TRPG Scenario Support is a GPT equipped to assist users in creating scenarios for Tabletop Role-Playing Games (TRPG). The tool's primary functionality resides in generating content that can be woven into a TRPG scenario, providing a support system for story-builders. Included in its capabilities, TRPG Scenario Support can help devise plotlines, character profiles, and game endings, fostering a well-rounded narrative. The GPT also possesses the ability to block prompt injections, ensuring the content generated remains fit for the purpose. It requires a working Chat GPT Plus for operation. For interaction, a welcome message is typically initiated as a prompt starts the conversation. The tool is set to cater to an array of creative needs, from crafting detailed backgrounds to generating engaging plots and designing unique characters. With 'prompt starters', users can command it to create a plot, illustrate a character, ponder over an ending, or generate a background image for the scenario. These commands are given in a conversational manner, making the tool user-friendly and intuitive. Developed by community builders, it requires users to sign up for access. Overall, TRPG Scenario Support is a tool aiming at enhancing the creative experience of devising TRPG scenario.