GemCraft is a neat tower defense game where standard defensive units are replaced with multicolored gems, while gold has been substituted with mana points. Build up your defense by occupying empty towers with gems from the right side of the screen, then summon additional gems, trenches or even towers at the cost of more mana. Experience points can be used to upgrade your basic skill sets, while new skills are unlocked by incrementing your summoner's current level.

Click on a wave stone to speed things up for a score bonus, or left click on an individual enemy unit to examine their stats. Gems of the same color can be combined to increase their effectiveness. Preview the next enemy wave by hovering the mouse cursor over a wave stone. (advanced strategy guide)

Name: GemCraft
Developer: Game in a Bottle
Category: Strategy
Type: Browser