"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 languag"

That's a pretty uninformed and ignorant statement. 'Games' are only one thing you can do with programming. Different languages have different strengths and weaknesses for various applications. People like doing games in C, because its a low level language compared to perl or python. When people make games in higher languages , and choose between perl and python, they'll often choose python as it has better libraries for imaging/gaming and is faster with numbers. but perl kicks python's ass at string manipulation.

Saying that you doubt Perl as a language is saying that you doubt donuts as food, because you don't like them for dinner, only for breakfast.