There's a race to the bottom in the video game industry to farm content to "best cost countries". Most man-hours aren't spent on engineering problems but on gameplay and asset generation.
The Chinese industry is even more brutal in terms of the race to the bottom. Purchasing power is much lower than in the west and there's barely any export opportunities, so the only way to make money is to crank out "good enough" games by having the same engine run with different assets.