High Moon Studios (formerly Sammy Studios) is a video game development studio based out of California. It is a subsidiary of Activision, and therefore owned by Activision Blizzard.

It is known for the cowboy-vampire-horror-shooter game Darkwatch and a Bourne Conspiracy video game adaptation, both of which were well-received by gamers and critics alike. They developed the Xbox 360, PS3 and PC versions of Transformers: War for Cybertron, released in 2010, and the 2012 sequel, Transformers: Fall of Cybertron, also for Xbox 360, PS3, and PC (the latter of which was developed by Mercenary Technology)

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