Here is an example 5 Room Dungeon to inspire your contest entries. In your campaign, you'll need to flesh out some of the details, but this skeleton format is perfect for GMs to pick up and customize for their own memorable sessions.

A traveling dungeon of canvas and props...

This is the tomb of an ancient knight, later made politician. He fought in countless battles, and his fabled armour is said to have been buried with him.

A tough climb for a source of wonderous healing...

Skanda Biologicals is one of the world's premier producers of Awakened Biological Systems. Now, the party has been asked to penetrate their fortress, and destroy their research. But, can they find the force of will to do so?

The players have a chance to cure the plague that has sprouted up upon their travels. Will they choose to do the right thing and help bring health back to the region?

A cell of cultists hidden in a city. These people seek to bring a dark god of antiquity back into the world. Can you stop them? WILL you stop them?

Before the honored dead are placed in their sarcophagi of alabaster, they come to the Villa of the Embalmers.

Enter the Kingdom of Frog King in search of Treasure. What deal will you have to strike to get out alive?

Once a mighty pirate ship, Deathwail was captained by the dreaded pirate known as simply as Redeye. A man prone to unspeakable acts of Violence, Redeye and his ship Deathwail were finally destroyed in a horrible battle. However, Redeye was not to be counted out. Prior to the battle, he had plundered an ancient tomb, and had found a relic which he had kept. This item was cursed, and when he and his crew died, it brought them back in a horrible mockery of life. Enslaved by this relic, the pirates scour the waters, looking for souls that can be fed to the evil relic

A rare form of Undead seeks the help of a band of PCs. Will they be up to the challange?

In the ramshackle town of Spear Malice only a single building still stands. It has defied the Great War and its spears of light; nuclear blasts that devastated the entire state, and ever since then it has defied the onslaught of time.

Its halls have not yet been breached, and a wealth of technological treasure await, ripe for plunder! But there are others who crave this treasure; others that will do anything to claim it.

Do the PCs dare to go and raid the tomb of the Pharaoh Upshi?

A local Wizard, rumored to have lost his mind, like he has his hand, Has issued a Challenge and a prize for all. Simple-Enter his tower and find him to claim your prize.

The TheoRgs are known for being amongst the biggest, toughest, and most generally unpleasant sentients in the galaxy. And this is their nightclub.

The Great King long ago ceased attempting to police the wastelands of his Border Marches, and these debatable lands fell into the hands of petty counts, retired generals, and warlords, who constructed and then abandoned many keeps ripe for plunder.

It is said wizards don't work well with others of their kind. Once they have a tower, woe to anyone not recognizing their superiority, that is the rule. But to every rule is an exception. Once, there were three wizards, on friendly terms, that built their towers closer than anyone before. The towers are lost, the knowledge therein may be yet reclaimed.

A five room dungeon with the appropriate clashes of steel, smooth talking, and betrayal.

Yar...I do indeed know of Crossbones Isle, stranger. But ye'd be better suited to avoid that place like a widowed wench.

The Earth shifts, revealing a horror beyond time and reason...

The powerful wizard Sumuho styled himself as a god and was worshipped far and wide. After his fall, his vast temple sank into the desert long ago. What secrets lie in the Sanctuary of Sumuho?

Somewhere along the line, someone decided that a giant swimming pool would make a great place for a rave club