Ivo Danihelka <ivo@danihelka.net> - main developer - developed new game engine Pavel Danihelka <fillets@danihelka.net> - webmaster, level data, documentation Mirek Olsak <mirek@olsak.net> - many new levels, undo Frederic Panico <fratloev@yahoo.fr> - French translation Ronny Standtke <Ronny.Standtke@gmx.de> - German translation Simone Cociancich <simone.coch@tin.it> - Italian translation Przemek Bojczuk <przemek@bojczuk.pl> - Polish translation César Catrián C. <ccatrian@eml.cc> - Spanish translation Astrid de Wijn <A.S.deWijn@phys.uu.nl> - Dutch translation Damyan Ivanov <divanov@creditreform.bg> - Bulgarian translation Olov Gustavsson <olov.gustavsson@bredband.net> - Swedish translation Marko Burjek <email4marko@gmail.com> - Slovenian translation Ricardo Faria <rickybrag@gmail.com> - Brazilian Portuguese translation Leonid Myravjev <asm@asm.pp.ru> - Russian translation ALTAR interactive <info@altarinteractive.com> - developed original game in 1998 (for Win32) - released code and data under GNU/GPL in 03/2004