@SkypePro,

Lol, thanks for the support. I love your signature.

@Sir,

yeah, you're right. That's acceptable, I kinda meant fun daily type of challenges and sometimes weekly kind of challenges. Like the rest of you are talking about. Or maybe 500 TC a day per week. (If they were to complete the challenge). If you fail, I would say. You can't get another chance to get Toricredits. Just random challenges.
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@Mafia,

Getting achievements from challenges would be boring though. At least earning some item that's from your tier or something.