No vouchers necessary. The Icon Bar's gaming partners, Acorn Arcade, have recently been given the green light to release Ixion and other classic Tom "Berty" Cooper games from the 1990s, following their change in status to freeware. Thanks must go to Imparo who are the copyright holders, and Tom himself of course.
 
Tom Cooper is now writing games for mobile devices. Take a look if you're a fan of his games and are up with the latest phone wizardry, or read the news item on Acorn Arcade to find out how to obtain Ixion.