Defense Grid The Awakening (Mac CD)

High Replayability. There are approximately 8 hours of gameplay in the main storyline, and many hours of play in challenge modes that give players unique starting conditions and objectives. Each game level is very replayable, and can be solved in many different ways, with increasing rewards for improved efficiency Wide Variety of Enemies. Over the course of the game, players battle 15 different enemy types that become increasingly stronger, and employ a variety of strategies in an attempt to bypass the player's defenses. As the levels progress, the enemies become tougher and more difficult to defeat 20 Unique Levels. Defense Grid: The Awakening has 20 unique environments, each with a different placement of roads, tower build locations, and open areas to plan a strategy around Numerous Tower Options and Upgrades. There are 10 different tower types with 3 levels of capability each. Each tower has unique trade offs that affect ideal placement, such as line-of-sight attack or ballistic trajectory fire. Some towers improve other nearby towers, and some are ideal at specific locations, such as a rear guard tower that unleashes a devastating attack Achievements. Successfully completing each level provides a bronze achievement award. Additional goals provide silver and gold awards for a particular level. A novice player may be able to survive the onslaught, but only an experienced player will be able to get all of the gold achievements, Platforms: Mac OS X