Take up the mantle of Gem Keeper and protect your glittery hoard from all comers in this official level pack from tower defense maestros Iriysoft. Make strategic use of three different terrains and towers, upgrading your offensive capabilities to stand firm against hordes of powerful enemies, each with their own unique abilities. Just remember, when the going get tough, the tough rain down a fiery hail of massive meteorites.

Tiles! Tiles! My kingdom for a set of appropriately matched takes! IriySoft puts a strange new spin on the defense genre in this match-3 hybrid as you take control of a set of three heroes attempting to fend off hordes of approaching enemies by creating matches on a board that summons reinforcement, heals, or even unleashes special abilities.

Hands off my gems! Well, actually, I guess they're your gems, but you can't blame me for wanting them. Everyone else does, too; from ninja to monks to mages to heroes, everyone is marching on your horde, and it's up to you to utilize three distinct armies at your command to stop them. Gain levels, upgrade abilities, and above all else, protect your treasure!

Viking Defense is a close cousin to Canyon Defense, a re-think of the tower defense genre that was released earlier this year. Game elements are introduced incrementally through a quest system. Once you build certain temples to the Norse gods, you get to use rechargeable powers, like the nuclear super-strike of the hammer Mjolnir. Fans of Canyon Defense will be happy that everything has been improved--the artwork, the map layouts, the weapon variety, and the overall game balance.

Canyon Defense is, not surprisingly, a tower defense game with nice pixel art and that does things a bit differently. First of all, there are no upgrades. What if I told you this heresy against form also has time-based special abilities? And support buildings? If you want some fresh TD with a Mad Max aesthetic, try Canyon Defense.