Darkest of Days is a single-player, first-person shooter game developed by the company, 8Monkey Labs. It was first released in September of 2009 and follows the exploits of a character whose mission it is to save important historical figures from dying, thereby changing the course of history. Some of the battles featured in this game are Custer’s Last Stand, eruption of Mt. Vesuvius, and World War II among others. The player takes on the role of Alexander Morris, a Battle of Little Big Horn solider who is equipped with a wide selection of weapons used in both historical and contemporary times. There are two types of individuals that need to be rescued from impending death: one comes with an orange-colored aura and needs to be brought back to the appropriate time locus, and the other is a random character that comes with a blue-colored aura.
The player must avoid killing three blue-aura characters lest he is visited by the Opposition. This group will consider the deaths a disturbance, which will prompt them to track down Morris and kill him. The player must utilize modern weaponry to defeat the Opposition as they are equipped with superior technology. Once they are eliminated, the player can take their weapons to use in subsequent missions.