Right now, Government of my country is in a process of trying to track players/account holders of a one crypto game to ask for tax because of fast and good earning rate, and I think it's not possible.
Why do people only focus on the earnings in crypto and always forget that the money you earn, be it $ or
BTC or god knows what token when you're going to take those profits and use them in real life you will be easily discovered if the sum is a bit over the average earnings? You will have at one point to convert your coins to fiat, you will have to use a card, a bank account, and atm, you will buy stuff that can be tracked, if you go an buy a car and you're without a job how long do you think it will go to take before the IRS equivalent is on your case?
If we start from the hypothesis of a government being bent on tracking you then you can expect the worse, just pay your income tax and enjoy some sleep at night, tax evasion once caught without good lawyers will not be worth it.
The government can't exactly ban, or heck, touch the company themselves since there's no reason to. Even if they forced a reason, at most, they would ban access to the site, but can't really touch the company themselves.
Depends a lot on what government we're talking about...
A 40+ employees company in Vietnam is hardly something intouchable.
Plus there's no law backing them up to tax the income from those games, remember that US has done this to bitcoin and they've failed already.
When did this thing you're talking about happen?