Huge thank you for the information! Can you please test the newest version if it works for you. Because unfortunately I believe I’ve discovered a new issue. The issue that was fixed in the latest release - the game was starting properly but crashing when trying to “Start New Game”. However, there was a second issue I’ve found on Android 5.0 that the game crashes as you describe it - starts, blinks black screen, and closes. I’ve talked with the Castle Engine developer and we hoped that it’s caused by old 32-bit devices. But if your, newer device may also be affected, then this issue will take a higher priority to fix. So, please test if the game works for you. Unfortunately if it doesn’t, I highly doubt that it can be fixed before the Tuesday (and as this bug is quite weird, hypothetically it can take longer time to find the solution).