"We collect information when you use our Services, including your Internet protocol ("IP") address and other identifiers that are assigned to your device... MAC address and other device identifiers, information from your device (including information from and about your hard drive and other storage devices, central processing unit, random access memory, video card, and peripheral hardware, software and applications installed on your device)."
Nexon collects granular hardware specs (CPU, RAM, video card, hard drive info) and a list of all software installed on your device, which goes well beyond what is needed for basic game functionality.