Play Here: Gem Tower Defense

Very solid game! It appears to be balanced properly, the AI works, you get a lot of upgrade combo options and Gem TD uses a waypoint system. I believe the game concept comes from the old Poker TD from WC3 but I’m not 100% sure about that.

Many flash TDs build outside the path TDs are great but few use a waypoint system that greatly increases your strategic options. Without waypoints you might be able to juggle (prevented in gem td btw) but essentially you have one maze which creeps travel from the beginning to the end. With waypoints it is possible to construct a system that requires wave to travel through your maze multiple times.

The maze in the graphic requires monsters to travel through it 6 times and it is still not optimal by any means. I could expand it out more, build better gem combos, upgrade differently…there are really a lot of options.