Found a really good article on how to design the perfect learning curve when creating a video game if anyone is interested!
http://www.gamasutra.com/view/news/273302/7_games_with_great_learning_curves_that_all_developers_should_study.php
"The best games are a slow steady learning process.
They teach and guide while they entertain and challenge. They push players to improve steadily — to master a mechanic not by forcing you to scale a metaphorical wall, but by compelling you to climb a series of metaphorical steps.
This does not necessarily mean they have great tutorials — indeed, many games with awesome learning curves throw you straight into the experience proper. Nor does it mean that they have to dumb down their design. It's simply a matter of crafting progression systems that allow the player to get a handle on the fundamentals early and then to grow and improve at every stage after that.
It's not easy to pull this off. To give you some guidance as to how you can execute a brilliant learning curve, we asked several designers to tell us what games they think do it well."