"The Strogino CS portal in Garry's Mod is a custom server environment combining CS-style combat with GMod sandbox elements. For non‑Steam (No Steam) users, connecting is generally not supported on modern, secure builds. Older cracked clients may attempt connection via 'sv_lan 0' and manual IP entry, but most up‑to‑date servers enforce Steam authentication. Using a legitimate Steam copy is strongly recommended for stability, security, and access to all features."