GRAPE: Generic Roleplaying All Purpose Engine.
Copyright 1998 By Scott Gray.
This role-playing game is distributed free of charge. You may give out copies, so long as the text is not modified and no fees are charged for the copies distributed.

GRAPE is updated, revised, and simplified, at various points. The current version can be found at If you would like to suggest updates or changes to the author, or simply to make comments, please feel free to write email to

GRAPE is a game for two or more players. This page is a complete game. Advice to new players can be found in the Green GRAPEs supplement. Adventure ideas and links to complete adventures can be found in the GRAPE Seeds supplement. Ideas for magical systems can be found in the GRAPE Grimoire supplement.

One participant is chosen to be the Game Master (GM). The others are all players, and will make characters. The GM is responsible for designing an environment and situations with which the characters will interact, and to approve or disapprove the players' characters and guide the players in making/developing characters that will be enjoyable to play and enjoyable to witness being played in the varied situations that come up. The GM has final say over everything that happens in the game, but players who don't like it are allowed to quit.

Before play begins, the participants choose a setting. The setting might be cyberpunk, fantasy, Russian revolution, ice age, English civil war, Chicago mafioso, Trojan war, a WWII POW camp, or anything else the players can imagine. The characters and environment made by the players and GM should be consistent with the setting.

Players may use any media they wish to describe their characters, as long as it is approved by the GM; pictures, short stories, clay, etc. Some players may present characters made under other rules systems with GM permission. Players should be prepared to clarify their characters for the GM. The GM will decide whether or not the character is reasonable, and may give suggestions for revisions or disallow the character.
As play proceeds, players are encouraged to play "in character," using their character's voice and taking on the role. Funny accents are encouraged!
As the game progresses it often becomes plain that a character is not complete. Some aspects of a character were not made clear in, or mentioned by, the original character concept. Sometimes such changes do not represent oversights in character creation, but rather changes which the character has undergone over the course of the game.

With the GM's permission the character concept can be updated or modified. In some cases, a player may petition for such a change. To prevent character development from distracting players from the game, many GMs will only entertain suggestions to modify a character concept at the end of a game session.

Game-play consists of hypothetical situations being described by the GM, and the characters' actions and reactions being described by the players. The GM describes settings in which the characters find themselves, including the actions of any characters in those settings not represented by the players. The manner of resolution of each scene or hypothettical situation will suggest to the GM ramifications which will lead the GM to generate the resulting hypothetical situation and present it to the players, leading to a story being generated by the interaction of the players and the GM.

The GM will sometimes use (or ask players to use) a random or pseudo-random influence, to help determine the outcome of particular hypothetical actions. The GM may specify the random factor (GM's whim, tarot cards, question to a passerby, vote, dice, a spinner, random number tables, bribes to the GM, expenditure of chits or points, acting out the scene, rock-paper-scissors, etc.), or allow the player to choose. The GM interprets the result.

If you enjoy GRAPE, please treat me to a $3 cup of coffee!