Running 32 bit apps on iOS 12

I have a problem with running a 32-bit app on iOS 12 that I bought in 2010. The app is from com2us and it is a great game that I enjoy playing. However, after I updated my iPhone 5s to iOS 12, the app stopped working and showed a pop-up message saying that I need to contact the developer. I did that, but they only told me to check out their new games, which are full of microtransactions and not fun at all. I don't want to play those games, I want to play the one I paid for. Is there any way to make the app work on iOS 12? I really appreciate any help or advice you can give me. I'm using this iPhone 5s temporarily until my new phone arrives, because my main phone broke. This is the only game I have on this phone and I don't want to lose it. Please help me solve this issue. Thank you.

[Edited by Moderator]