Binary Domaim is a mod for Binary Domain aimed at improving mouse aiming
Currently can be (at least) used to play through the entire campaign, multiplayer is not tested

Install Visual C++ Redist x86[aka.ms]

Place files from https://github.com/RollinBarrel/binary-domaim/releases/latest/download/domaim.zip inside the game's folder (C:\Program Files\Steam\steamapps\common\Binary Domain\ by default)

If you've used an earlier version of the mod, delete your old dom.aim file inside the game's folder

To adjust mod's settings, you can use domaim.exe (you can also adjust the settings while the game is running)
Alternatively, when in game, use +/- or Num+/Num- to adjust your sensitivity, current sensitivity then will be shown in the HUD instead of the ammo counter for a brief period

Warning: this mod uses malware-like injection method, and can be treated as one by Anti-Virus software - either add the mod as an exception, or compile it from the source code
VirusTotal for v0.92 (current at the moment of guide's editing)[www.virustotal.com]

If you have any issues with the mod, please report it here: https://github.com/RollinBarrel/binary-domaim/issues
Or in this guide's comments