Castle of Blackwater is an engaging 2D action game that incorporates social deduction elements within a web3 framework. Developed over two years and supported by Merit Circle, it seeks to revolutionize the interaction between social gaming and blockchain technology. In this thrilling experience, up to 15 players find themselves in a perilous castle, where trust and betrayal are key to survival. Participants must collaborate to complete tasks while also being wary of those who may deceive them for personal gain. The game emphasizes strategy, forging alliances, and uncovering hidden motives. Each player is assigned a unique role within one of three factions, each equipped with specific abilities tailored to different playstyles. This diversity encourages players to leverage their skills and engage in deductive reasoning to identify opponents, while ensuring their own safety in the game. Alive players can utilize various in-game tools to solve challenges, while those eliminated can still make an impact by collecting and spending souls to acquire power-ups that can influence the game from beyond the grave. The COBE token serves as the primary currency within the Castle of Blackwater ecosystem, enabling players to purchase characters, land, and exclusive cosmetic items, enhancing their gaming experience and personal investment in the game.