You can give your players incentive to do things, but if it’s not the incentive they’re looking for they will probably demonstrate it by their in game actions. Some examples of player incentives include:
A programming project where I set out to make a Minecraft-style world so I can experiment with Octree data.
Shamus Plays WOW
Ever wondered what's in all those quest boxes you've never bothered to read? Get ready: They're more insane than you might expect.
There are two major schools of thought about how you should write software. Here's what they are and why people argue about it.
Trashing the Heap
What does it mean when a program crashes, and why does it happen?
Could Have Been Great
Here are four games that could have been much better with just a little more work.