Pokémon Solar Light & Lunar Dark (SLLD) is a fan-made, RPG Maker XP / Pokémon Essentials game released by creators credited as Watertrainer and Chai‑Tao — final public release dated January 2019 (v1.0.1). It is a Windows PC fangame (not a GBA title). References and community distribution point to direct PC downloads (MediaFire, DeviantArt posts, fan forums, ProBoards, Fandom wiki) and third‑party ROM/ROM‑style sites that sometimes rehost it as a "ROM" or Windows download. There is no official GBA ROM release of SLLD from the authors.