TRY THIS!
BLENDER - a fairly advanced program - 100% free
-allows FULL creation of 3d games, animations and al sorts of other stuff too!
-plenty of documentaion and support to boot!
Get a lookin
HERE...and if you decide you want to download and use it, this user guide makes it nice and easy with plenty of content, models and other gubbins - just download and extract both files from
HERE (it includes a version of Blender and some game demos and other great bunkum!
I've just downloaded it and will let you know how it goes - if i come up with ANYTHING, I'll be sure to post a link here!
Ive got more links to more game makers - including much more simple ones that allow you to create games akin to the Final Fantasy series as it was on the SNES, and I'll post them up when Ive checked their legitimacy.