Do complicated Perl programs really exist?

Yes.

Maybe a strange thing but I am looking for complicated Perl programs and I cannot find them, don't care how much they cost a demo is also welcome. I want to test the interpreter.

Search harder. http://freshmeat.net/browse/176/ for example has loads of them.

But I couldn't find 1 normal simple game like pacman or something let alone very complicated programs. Now I am really doubting Perl as a language.

Search harder. Anyway, you seem to be under the impression that a complex program is one that has a complex interface and vice versa. That's not true even in general. Also, perl isn't really used much for games even though there are some.

Is this possible for Perl? Show me!

Do your own research.

When it is possible it should be there, if it isn't there it is not been proven that it is possible.

What are you talking about?

Cheers,
Joost.