Four days: World defense

Special skills to use in battle Upgrade your towers to increase their power Protect your territory from the aggressors In the world of Four Days: World Defense, high-tech robots are attacking your territory. Build towers with different weapons to defend yourself and upgrade them as time goes on to make them more powerful. Combine the towers with different weapons to create an even more effective defense. Utilize special skills in critical moments of battle to gain the upper hand. Win and earn achievements to show off your success. This Android game offers 9 types of towers, 5 difficulty levels, 12 different maps, and special skills to use in battle.