tower of fantasy, online multiplayer game, cannot be played offline, requires internet connection, persistent world, shared environment, cooperative gameplay, real-time interaction, MMORPG elements, character customization, open-world exploration, futuristic landscapes, sci-fi structures, dynamic weather system, day-night cycle, action combat system, PvE quests, PvP battles, social features, guilds, team strategy, resource gathering, equipment upgrades, cross-platform play.