This is 64 bit country.
In a post on the official Steam news page today, Vindictus developer DevCat declared that 64-bit operating systems are based and OS-pilled, and 32-bit operating systems are cringe. As a result the Vindictus client will be ending its support for said operating systems.
The move is expected to come after maintenance on July 4 when Vindictus declares freedom from old software. Players on 64-bit operating systems will need to do absolutely nothing to continue playing. Those on pre-Windows 10 systems will need to upgrade if they expect to continue seeing the very well-endowed women fight a bunch of creatures.
Source: Steam