You can simulate G-forces in an enclosed simulator (it doesn't work if you can see outside) - you're just limited to 1G. I've flown a 737 simulator which tilte

You can simulate G-forces in an enclosed simulator (it doesn't work if you can see outside) - you're just limited to 1G. I've flown a 737 simulator which tilted back to simulate takeoff thrust. It felt eerily realistic