The Doomsday Organization is group in Armored Core: Project Phantasma that serves as the primary antagonist.


Little is known about this clandestine group other than that they are responsible for the creation and development of the infamous Project Phantasma and are supported with funding from several corporations. This group makes few if any appearances, and stays mostly behind the scenes, directing Stinger to take action. With the destruction of the final Phantasma unit, the organization simply dissolves.

In the Armored Core: Nexus Revolution disc, The player can now do missions for Doomsday, which involve protecting their interests or participating in research tests.


  • In the original Japanese version of Armored Core: Project Phantasma, Doomsday Organization is referred to as Wednesday Organization instead.

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