# Game Mode/Campaign Menu Options

The Game Mode/Campaign option allows the user to select what rule set and generation method will be used when generating your character.

As of now PCGen supports these following Game Modes:

- 3.5e - Revised (v.3.5) System Reference Document.
- 3e - System Reference Document (default selection).
- Modern - d20 Modern System Reference Document.

Once you select a Game Mode/Campaign the GAMEMODE Tag in the source .pcc files under the Data folder will determine if the sources show up for a given Game Mode.

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