I think the Americans overrate their own performance on the battlefield, though I don't think that the American economic involvement is given enough praise. The war would still have been won without the US, but it would have been a much more costly conflict without them.
Before someone brings up the pacific I'd like to point to the Soviet contribution, specifically them conquering Manchuria (Roughly western Europe combined in terms of size) and North Korea (reason the dickweed republic of Dear Great Leader and Holy Father, All-Knowing Saviour and Eternal President Kim Il Sung is annoying us today) and without the nukes the Soviets would still just have overrun Japan like they had Manchuria, regardless of losses.
As for why we don't see the whole thing in games anymore; The Allied land-war performance was abysmal from start until end. No need for the depressing mess when you can have superhuman commandos butchering 50 trillion Arabs and Russians with no context and no pretense to realism.
Before someone brings up the pacific I'd like to point to the Soviet contribution, specifically them conquering Manchuria (Roughly western Europe combined in terms of size) and North Korea (reason the dickweed republic of Dear Great Leader and Holy Father, All-Knowing Saviour and Eternal President Kim Il Sung is annoying us today) and without the nukes the Soviets would still just have overrun Japan like they had Manchuria, regardless of losses.
As for why we don't see the whole thing in games anymore; The Allied land-war performance was abysmal from start until end. No need for the depressing mess when you can have superhuman commandos butchering 50 trillion Arabs and Russians with no context and no pretense to realism.