  We study the extreme long-time behavior of the metastable phase of the
three-dimensional Ising model with Glauber dynamics in an applied magnetic
field and at a temperature below the critical temperature. For these
simulations we use the advanced simulation method of projective dynamics. The
algorithm is described in detail, together with its application to the escape
from the metastable state. Our results for the field dependence of the
metastable lifetime are in good agreement with theoretical expectations and
span more than fifty decades in time.
