Also for mine, always says it cannot be installed, i have an android 8.0.0, but still cannot be installed. Can you fix this? I really wanna play this.
Is it because your phone block it? Can you check the setting? Or maybe the game file is too big for your phone?
I know it's more fun to play on phone but if you can't download it, how about PC or Mac? Sorry for cannot help more. I use the build from a game engine. I'm clueless when it come to complicated programming stuff. You can send me your email address if you want a web version. But it is laggy and slow. (The web build from that engine is in beta test)
Have you try both 2 Android version? https://www.patreon.com/vivigame Maybe 1 will work. I always thought those 2 are the same. Maybe this is the reason. I'll update the 86_64 version soon. Please reply me if it works