I have been working on a "for fun" side project TTRPG to play with my friends. The RPG is rules-light, narrative-driven, and explicitly non-crunchy. Currently, there are only about ~15-20 pages of text.

When GPT-5 releases, I will attempt to have it GM a session for my playgroup after feeding it the most up-to-date PDF of the rules. I will do my best to give GPT-5 every chance to succeed with prompting and provide it with a detailed and thorough setup.

Market Resolution Criteria:

This market resolves YES if:

• The session runs well with no obvious errors or mistakes.
• GPT-5 actually understands and executes the rules as written.
• The session does not feel lame or derivative. Scenes and encounters should not be clearly pulled directly from the rules document. Creativity and uniqueness in the world are essential, and I will prompt for these aspects initially.
• GPT-5 makes use of relevant rules when appropriate. For example, omitting to use the correct combat rules during combat would result in a fail.

This market resolves NO if:

• The above conditions are not met.
• GPT-5 does not release by the market close date.

Details:

• My players will handle all dice rolling, so GPT-5 does not need to handle dice.
• The ruleset is not quite ready for release; I will post it here if it reaches a stage I am happy with.
• The ruleset is a fairly heavily modified variant of a PBTA system, using a standard 2d6 system.
• Currently GPT-4o fails incredibly hard at this task.
• This market resolves by the intent of the question over any specific language in the description. I will update the language and increase clarity and specificity if needed.