The main rulebook has numerous scenarios players can use for their games, with all of these scenarios centered around capturing objectives.

The main rulebook required for play.

There are several different associations (called Covenants) described in the main rulebook, and several more in the supplements.

There are six books total in the Orpheus line; the first is the main rulebook, which hold the rules used throughout the series.

The Killing Jar was the first adventure published after those provided in the main rulebook.

Character sheets for a game are usually found within the game's main rulebook, and permission is almost always given for players to photocopy this sheet.

Eventually, White Dwarf provided proper "army lists" that could be used to create larger and more coherent forces than were possible in the main rulebook.

The Cyberpunk 2020 equivalent of character classes are roles, of which the main rulebook contains 9, and later supplements have expanded the number considerably.

A system for resolving high-speed chases was included in the main rulebook (and expanded somewhat in later supplements).

This may include sections that are not part of the main rulebook, eg as contract terms.