Okay, but not the best

The difficulty balance seems way off. Some maps are easy, while others appear near impossible even on the easiest setting. Moreover, towers sometimes pause when airborne units appear, causing them to fail to react until the airborne units have nearly passed. If this were a feature to be worked around I would understand, but it only happens sometimes and results in failure on many maps.

All in all, its an okay waste of time, but there are better offerings.

Omnine about Anomaly Defenders