- This article is about the source port. For the game mode, see Game modes#Skulltag.
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Skulltag is a source port led by Brad "Carnevil" Carney derived from ZDoom focused on adding client-server multiplayer and multiplayer content similar to Quake III: Arena. Its last release was 0.98d on the 7th of November, 2010.
Skulltag development ended on the 7th of June 2012 after the development team created a fork under the name Zandronum days before.