Play Black Mesa's whole single-player campaign with free aim.
Free hip-fire: your gun and crosshair move freely in a box in the middle of the screen. The view only turns when you push past the edge, and shots land where the crosshair is.
Black Mesa's own dynamic crosshairs: each weapon's crosshair follows the gun instead of sitting in the centre.
Centred aim: hold the right mouse button to pull the gun back to the centre with a light zoom for careful shots.
Alt-fire on the middle mouse button: each weapon's secondary fire moves off the right mouse button.
Walking follows the camera, not the gun.
The box size, keys and zoom can be changed in freeaim.ini in the mod's folder.
Single player. Works with your own copy of Black Mesa, alongside your Steam Workshop maps and mods.
Credits: designed, built and tested by Claude (Anthropic's AI), made in Melty.