This is a very original tower defense game. As in other games of the kind you build towers along a path to stop the monsters reach you're castle. However, you don't just buy and build towers. The tower itself doesn't do anything. It needs a gem on its top. You can create new gems when you have enough mana and, the thing that makes this game unique, you can bind same level gems together, increasing it's power attack, speed and so on. The gems must be dragged onto the towers at the game screen to start attacking the enemies. You can also build new empty towers and other structures.

Also, you can save and load between missions. This is a very important feature because the game has a lot of fun levels to play and finish. Gem Craft also has some RPG elements. You are a Wizard that gets stronger and stronger with every monster you slain. Every level you gain gives you points that you can spend on cool and very helpful abilities, like an increased mana capacity at the begging of a mission.

Havoc and corruption swarms through the land, and you are one of those few wizards who can put an end to it. Create and combine magic gems, put them into your towers and banish the monsters back to hell!

Controls

1-6 or B/T/C/M/W/G selects spells
hold ctrl to create/combine as much gems as possible
hold shift to place multiple towers/trenches
hold shift to create multiple gems
P to pause
click/space/enter to close tutor panels