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.
Re:Ask HN: RubyMotion or Swift?
by AlexeyBrin on Friday August 22, 2014 @01:17PM
(#8212977)
There is no GC in RubyMotion.
Re:Ask HN: RubyMotion or Swift?
by AlexeyBrin on Friday August 22, 2014 @01:13PM
(#8212959)
I think you are confusing the Ruby interpreter with RubyMotion. RubyMotion is a compiler, there is no GC involved.
RubyMotion is not standard Ruby, it is a reimplementation of Ruby using the Objective-C runtime.
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.
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.