Gamearth: It was supposed to be just another Sunday night fantasy role-playing game for David, Tyrone, Scott, and Melanie. But after years of playing, the game had become so real that all their creations—humans, sorcerers, dragons, ogres, panther-folk, Cyclops—now had existences of their own. And when the four outside players decide to end their game, the characters inside the world of Gamearth—warriors, scholars, and the few remaining wielders of magic—band together to keep their land from vanishing. Now they must embark on a desperate quest for their own magic—magic that can twist the Rules enough to save them all from the evil that the players created to destroy their entire world.

Gameplay: It was written in the Rules—Save the World! Over the past two years, a group of four players had given so much to their role-playing world that it had developed a magic of its own. The creatures, warriors, sorcerers, thieves—all had come alive. And now there is an odd connection between the gamers and their characters, splitting into factions to determine the fate of the Game itself and both the inside and the outside worlds.

Game’s End: It’s all-out war between the players and characters in a role-playing game that has taken on a life of its own. The fighter Delrael, the sorcerer Bryl, as well as famed scientists Verne and Frankenstein, use every trick in the Book of Rules to keep the world of Gamearth intact while the outside group of players does everything possible to destroy it.

After an exhilarating space simulation field trip at the local Challenger Center, four talented students are hand picked by the mysterious Commander Zota for a special adventure—to travel to the future and a real moonbase in trouble, where these new “Star Challengers” will learn skills to save the human race!

The Star Challengers, a group of talented young people bound together by a common interest in the space program, return to the Challenger Center for their next mission. Mysterious Commander Zota once again sends them into the future, and this time they will work aboard the International Space Station Complex. They will live without gravity, orbiting high above the Earth—and defend humanity against a ruthless alien invasion!

It’s just supposed to be an educational field trip to the Challenger Learning Center, but JJ Wren and her friends find themselves transported into the future, to a time when the human race is besieged by deadly alien invaders. The evil Kylarn have shifted the orbits of three asteroids, sending them on a collision course with Earth!