Welcome to the newly released Javascript version of Gem Tower Defense replacing the original Adobe Flash version release in 2007 which is no longer supported due to the end of life of Adobe Flash. I am actively working on the new high score metrics and various other fixes.
Released version 0.5.2 with a fix for the performance issue above level 50. Repick cost is now reverted back to the original Gem TD cost. Jan 1, 2021. Gem Tower Defense re-released in Javascript.
Choosing a Gem Tower. Once rocks are places they will reveal the potential stats of your gem towers. Select each one to determine which gem has the best stats by comparing the descriptions on the right hand side.