The Esolang wiki has showcased a small number of programming languages on its main page. Although the featured language rarely changes, it is useful for discovering notable languages. A few languages have also been proposed as candidates to be featured.
Twoee, which is derived from Thue, is listed in the featured languages category, although it was never featured.
The featured language was started on 19 Mar 2012, when the main page was redesigned.