The Creeps!
TD type: preset maze
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Affordable, cute and fun! For both casual and avid gamers. It has 3 game modes (survival, endurance and door buster) Now with DLC
Fieldrunners
TD type: maze using your towers
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Nice graphics. High replayability. $2.99. Now with DLC
League of Legends: Turret Defense (US)
TD type: maze using your towers
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Beautiful graphics and music. Most of all it’s FREE
Defender Chronicles – Legend of The Desert King
TD type: Not your regular overhead view
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Beautiful graphics
CRYSTAL DEFENDERS
TD type: preset maze
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Best for Final Fantasy fans, though a bit too expensive for me. With Lite version.
Download
Plants vs. Zombies
TD type: 6 rows to defend
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I’m not quite sure if this is considered as a TD game, but I’m including it here.
I love the gameplay and the graphics and the sounds of this game
Tweet Defense
TD type: Hybrid, preset maze + maze using towers
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Has a feature to use your twitter stats to boost your towers.