When you boot up the Free version, you expect a low-poly tub and some generic lo-fi beats. What you get is an aggressive commitment to hydro-thermal physics. The water in SP Furo 22 doesn't just look wet; it behaves. It laps against the porcelain sides of the virtual tub with a rhythmic persistence that tricks the inner ear.
Many software providers release a core engine for free. Under this model, would include: