- is there a place I can buy basic game, music and sound for C2, so I can learn more about?
The download (free or paid) already comes with lots of basic templates to learn from.
See them in: Create: New
- is there any fees or logo/watermark from C2/SCIRRA?
nope
- When I create the game and export it on IOS or Android market, all belong to me, right?
- I can publish as many I want and upload myself anytime on the android market and Apple market with my own account or any website, right?
Of course.
SC2 is easier than others (GameMaker, Salad, Corona, Unity, etc.)
designer here too btw,