: An upcoming remake (announced for 2026) featuring updated graphics and brand-new story content.
At its core, the "Codex Exclusive" refers to a special, limited-access digital artifact released by a coalition of archival historians and the mysterious "Future Gadget Lab Preservation Society." Unlike a simple remaster or anniversary art book, the Codex Exclusive is a hybrid interactive document. It is not sold on mainstream platforms like Steam or the Nintendo eShop. Instead, access is granted via solving an ARG (Alternate Reality Game) puzzle that mirrors the IBN 5100 search from the original visual novel. steins gatecodex exclusive