GMK Abyssal is a customizable keycap set designed for mechanical keyboards, featuring a unique aesthetic inspired by deep-sea themes. The group buy for the keycaps ends on March 31, 2023, for most vendors, with an exception for Mykeyboard.eu, which closes on April 6, 2023. The estimated fulfillment date for the keycaps is between Q4 2023 and Q1 2024. Available kits include a Base kit priced at $110, Dark Alphas for $76, Numpad for $38, Spacebars for $24, Novelties for $39, and a KBM metal artisan for $40.