Normally I don't watch romance-less thriller kdramas, because they almost always suck. They are often full of immersion breaking sloppy writing and have many incredibly silly scenes. I feel that Squid Game certainly has them both. The characterization of the ML and of quite a few other contestants had some major problems. Personally I always hated it, when a random moron wins against smarter, more motivated opponents in a setting like this, however the ML's actions often felt arbitrary, beyond just an idiot's actions. Then again the whole thing is FULL of plotholes on a fundamental level, so the players frequently acting out of character is not even the biggest problem here, although Cho Sang Woo's death is just ridiculously stupid. All that he has sacrificed to win, for THAT to end up happening, well done! (evilME would have just thrown the knife for W45.000.000.000) Also what's the deal with the policeman's plotline, is there really a point beyond giving mental demons to his brother in season2?

The ending is trash of course, the minor cliffhanger is so bad that it's difficult to put into words. The final post-game twist is almost intelligence insulting too, especially considering how I went back and looked at what happened before frame by frame and it just doesn't make any sense. (pink solder raised the gun > the camera moved out of sight > boom > back in sight > man seemingly down) This is a preproduced drama and all the episodes were released on the same day, so the assumption that the audience would just forget about past details is just wrong.

The base ideas behind the show are pretty good, I guess the creator took Liar Game as the main inspiration & borrowed some ideas from Hunger Games and other Battle Royale titles. Mixing all that up with Korean children's games worked a lot better than I thought it possibly could have.
It's rare that a Korean TV show has one person as the director and the screenwriter. Hwang Dong Hyuk may have done a pretty bad job as a writer, but as a director I can only praise him. It's incredible how he succeeded to make the MOST BORING GAMES EVER exciting on TV. I found the tug of war game especially impressive. I have played tug of war many times & also I have seen tug of war on Running Man countless times, I have never thought rope pulling could be this exciting..

The best things about the show are of course the incredible sets, the symbology, the OST and the incredible cinematography.
I think the art director may have contributed more to this show's success than the director/screenwriter himself. I may have disliked many things about this show, but there were moments here and there, when I felt almost astonished at what I was seeing on screen. I do understand why Squid Game has become a worldwide sensation.

People talk about this show being the big hit it is, because of the human side of it, due to all the social interactions the contestants had with each other between the games. I'm not sure if I agree, most characters could not have been more two dimensional. Though certainly the actors did an excellent job showing a wide array of authentic emotions.

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Most English speaking characters were cringeworthy as usual. They could have done much better in that regard, considering it's a Netflix production. The silly dubbed accents were not even the worst part, but rather the whole VIP member commentary in the last 2 episodes could not have been more out of place.
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If we consider kdrama a genre, not just "korean made TV drama", then Squid Game is not a kdrama. It breaks several kdrama taboos, such as it has a Hollywood like explicit sex scene (not counting the gay foreigner thing), a lot of blood & most importantly the main characters are not astonishingly beautiful people. Personally I don't particularly mind, I'm just a little surprised by it all. I guess this is a real Netflix production with the western audiences in mind, perhaps Korea only embraced it, because it has become a huge worldwide sensation.