编辑点评：以美国注明的神秘地带51区为故事背景的科幻塔防，你遭到机器人佣兵的袭击，画质精美细腻逼真，爆破效果华丽。

51区在美国中是个神秘的区域，许多人相信它与众多的不明飞行物阴谋论有关，在好莱坞电影中也常常与外星生物或者政府阴谋论相关。游戏就把故事背景放在这个神秘的地方。

在51区里，你遭遇到了机器人佣兵的袭击，必须建立各种有效的防御，并且成功打退敌人的进攻，这样才能保证51区的安全。游戏还为玩家提供了51个独特任务，17种不同的地图模式，并且支持超过250万玩家同时在线。

Area 51 Defense is the most beautiful sci-fi tower defense game available on iOS. You can play campaign or try your skills in survival more. Whatever you chose, beautiful HD graphics, immense action and smooth gameplay will give you hours of enjoyment!

FEATURES:
★ 3 campaigns with 75 unique missions
★ Survival mode on 23 cool maps
★ 14 types of deadly enemies
★ 5 types of towers with 12 upgrades per tower
★ Each tower has it's own special ability

Area 51 Defense is a mature version of Epic War TD, game enjoyed by more than 2,500,000 players all over the world!