Where to start in fundamental reverse engineering?

Question

reverse engineering

Is it possible to start with reverse games? Or better desktop/mobile apps?

Answer 1

There is a site called crackmes.one which has a lot of programs whose only purpose is to be hacked. Run them in a debugger (edb for example) and analyze. But here you need knowledge in assembler, but it's not difficult. I hope you will apply the acquired knowledge for creative purposes.

Answer 2

Better to start with engineering. Having no idea how the primary process occurs, it is very difficult to do the reverse