That's what they do. They add additional layers on top of the sandbox like jailing. You can jail your sandboxes, but it's not so easy to make that a multi-platf

That's what they do. They add additional layers on top of the sandbox like jailing. You can jail your sandboxes, but it's not so easy to make that a multi-platform solution for gaming. I think for games I would just stick to a fast interpreter and apply some generally appropriate measures to discourage timing attacks.