“Basically, before indie games were cool, there was Limbo. I wont say it was the original indie game when it was first released on Xbox Live Arcade in 2010, but its pretty close. In the same way that Super Mario Bros. is the grandfather of modern platformers, Limbo is one of the grandfathers of the modern mass-market indie title. Its success has spawned ports to virtually every major system to date, including mobile devices,” writes Kyle at Game Freaks 365.
Source: N4G PC Limbo Review