games going down steps
I built a sortof monorail that looks like an extension ladder, it's 11 ft long for 10 steps, it angles at each end to compensate from the top step where the game first goes over and at the bottom where the game reaches the basement floor.
The rail boards are hickory hardwood floor boards that stand up widthwise so the wheels from the aluminum dolly ride on the outside of them, when the cart reaches the basement floor the wheels take over the weight. The game will tend to slide down but one person at each end of the game works fine, no problems. there is no banging on the nosing of the stairs, it just glides down..and this goes anywhere like a ladder, just support the weight and it's easier on the back that strait carrying.
if you have more steps, build a longer one.
I use the aluminum cart from depot that has the smaller hardened rubber wheels with the wrap around strap, pricy but a good investment in game moving.