Armored Core is a third-person shooter mecha video game series developed by FromSoftware. The series centers on a silent protagonist who takes on work as a mercenary pilot in the far future, operating large robot combat units known as Armored Cores at the behest of corporate and private clients. As the player completes missions for these clients, they gain credits to improve their Armored Core and unlock further opportunities to make money. Some games include an "Arena" mode in which the player fights other Armored Core pilots in head-to-head battles, which can reward the player with further income or prestige.

Several story continuities exist, spread across 13 main games, seven spin-offs, and three remastered re-releases. The first game in the series, Armored Core, was released in 1997, while the most recent, Armored Core VI: Fires of Rubicon, will be released in 2023. The series has been released on the PlayStation, PlayStation 2, PlayStation Portable, PlayStation 3, PlayStation Vita, Xbox 360, and Mobile Phone.