How to write games for mobile devices?

Question

Apple App Store

Suddenly I wanted to write my own game. There are two ideas - 2D and 3D. iOS is the priority, but Android, I think, would be foolish to refuse. There is no Mac, but if it presses, it will be possible to take a Mac Mini on Avito. The main question is what are simple games written on, and does it make sense to use Unity? Minor - do cross-platform frameworks greatly affect the performance of the final game?
Here are games similar to what you want to do.
2D:
https://youtu.be/rsf6Rpfw0Vg
3D:
https://youtu.be/NgSIFHQyD1E

Answer 1

Take Unity, for beginner developers it is now the friendliest engine with good documentation and a lot of tutorials. The performance is primarily affected by the curvature of the developer's hands, the engine itself does not give a tangible overhead, especially for 2D, and for 3D there is now a Lightweight Render Pipeline . Another thing is that earlier the unit had a problem with the build size for mobile phones, but now they have practically solved it, the engine takes only 12 megabytes.