There are various community mods available on sites like ModDB that improve textures and lighting to make the game look better on high-resolution monitors. A Note on Safety
Running on modern hardware (Windows 10/11) usually requires more than just a download. Because the game was released in 2007, you will likely need community-made patches to ensure it works correctly: Manhunt 2 Free Download
The game's engine can break if the FPS is too high. Fans often use tools like "SilentPatch" to stabilize the performance. There are various community mods available on sites