Tower of God Wiki:Tower of God Extras

Because of the growing popularity of webtoons in South Korea, Naver has been experimenting with a new form of advertising known as Page Profit Share. PPS is a type of visual ad that uses a webtoon’s art and characters to promote a product. These co-branded ads are featured alongside or at the end of a webtoon episode.

Due to Tower of God's rising popularity, SIU have created several artworks showing notorious characters that ever appeared over the webtoon.

Parodies by other authors
https://m.comic.naver.com/webtoon/detail.nhn?titleId=631780&no=9&seq=