“In Feb. 2024, Stardew Valley reached 30 million copies sold, and if we assume each copy sold for $15, that means that the game could have generated a revenue of $450 million. A modest 10 percent profit margin puts ConcernedApe’s earnings at $45 million, a number that is likely to increase in the future.” Source: https://dotesports.com/stardew-valley/news/how-much-money-di...
It is likely that that the sub had it's antenna tuned to work well in water while the RC car antenna was tuned for open air. The two different mediums will change the antenna impedance.