The mobile rhythm game "Rhythm Hyve" is running online and offline events to celebrate ILLIT's encore concerts. "Rhythm Hyve," developed and serviced by Dream Age, will operate a game experience space at the venue in connection with ILLIT's encore concerts at Inspire Arena in Incheon on the 17th and 18th. Visitors who try the game on site will receive a coupon for an "ILLIT performance card set," and those who beat the on-site game master (GM) at rock-paper-scissors will randomly receive one of the members' limited trading portrait cards. Visitors who follow and verify on Rhythm Hyve's official Instagram can get one additional portrait card, and those who complete the in-game encore concert quest and verify it at the on-site booth will receive limited portrait cards on a first-come, first-served basis. In the game, a limited "special theme" including ILLIT performance cards is available, and users who show proof of purchasing this package at the venue can receive lenticular and hologram trading portrait cards with the same design as the in-game cards, first come, first served. Dream Age has previously run events tied to concerts by HYBE artists such as TWS, LE SSERAFIM and BOYNEXTDOOR.