From Dungeons and Dragons: Garrett

Too easy?

Did the heroes mop up these undead without working up a sweat? Maybe they need a bigger challenge! Bring in reinforcements—Cultists from another room, more undead, etc. You can create new monsters out of nothingness if you don’t want to deplete the other rooms' monster content.

Having ventured beyond the deadly Watchers, you find yourselves on a raised platform. In front of you is the high altar. Two silver pillars glint from the back corners of the altar. Off to the left you can see a doorway leading to surely greater rewards—and dangers.

This is just a dumping-ground for table examples.

You'd better see my Wikipedia user page for now.