keeveek: It's a shame that original creators don't earn a single penny on old games they made, but that's how the law works.
But it is quite normal. I don't get any continual profit for certain piece of code that I made for my employer years ago I they might be still making money of, especially if I have changed work since.
In fact, if I make any great invention while I work here that could even theoretically be linked to my work or what I have learned here, my employer owns the invention, not me. That really sucks, that's why I try to make sure I don't invent anything really useful at my work.
I guess Interplay could have always tried to stay 100% independent, publishing their games as shareware etc. I could have also started my own company instead of becoming a corporate slave.