I know Lua is becoming a popular choice with game developers for similar applications - that is why I mentioned it.

I'm not familiar with game development, but I've heard good comments about Lua, in particular it has been designed as the embedded language of choice for what that if I understand correctly should be the successor to pdfTeX i.e. namely LuaTeX. I didn't even know about Inline::Lua but that definitely sounds as good news. Other than that another neat little language especially targeted at embedding which I personally find to be quite interesting is io, although in this case I see that there's no Inline::io nor Inline::Io, which suggests me that possible connections with Perl are much less explored, but of course I would be glad to be proven wrong.