It was announced that a television anime adaptation of SIU’s Tower of God (Kami no Tou) manga has been green-lit! The adaptation is actually of a Korean manhwa. As someone who has previously read this manga years ago, I can say that you should NOT sleep on this anime!
MyAnimeList.net describes the manhwa as follows:
Tower of God centers around a boy called Twenty-Fifth Bam, who has spent most of his life trapped beneath a vast and mysterious Tower, with only his close friend, Rachel, to keep him company. When Rachel enters the Tower, Bam manages to open the door into it as well, and faces challenges at each floor of this tower as he tries to find his closest companion.
So far, an official website has opened for the anime and a release date of Spring 2020 was given, meaning that we should see it in the April anime lineup. As of now, there is no information on episode count nor is there a trailer for it.
You can check out the official website here: https://tog-anime.com/