Gamma World: Drowned World

The intrepid group was last seen driving away from the Cretaceous Park, pursued by the Tyranosaurus Rex - some good driving out witted the beast and they found themselves at a large black rectangular doorway, with concrete ramps leading up.  Being ever curious yet cautious, the group sent Tabbatha through the doorway.  She found herself in a metal dome that was cooler than where she has just come from, the room otherwise bare except for three suits with glass bubble helmets and a single door with a green light as well as feeling somewhat lighter than before.  Reporting back they group drove their quad bikes through the door and into the dome.

You're not in Kansas anymore
Arriving through the black door, they investigated the door, opening into a corridor with another door with a red light.  Rocky tries to open the door, setting off the alarm and warning - please close the inner door and put on space suits before exiting the building.  Quickly getting into the suits (Rocky proves too big but finds a breathing apparatus) they exit the dome onto the surface of the moon!  Spying another dome, they are assaulted by a group of Clickys - mutant cockroaches and they quickly rip through them.

Exploring the moon base, Tabbatha inveigles her way into the remaining humans and drops some intel for the price of a can of tuna fish.  The humans have been battling the Clickys and the numbers of each have declined rapidly, with about eight remaining on each side.  Bargaining for metal resources, the group instigate 'Operation Deliverance' with a faint banjo twang in the background and set about removing the remaining Clickys.  During the ensuing fight, they manage to dominate a Tee-Vee Clicky who joins their menagerie and the black ray gun expires. 

Returning through the dark portal, they find themselves on a beach near a beached tug boat.  Heading south, they meet up with Zig and Zag, handing the Clicky over to him and continue to bike to Seaport.  

Seaport, a maze of high rise buildings sticking up out of the sea and surrounded by mats of algae they see one building surrounded by metal sheets and it seems to be being looted of materials from the lower floors.  Travelling across to the town, they bargain with the Mariner to secure supplies for the Chikkinobbs corporation, the Harvester in charge of the beds of algae and the Plunderer who loots buildings.  It is here that the group see a television broadcast announcing war has broken out in Barter Town.
From the doors of the Church of TV an assortment of humans, robots and androids flow towards the doors of Barter Town, taking fire from the inhabitants but followers of TV already in place allow them to gain a foot hold in the town.  War has come to Barter town!

From the heights of his eerie, Lenin looks down on Barter Town.  'Mmmm, interesting.  Send word, we are going to war!'

A young reporter, her hair looking dishevelled, her uniform dirty crouches in the ruins of the Chikkinobbs franchise.  She reports: 'the fighting is intensifying in the main concourse.  Those from barter Town have been pushed back to the cinema complex, while the Zoopremacists are making some headway but the cyborg legion is holding them off.  Top generals are reporting the war will be soon be over and the Church of TV will hold Barter Town.'