Yes, Nulls Brawl APK can be safe to download and install if you source it from a reliable and trusted website. However, since it’s a modified version of the game, it’s important to ensure the file is free from malware or viruses. Always verify the authenticity of the source before downloading. Additionally, keep in mind that using Nulls Brawl APK may violate the terms of service of the original game, so proceed with caution.