The 3D word game was originally called Stact. It was awarded a prize by The Game Designers' Association in a competition held at 'Spiel', an International Game Fair in Essen, Germany
Press release by
Game Designer Association (17 Nov 2004) [click on 'press release' at top of that screen]
Report by the online games magazine
'Hall 9000' (see number 8: 'Der Prototypentest') [This is in German].