Having already surpassed one million downloads in Korea, CASTLE DEFENSE ONLINE has proven itself as a small but powerful mobile game. For its North American marketing campaign, EASTER spearheaded the full spectrum of promotional efforts — from crafting strategies and ad planning to producting videos and image assets, managing media placements, and launching influencer campaigns.

With a sharp focus on gameplay appeal and market dynamics, we positioned "CO-OP DEFENSE" as the core slogan to attract new players in the global market. Given the campaign's limited budget, we prioritized strategic choices, optimizing resources through carefully targeted digital media initiatives and influencer partnerships to maximize impact.