I like Edge of Space a lot because it shows a lot of analysis and design. That said, it has some major issues, one of which being that it's so minimalistic that it's actually suffering for it, while there's some really, really good stuff there in terms of what could be expanded upon, it just doesn't do it and it kinda hurts. I recognize that there's something to be said for a game that can fit on just a few small pages, and if this were an entry for, say, Game Chef, it would be phenomenal. It's still a good game, but I'm just not feeling the pocket mod format, since it provides two formats it could very well be made with an examples and description "fluff" rich version and it would be a lot better, since at its short length (about 1300 words), it feels very good but still lacks some of the things that I'd like to see, namely at least some description of the alien menace, since as is it's not terribly engaging.
[4 of 5 Stars!]