In GTA IV and GTA: Chinatown Wars, it is sold in the Steinway Beer Garden and Lucky Winkles, while advertisements can be found around the state. There is also a Blarneys Stout's Distribution Center in Port Tudor (just left of the port south entry). In GTA V, Blarneys is sold in Rob's Liquor, 24/7 and LTD stores.
In GTA Online, a Blarneys Beer Hat was supposed to be obtainable through special crates as part of the Independence Day Special, however, because of a glitch, it and a second hat (J's Lager) became unavailable for pick-up through normal means. Later, the Blarney Beer Hat could be unlocked for players who logged in during the weekend of the GTA Online Bonuses (March 2020 Part 3) event.
The beverage is most likely a parody of Guinness due to its Irish theme. On billboards, a glass of it is pictured being grasped by a cigarette-holding puffin, with the slogan "Have a puff'n a pint", parodying Guinness' use of a toucan and Irish slang ("pint" referring to a filled glass of beer and "puff" to smoking a cigarette). The year of the beverage's founding (1758) is also very close to that of Guinness, which was founded in 1759.
- The beer is most likely named after the famous Blarney Stone in County Cork, south-west Ireland.
- The Blarneys logo uses the Victorian Std typeface.