If you check your progress/completed games and the game is not showing up there, does that mean you can do that task and get gems?
If not, it's very hard to remember what you did a long time ago. I've completed so many casino type games in the past, and I don't keep a journal to be certain about which I've done. I just check my progress bar/completed games and if I don't see it on there I assume I can download the game and get gems for doing it. Is that not correct? Do I really need to start keeping a journal or something?