Rockstar Games Social Club is the DRM and launcher backbone. If its installation corrupts, RMN60 appears instantly.
Navigate to your game installation folder (e.g., Steam\steamapps\common\GrandTheftAutoIV\GTAIV ). how to fix gta 4 fatal error rmn60
If updates and reinstalls fail, you must force GTA IV to bypass its broken VRAM detection. Rockstar Games Social Club is the DRM and launcher backbone