This is the confusing part. After logging in, you are prompted to link a public Steam profile . You cannot browse the download sections until you enter a valid 64-bit Steam ID (find yours via steamid(dot)io ). This is their anti-leech measure.
The landing page is in Russian and features a Counter-Strike image .
, which allow games to run without a standard Steam connection. Customization : Scripts like CS.RIN.RU-Enhanced
: Click "Register." You must scroll through and "read" the terms; the "I agree" button is often time-gated
Even with a valid account, you may encounter login errors. Here is the troubleshooting guide.