Jagex, meaning Java Gaming Experts, is a UK based computer games company which produces the online game RuneScape along with a number of other smaller games. See here for more information. See also RuneScape.

Jagex Ltd. (or Jagex Software) are a United Kingdom-based producer of Java-based online computer games. According to developer Paul Gower, Jagex stands for Java Gaming Experts.http://kbase.runescape.com/viewarticle.ws?article_id=2449 The company are best-known for their MMORPG, Rune Scape.