I can get a rough idea by seeing how it ranks:

1. Within Steemit itself - i.e. a Google search for “site:Steemit.com LA Noire” or “xbox 360” or similar. If it ranks well for that, then:
2. Same again without the “site:Steemit.com”

If it does well with (1), then we’ll know it’s worthwhile.

It’s significant effort though. I should edit and make a few tweaks to give it a boost.

The initial result is interesting and totally unintended!! See what result you get.