Communication between the Game Master and the players is crucial to keeping the game fun. Solicit feedback from your players from time to time and see how they feel about the experience. If they curse, spit, or stab you with a pencil, it means they probably aren’t happy with the direction the game is going. Sadly, there isn’t much you can do about this, unless you want to give them their way. And honestly, what’s the fun in being the GM if you’re just going to let players have their way?
UPDATE: Ah. So THAT’S where the “rocks fall” joke originated!
Do It Again, Stupid
One of the highest-rated games of all time has some of the least interesting gameplay.
The Gradient of Plot Holes
Most stories have plot holes. The failure isn't that they exist, it's when you notice them while immersed in the story.
Joker's Last Laugh
Did you anticipate the big plot twist of Batman: Arkham City? Here's all the ways the game hid that secret from you while also rubbing your nose in it.
There's a wonderful way to balance difficulty in RPGs, and designers try to prevent it. For some reason.
Steam Summer Blues
This mess of dross, confusion, and terrible UI design is the storefront the big publishers couldn't beat? Amazing.