The safest and most reliable way to use HudSight for free is through its official demo version.
In the past, specific codes like free-4 were released through promotional videos to provide full access for a limited time (e.g., one month) while playing specific games like Rust. Hudsight Activation Code Free
You can often find it for as low as $4.19 during Steam sales. The safest and most reliable way to use