[carno]

Don't go with Ruby for game development. Much less with RubyMotion.

I love Ruby, I have made games with Ruby using Gosu and it simply wouldn't work on a mobile device. The GC will kill you app and create random frame drops.

[evilduck]

It's worth noting that RubyMotion's GC is not the same as MRI or JRuby's GC. I don't know enough about GC differences to say much more, but I do know games have been written in RubyMotion just fine.

[AlexeyBrin]

There is no GC in RubyMotion.

[AlexeyBrin]

I think you are confusing the Ruby interpreter with RubyMotion. RubyMotion is a compiler, there is no GC involved.

[stashpro]

RubyMotion is not standard Ruby, it is a reimplementation of Ruby using the Objective-C runtime.

[carno]

You guys are right, forgot that RM compiles to objc. Then it might work!

Even then, when making a game you want to stand on the shoulders of a good development community, go with the biggest community for iOS. So far it seems to be Unity.