Hardcore Leveling Warrior has been seen in various adverts on Naver Webtoon, promoting other online games.
Summoners War (1st Advert)
Fallout Shelter Online
On June 6, 2020 an advert with Hardcore Leveling Warrior promoting the Fallout Shelter Online was shown at the end of Season 2 Episode 46. This was done to promote the Fallout Shelter Online game that had just been released in Korea on June 1, 2020.
World of Tanks - Asia
Hardcore Leveling Warrior webtoon was used to promote World of Tanks - Asia. The creator of Hardcore Leveling Warrior, Kim Sehoon, created a promotional webtoon, Hardcore Leveling Tank, which used Hardcore Leveling Warrior characters to promote the World of Tank - Asia. The promotional webtoon was 8 chapters long, beginning on August 30 2020 and concluded on October 18 2020. The advert below appeared after the Season 2 Episode 59 of the main Hardcore Leveling Warrior series.
An Advert for the Grabert doll was placed in Season 2 Episode 107 release on 14.08.21.
Summoners War (2nd Advert)
On the 25th of September 2021, a Naver Advert with Hardcore Leveling Warrior promoting Summoners War for the second time could be seen at the end of Season 2 Episode 114.