Type: Posts; User: TrafficCop
Having duplicate content won't always get you, but it's never smart to copy and paste other people's articles on your site.
If you're using 301 redirects, you'll be fine.
Directories are almost useless now because they get spammed so much. However, to answer your question, try to get some links with anchor text to match what you want to rank for.
You'll never rank for "game" so don't even bother putting just that word. Not only that, but you'll have a really hard time ranking for "game development" without a lot of work. Pick a couple game...
Contact Godaddy's support and they should be able to fix it for you.
It is possible your site was indexed before the title was put in place. It seems to be showing up just fine in Google right now.