X — Steam-api64r.dll Missing Mortal Kombat

The steam-api64r.dll error looks technical, but it’s almost always a simple case of a missing file that Steam can replace for you. Don’t waste time searching for “DLL download” sites – use Steam’s built-in verification tool, and you’ll be back to performing Fatalities in minutes.

If you are playing the legitimate Steam version, Use the "Verify Integrity" tool in Steam and add an exception in your Anti-Virus. If you are playing a non-legitimate version, the error implies the "medicine" applied was removed by your Anti-Virus, in which case you must reapply it, but be aware of the security risks involved. steam-api64r.dll missing mortal kombat x

Restart your PC and launch MKX. It should work immediately. The steam-api64r