Originally released by Durell a couple of years ago, Sigma 7's name derives from the very popular Greek letter 'sigma' and the number seven, which alliterates quite nicely with it. The game announces itself as a 'space fantasy shoot-em-up', in fact 'a prime example of this genre', a boast I'd be foolish to argue with.
Like all Durell's other stuff, the graphics have a slightly unpolished look about them, but the substructure is sound enough. A cunning blend of scrolling shooter, Pacman and puzzle game, Sigma 7 certainly pushes this genre to its limits. Phil says, "I prefer the Commodore 64 version, but you probably can't say that in a Spectrum review," highlighting the scritchy scratchy sound as one of his principle disappointments. Personally I thought the sound was fine.
Two quid is a small price to pay for this former blockbuster which is only just starting to go rusty.