Your antivirus almost certainly ate the file.
Once restored: Restart your PC and launch MKX. It should work immediately. steam-api64r.dll missing mortal kombat x
Ensure your game is up to date. Sometimes, patches fix issues with missing DLLs. Your antivirus almost certainly ate the file
Mortal Kombat X remains a fan-favorite for its brutal X-ray moves and intense roster, but like many PC ports, it is susceptible to runtime errors. One of the most frustrating and cryptic errors players encounter appears immediately after launching the game: For Avast/AVG:
"The program can't start because steam-api64r.dll is missing from your computer. Try reinstalling the program to fix this problem."
If you are seeing this popup in Windows 10 or 11, do not panic. This guide will explain exactly why this happens and provide seven proven methods to restore the file and get you back to performing Fatalities.