Chaos Zero Nightmare is a cosmic loop RPG blending strategy and roguelike elements where you command agents on the SS Nightmare against cosmic horror. Gameplay involves building card decks to create synergies during unpredictable "Chaos runs" while managing agent stress to prevent mental breakdowns. Uniquely, failure fuels progression; base operations include choice-driven therapy sessions to manage agent trauma, bond development, or memory resets. Released in late 2025, this title is available on PC and mobile platforms.