Before you fix the error, you need to understand the file.
Unlike the official steam_api64.dll (used by legitimate Steam games), the steamapi64r.dll 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
If a game is asking for this file, you are likely running a scene release or a repack (e.g., from FitGirl, DODI, or Codex/RUNE). This file acts as a bridge, tricking the game into thinking Steam is running when it isn't. Before you fix the error, you need to understand the file
Because steam_api64r.dll appears only in specific repacks, the correct method is not to download the file alone, but to reacquire it from a trusted game source or repair your existing installation. Unlike the official steam_api64
Here are the four proven methods that work 100% of the time.
The error appears for three specific reasons:
If you cannot restore the file, you need a new copy from the original source.