From this article, I have red about SAAS as one of the ideas in order to become rich. The question is this: is video game industry, especially mobile apps in Google Play, do more money or not? My dad (has some "experience" in economics and business concept) argued me that video game industry is weak and he told me either to focus on high raising salary on website or simply stick to the current stable company for survival where my current salary is around $20. I was about to plan on selling my game apps secretly while I'm in at the current company I'm working to gain extra bucks and stashed it secretly via PayPal.

Any ideas i order to gain more bucks on my sideline job? Any simple small. app projects will do but gatheirng more ideas to make effective marketing, from free apps with ads on it to free apps with purchasable power-ups.