Before attempting this, ensure your game's main executable ( MK10.exe ) is a 64-bit version. Placing a mismatched DLL file in the system directories ( C:\Windows\System32 or C:\Windows\SysWOW64 ) can cause 0xc000007b errors and system instability, so you should never put this DLL there.
Press Windows Key + R , type C:\Program Files (x86)\Steam (or your custom Steam path), and hit Enter.
When Mortal Kombat X launches, it looks for this file in its installation folder. If the file is corrupted, deleted, or blocked, the game will refuse to start. Why is the DLL File Missing?
Are you playing a or a physical disc copy? Which antivirus software is currently active on your PC? Have you recently updated your operating system ? steam-api64r.dll missing mortal kombat x
This is the safest, most reliable, and recommended first step for any PC gamer. This process uses Steam's own tool to check your game's files against the official copies on Steam's servers. It will automatically find any missing or corrupted files and replace them.
Wait for the process to complete. Steam will detect the missing steam-api64r.dll file and automatically download a fresh copy. Method 2: Check Your Antivirus Quarantine History
Add the Mortal Kombat X installation folder to your antivirus to prevent it from happening again. Method 2: Verify Integrity of Game Files on Steam Before attempting this, ensure your game's main executable
The file is a dynamic link library file used by Mortal Kombat X. It allows the game to interact with the Steam client API. This connection handles critical features like player achievements, cloud saves, multiplayer matchmaking, and digital rights management (DRM) verification.
Always use the method via Steam to get the official, safe version of the file.
This error can be resolved with the right approach. Start with the safest methods and work your way down. By systematically working through these steps—from verifying game files to adjusting your antivirus settings—you have an excellent chance of getting Mortal Kombat X running again. Good luck, and enjoy the fight! When Mortal Kombat X launches, it looks for
Rarely, this can be an issue with the underlying Direct X drivers rather than the Steam API.
DLL errors often stem from missing system dependencies that the game relies on to run its own code. Download and install the .
Steam can automatically detect and replace missing files. This should be your first step. Open and go to your Library . Right-click on Mortal Kombat X and select Properties . Click on the Installed Files tab.
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This is the most common cause. Because the DLL manages security and licensing checks, Windows Defender or third-party antivirus programs (like Avast, AVG, or McAfee) often misidentify it as a threat and quarantine it.