SpiralAI has revealed RyzaChat: Your Midsummer Dream Story with AI Ryza (unofficial translation), an AI-driven chat RPG inspired by the Atelier Ryza franchise. Developed in collaboration with Koei Tecmo’s studio Gust, the title is set to debut sometime in August 2026, with pre-registrations now available. This announcement follows the recent news of Koei Tecmo’s alliance with a local AI firm.
RyzaChat takes place on Kurken Island, the homeland of Atelier Ryza, where progress is made entirely through conversations with an AI version of Ryza. The initial goal involves assisting Ryza in constructing a boat to depart from Kurken Island, an action that unlocks the world map. Subsequently, new quests are dynamically generated as players engage further, with the game promising virtually endless personalized quests shaped by players’ interactions with the AI. The world map mirrors the original games’ environment, enabling travel between locations for exploration, material collection, combat, synthesis, and construction alongside the complete cast from the Atelier Ryza trilogy.
In this regard, RyzaChat lacks a predetermined storyline. Instead, the focus is on crafting your own narrative. Beyond the quests, accessible via the game’s RPG Mode, players can switch to a Chat Mode for relaxed one-on-one chats with Ryza. Ryza’s facial expressions and gestures will adapt as she replies to your messages, and the game silently manages inventory, stamina, and currency in the background. For instance, any items gathered will be added to your inventory, and Ryza will offer guidance on required materials or in-game funds for building purposes.
Accompanying the announcement, SpiralAI has highlighted several steps it claims were taken to ensure ethical AI usage. The developer confirms that all illustrations, character visuals, promotional clips, and key artwork were crafted by human artists under the guidance of original Atelier Ryza illustrator Toridamono, ensuring no AI-generated video or images are used in the game.
Ryza’s voice synthesis is derived from recordings specifically made for the app by her original voice actress, Yuri Noguchi, utilizing SpiralAI’s proprietary voice synthesis model “Kotodama.”
The game’s dialogue relies on SpiralAI’s exclusive “SpiralLLM,” which was trained on the Atelier Ryza series’ narratives and reference documents. The company states that the model was built on publicly accessible base models with licenses permitting such applications, and was further trained exclusively with data that SpiralAI and the IP owners were legally permitted to use.
The developers also emphasized that RyzaChat’s world, characters, and setting were developed under Gust’s oversight to remain true to the original series.
Lastly, SpiralAI guarantees that earnings from the game will be distributed to contributors, including illustrators, voice actors, and IP rights holders through royalties linked to the assets utilized, framing this system as a means to ensure AI character-based experiences continue to support creators.
RyzaChat: Your Midsummer Dream Story with AI Ryza is slated for an August 2026 launch on iOS and Android.