As with the popular Druidess Gold slot machine from Lightning Box, Astro. Sydney, 25th July – Specialist slot developer Lightning Box is hoping to make sparks fly with its latest electric offering, Lightning-Horseman. Sydney, 25th July – Specialist slot developer Lightning Box is hoping to make sparks fly with its latest electric offering, Lightning-Horseman. . This game clearly hopes to dazzle with its theme, gameplay and innovative structure.