Photos published by North Korea’s state-run outlet Arirang-Meari on Friday showed new war game applications for mobile phones, two of which feature weapons known to have recently been developed by the DPRK.

The three games – “Confrontation war (대결전),” “Guardian (수호자),” and “Goguryeo battlefield (고구려전장)  – are gaining popularity among young people and workers, according to state media.

“Confrontation war,” which was designed by the Advanced Technology Research Institute, allows users to “practice the law of victory in a virtual world in which battlefields are reproduced as they are.”

Playing the underwater warfare game, users can use “depth bombs, nuclear depth