{{Map Infobox
|designer=Dario Casali{{IA|20040805103005/http//planethalflife.com/features/interviews/casali|Interview with Dario Casali|Planet Half-Life (July 15, 2004)}}



'''''Undertow''''' is a multiplayer map in ''Half-Life''. It was included with the game on release. Dario Casali's signature can be found in the map using the noclip mode.

==Behind the scenes==
*''Half-Life Opposing Force'' version of the map was released on December 8, 1999.{{IA|20000817085230/http//sierrastudios.com/games/opposingforce/news.html|'Tis the Season New Op For Maps|Official ''Half-Life Opposing Force'' website (December 6, 1999)}}


CategoryMultiplayer maps