This document describes Victor Donker's final bachelor project focused on interactive and modular rehabilitation to motivate arm and hand use and training. The project involves developing modular stepping and balancing exercises, 3D prototyping, graphics and interaction design, and guidance and motivation features to create a "physical computer" system. The plan is to improve existing stepping/balancing tiles for delivery to a hospital, create enough modules to test the full system, develop a data saving system and output, and create a research/business plan.