Impulse, stylised impulse, is a semi-serious HL2 roleplay community in Garry's Mod. Stemming from former community Apex Roleplay after its closure in 2018, impulse's high-population server is predominantly English-speaking.

Impulse opened on the 22nd of November 2019 and runs a custom, closed-source framework and schema, which bears the same name, and has been regularly updated since launch. Impulse is developed and run by Vin, who also was one of the owners of Apex Roleplay.

Community content is available under CC-BY-SA unless otherwise noted.