expressiveintelligencestudio uc santa cruz rules of engagement moving beyond combat-based quests...

expressiveintelligencestudio

UC Santa Cruz

Rules of EngagementMoving beyond combat-based quests

[email protected]://users.soe.ucsc.edu/~anne/18 June 2010

Anne Sullivan, Michael Mateas, and Noah Wardrip-Fruin

mailto:[email protected]

http://users.soe.ucsc.edu/~anne/

expressiveintelligencestudio UC Santa Cruz

Motivation

We wish to enable players to have deeper choices within the game narrative.


Combat Reliance

The main mechanic for choice is through combat.

Meanwhile, narrative is on a fixed trajectory.

Localized choices

Localized choices

Localized choices

Linear story Linear story


Quests

Players move through narrative in the form of quests.


Playable Quests

Quests lack interesting or meaningful choices.

Quests are not playable.


The GrailGM

GrailGM

Game

Quest Library

Active Quests

Player

Game System

Player State World State

Quest Manager

Quest Filter Active Quest Monitor

takes actions

updates

monitors

suggests quests informs of completed quests

offers new quests, quest-related actions


The GrailGM

The GrailGM selects pre-authored quest pieces and re-combines them based on player actions.

Quest Goal

NPC NPC NPC

Solution

Solution

Solution


Quest Goals

Quest goals are defined as the game state change required for the quest to be considered complete.

Quest Goal

NPC NPC NPC

Solution

Solution

Solution


NPCs

Quests are no longer tied to particular NPCs. This allows the NPCs to play a larger part in the game interaction.

Quest Goal

NPC NPC NPC

Solution

Solution

Solution


Solutions

Quest Goal

NPC NPC NPC

Solution

Solution

Solution

Solutions are the available actions that the player may take to complete the quest goal.


Demo

Putting it all together - demo time!

Quest Goal

NPC NPC NPC

Solution

Solution

Solution


Conclusion

By generating quests in response to player’s actions, they are able to have deeper choices within the game narrative.


Thank You

Questions?

Anne [email protected]://soe.ucsc.edu/~anne/

Blizzard, World of Warcraft, 2004

mailto:[email protected]

http://soe.ucsc.edu/~anne/


The GrailGM

GrailGM

Game

Quest Library

Active Quests

Player

Game System

Player State World State

Quest Manager

Quest Filter Active Quest Monitor

takes actions

updates

monitors

suggests quests informs of completed quests

offers new quests, quest-related actions


The GrailGM

GrailGM

Game

Quest

Library

Active

Quests

Player

Game System

Player State

World State

Quest Manager

Quest FilterActive Quest Monitor

takes actions

updates

monitors

suggests questsinforms of completed quests

offers new quests, quest-related

actions


The Grail Framework

The GrailGM allows for quests to be decoupled from a specific NPC.

This allows for NPC / player relationships to become part of the actions available and to be part of the developing story.

expressiveintelligencestudio uc santa cruz rules of engagement moving beyond combat-based quests...

Documents

questrelated actions

new quests

completed quests

quest goal npc solution

form of quests

player actions

combatbased quests

preauthored quest pieces