exe or .zip files.
: Renowned for giving away at least one high-quality "mystery" game every week that you can keep forever.
: A primary hub for indie developers to host free games, demos, and experimental projects.
: Many "full version" downloads are actually broken files or trial versions wrapped in ads. Online Gaming Risks & Game Security - Kaspersky
If you are looking for legitimate ways to find and download free full-version PC games, 1. Use Trusted Digital Storefronts