Do these coins really bring any market value? I'm not very experienced in trading, but I have never seen any of them in top 30-40. Are any of them worth buying?

With a lot of cryptos continuing their drastic falls GLDR looks full of potential. The bear market is a hard place to be in general. I don't expect some sort of linear progression for the coin. Things grow in spurts and that is entirely normal.

tradingview is good to be updated, as well as fxstreet.com

It can sound very naïve, but a common sense when considering all the info you collected helps a lot. If you doubt like there's something that doesn't match, go ahead, ask the support team of the project to explain. See, if they understand what they are talking about, it shows a lot. I'm speaking from my own experience, good projects usually hire good staff.

 Can I download the game? Too slow for me now, loading for a few minutes.  Btw, nice project!