by Siv3D is a generative pretraining transformer (GPT) that's tailored to facilitate the creation of game ideas. This GPT operates on the principle of receiving keywords and then generating game concepts based on these inputs. It has been designed for those who might need inspiration during game development processes or simply for individuals enthralled by the idea of creating unique gaming narratives. By introducing a few relevant keywords, users can obtain inventive and fun game ideas crafted by this GPT. Furthermore, the GPT's 'prompt starters' hint at its versatility in handling a broad range of themes, including elements like 'ship', 'fish', 'horror', 'school', 'destruction', 'danger', 'rain', 'flower', 'ice', 'falling', 'candy', and 'tragedy'. It's imperative to note that this tool requires ChatGPT Plus for full functionality. The GPT, however, is not just about game ideas; it invites users into a realm where creativity meets artificial intelligence, encouraging the exploration of limitless gaming storylines and scenarios, thereby presenting a fresh perspective in game ideation.