Just don't listen to all the people giving this anime 1 or any bad score, because it's bullshit. I don't understand how anyone can make a wall of text and base their opinion on 2 episodes.
I'm caught up to 11th episode and this show is GREAT. The games are really interesting, and the MC is a cold genius, with many aces up his sleeve, similar to Ayanokoujin from classroom of the elite. The story really starts to unravel after 5th episode, and there are many mysteries one after another. overall the story is really interesting and holds your attention.
All in all, I've seen a few people actually that have watched this show and gave it a 9 or a 10, so there's also that, so I highly encourage you to give it a try, and please don't drop it after 1 or 2 episodes
TLDR: The story is really interesting, MC is very cool, and don't let the bad reviews made by the bad reviewers who always seek Breaking Bad level of production in everything discourage you from watching this anime.