if you don't like them then just don't play them

video games aren't a "need"

That's up to the developers/publishers to decide. You then have a choice to buy the game or not.

Do we really need this kind of games like Warzone again...?

I thought Warzone 2100 was quite good back then.

However, that doesn't actually matter -- I'm always in favor of letting companies do any game they want to do, and leaving it to customers such as myself to decide whether I want to buy it or not. That's what a "free market" is all about.

Is there a guarantee that I will buy it? Definitely not. I've played a lot of Warcraft II and Diablo II back then, but... I haven't bought anything Blizzard since. It would be same for Warzone -- it really depends on what they come up with. I don't drool over names.