Expedition to the Barrier Peaks
Gary Gygax
 Expedition to the Barrier Peaks takes place on a spaceship in the Barrier Peaks mountain range of the World of Greyhawk campaign setting. In the adventure's introduction, it is explained that the Grand Duchy of Geoff is under constant attack by a succession of monsters that have been emerging from a cave in the mountains. The Grand Duke of Geoff has hired the characters to discover the origin of the creatures, and stop their incursions. The cave is actually an entrance to a downed spacecraft whose inhabitants have succumbed to a virus, leaving them dead. Many of the ship's robots are still functioning, however, and the players must either avoid or defeat them; some may also be ignored. As later seen in video games, "plot coupons" need to be collected. The adventure requires the players to gather colored access cards (the "coupons") to advance to the next story arc: entering restricted areas, commanding robots, and other actions are all dependent on the cards. Expedition to the Barrier Peaks comes with a booklet of 63 numbered illustrations, depicting the various monsters, high tech devices, and situations encountered in the adventure. Much of the artwork for the adventure, including the cover, was produced by Erol Otus. Several of his contributions were printed in full color. Jeff Dee, Greg K. Fleming, David S. LaForce, Jim Roslof and David C. Sutherland III provided additional illustrations for the adventure. Expedition to the Barrier Peaks's 32-page adventure guide is divided into six sections. These describe the crew's quarters, the lounge area, the gardens and menagerie, and the activity deck. Along the way, the characters find colored access cards and futuristic devices such as blaster rifles and suits of powered armor that they can use to aid their journey. The first two sections involve various monsters, vegepygmys—short humanoid plant creatures—who have commandeered the crew's quarters, and a repair robot that follows instructions before its batteries run out. There is also a medical robot trying in vain to find a cure for the virus that killed the ship's crew. In the lounge area, a "Dining Servo Robot" still works, although the "food" it serves is now moldy poison. The gardens and menagerie area includes an encounter with a "cute little bunnyoid on the stump". If the characters can communicate with the karate master and tell it that boxing is superior to karate, it will attack the boxing robot until both are destroyed, else they will both attack the characters. The last area of the activity deck is the loading area, where the characters can leave the spaceship. The adventure then ends, with no postscript.