A vehicular planetary gear train may include: a first input shaft; a second parallel shaft; a first planetary gear set including a first element selectively connected to the first shaft, a second element selectively connected to the first shaft and/or a transmission housing, and a third output element; a second planetary gear set including a fourth element connected to the second element, a fifth element connected to the third element and directly connected to an output gear, and a sixth element selectively connected to the first shaft through two paths; four transfer gears connecting the fourth and fifth elements respectively to the second and third elements, and connecting the sixth element to the first shaft through two paths; and frictional elements selectively connecting the first, second, and sixth elements to the first shaft, and a brake selectively connecting the second element to the transmission housing.