We said "pushes the envelope" earlier, rather than "breaks the mold," because
Defender Chronicles HD is still following the same conventions as most any Tower Defense game, when you really break it down to the essentials. You play a hero that will bring order to the kingdom, leading the charge against an orcish army. Each level is a set piece that pits you against wave after wave of enemy soldiers, intent on storming your hero's fortress. The idea of the hero is used here a bit like we saw in Blizzard's
Warcraft series, where you possess a super-unit capable of influencing the flow of battle. You can level up this hero throughout the game, even equipping items and abilities as you would in a role-playing game, versus the units that are only available during battle. Upgrades applied to units are lost after battle, since they are purchased with the credits gained from fallen enemies. The choice of hero can change how you approach battles, since each type lends itself better to some units than others, and unit selection is critical to winning.
Game choices include several modes, from the overarching Quest to Custom Game Mode, that includes variations on each level such as Freestyle, Extended, Classic, and Classic Extended. The replay value immediately goes through the roof, especially when you consider that the first two listed allow you to bring your hero and items over from the main Quest. Questing for points gives you the opportunity to purchase special items that can enhance your hero, which in turn will enhance some of your units. We thought it was a poor decision to make the descriptions of all the units purchased items, rather than including this with the standard documentation. Knowing nothing about the units you battle with goes against the grain of any Tower Defense game we've ever played, because it just leaves players in the dark. It's important to know which units have some advantage over others, and understand the upgrade paths for each, in order to plan strategy. Other than this small misfire, Defender Chronicles HD has all the right elements to remain on your virtual shelf for a long time.