Hedgewars - a Worms-like game.
Distributed under the terms of the GNU GPL licence.
Images and sounds are distributed under the terms of the GNU FDL licence.

Source:
Copyright 2004-2007 Andrey Korotaev <unC0Rr@gmail.com>
Copyright 2006, 2007 Igor Ulyanov aka Displacer <iulyanov@gmail.com>

images in Data/Graphics, 
sounds in Data/Sounds,
themes "avematan", "bubbles", "tibet"
Copyright 2004, 2005, 2006 Andrey Korotaev <unC0Rr@gmail.com>

Fonts: see Fonts_LICENSE.txt

Images in Data/Front, Data/Graphics/Graves, 
themes "ethereal", "norsk", "wood", "xtheme"
Copyright 2005 Alexey Andreev <grayfox@inbox.ru>

Map and theme "cheese":
based on Wormux map "cheese" by Anthony Carré <yeknan AT yahoo DOT fr>

Map and theme "Volcano": by Damion Brookes <nintendo_wii33 AT hotmail.co.uk>