Real Parkour Simulator is a 3D parkour game about movement flow: running, vaulting and climbing through an urban environment where the route is up to you rather than laid out on rails.
That freedom is the appeal — the good runs are the ones where you chain several movements without stopping, which the game leaves you to discover rather than teaching.
Moving through an environment efficiently using running, jumping, vaulting and climbing — treating obstacles as things to flow over rather than around.
No — you choose your own route through the environment, which is where most of the game's interest comes from.
Yes, though it's a 3D game — close other tabs on older hardware.