Gemcraft Zero is described as 'A classic Tower Defense game, you must build towers and place powerful gems of different colors to attack the enemies invading your base. Combine gems for new, more powerful gems with more special abilities, and place traps for your enemies'. There are more than 10 games similar to Gemcraft Zero for a variety of platforms, including Android, Android Tablet, iPad, iPhone and Windows. The best alternative is Kingdom Rush. It's not free, so if you're looking for a free alternative, you could try Clash of Clans or Tower Duel. Other Gemcraft Zero like games are Bloons TD (Paid), Realm Defense (Freemium), Pokemon Tower Defense (Free) and Military Tower Defense (Free).
It's time, once again to achieve total Bloon popping satisfaction, this time in the form of classic TD. With an army of dart monkeys and a multitude of towers and weapons at your disposal can you pop all the bloons before they escape? Represent entire series of Bloons TD games.
Tower Duel is a Multiplayer Tower Defense Game for iOS and Android. Compete with your custom built Deck in ranked online matches. Place Towers to create a maze, while sending Attack-waves to overcome your opponents Defense.