Slm blh ani weld bledek n7eb na3rf kifeh nesta9bel flous mel5arej 5tr brcha nes t9oul faha 7abs
Tax evasion is punishable by law, yes. You will need to show the receipts as proof of income.
Steam sends your revenue directly to your bank account.
If your income exceeds 5k TND a month especially you will have to register a company.
As for itchio, you can use Payoneer but I recommend you find somebody who has Payoneer and give them your itchio account to link to their Payoneer instead, since your account might get suspended due to inactivity aside from the yearly fee as well.