Antivirus software (including Windows Defender) often incorrectly flags this file as a threat (e.g., Trojans or malware) and deletes or quarantines it.
If you own the game, consider using in the official Steam client instead of an emulator. Steam-api64r.dll File Download
Legitimate games that run on Steam use steam_api64.dll (notice the missing "r") to interface with Steam’s APIs for features like: why it fails
This guide will explain what this file does, why it fails, how to fix it securely , and how to prevent future issues. What is Steam-api64r.dll? how to fix it securely
If you encounter this error: