Searching for a "free full version" on PC often leads to a mix of legitimate mobile-to-PC ports and paid desktop versions:
The dedicated PC version of Death Park is sold on Steam for approximately $5.99 (roughly ₹328–₹500 depending on regional pricing). This version is optimized for desktop hardware and typically offers a more stable, ad-free experience. death-park-pc-game-free-download-full-version
A proper look into shows that it is a legitimate survival horror game, though its "free" status depends entirely on which platform you use to play it on PC. Platform and Pricing Breakdown Searching for a "free full version" on PC