Core and casual has been used to distinguish between a few things, hence why they are so hard to follow in a debate. To distinguish between:
1) Games that habitual gamers play and non-habitual gamers play.
2) Games that are traditional, and games that are a new type of experience.
3) Games that tend to require a sit-down period and those that are pick up and play.
4) Games that have darker themes and games that have lighter themes.
5) Games that have more violent and sexual themes, and those that do not.
6) Games that have kiddy themes and those that do not.
7) Games that evoke deeper emotions and those that do not.
8) Games with intricate art design and those that are simplistic.
The list continues.
But in the end, what matters is what the person using the word is trying to express. If Core and Casual are words that don't work for you, there's a reason. It's because they are so broad for the time being. Until people use more precise words to denote what they mean, we are left with asking the question.







