I use the free version of the security software called Online Armor (Homepage is http://www.tallemu.com/). This serves as a firewall and prevents programs from performing potentially malicious and/or harmful activity without my consent.
It detected nexuiz.exe as a keylogger when I ran it. (I installed Online Armor a few days ago, I didn't run Nexuiz at all after that until today.)
I told Online Armor to ignore the detection, and I marked nexuiz.exe as a trusted program.
Does Nexuiz have any keylogger-like behavior?