District 21 (IOI City Mall)
District 21 is an apocalypse-themed indoor adventure park located on the first floor (AT 6) of IOI City Mall in IOI Resort City, Sepang, Selangor, near Putrajaya. Opened in 2017, it features a post-apocalyptic industrial setting with interconnected adventure attractions including rope courses, slides, trampolines and aerial challenges. Designed for families, youths and groups, it combines active recreation with themed entertainment inside one of Malaysia's largest shopping malls.