This game is an official Sega product. It is a freeware fan-game originally built for Windows PC using GameMaker Studio. The developer has never released an official Android port.
Sonic.exe Round 1 remains a beloved piece of internet horror history, but it was never designed for Android. While many websites claim to offer the game as an APK, these are unofficial ports that carry high security risks. The safest ways to enjoy the game on Android involve emulation or remote play from a PC. Users should avoid downloading any “Sonic.exe Round 1 APK” from untrusted sources, as the risk of malware far outweighs the novelty of playing a short horror fan-game on a phone. For the most authentic and secure experience, stick to the original PC version or explore officially available horror games on the Google Play Store. This paper is for informational purposes only. The author does not endorse downloading copyrighted or unofficial game ports from unverified sources. Always scan APK files with antivirus software and verify developer credentials when possible. Sonic.exe Round 1 Download Android
Introduction