Method 1: Check Antivirus/Windows Defender Quarantine (Best Solution)
Unlike the official steam_api64.dll (used by legitimate Steam games), the file is almost exclusively associated with game cracks and emulators (like Goldberg or SSE – Smart Steam Emulator). Legitimate Steam games do not use the "r" variant. steamapi64rdll free fixed download work
This process can take a few minutes. Once it is complete, close the window and try launching your game again. In the vast majority of cases, this will resolve the error immediately. this will resolve the error immediately.