Are there casual games online?

Yes. It’s a BIG market. Casual Games Association report states:

Revenues generated in casual games per year: $2.5 Billion
Growth rate of the casual games industry: 20%
Population playing casual games online per month: 200 Million
Male:Female ratio of members: 48.3: 51.7
Percentage females in paid games category: 74%

All internet statistics and Facts