  Here we concisely review the nonminimal coupling dynamics of a single scalar
field in the context of purely affine gravity and extend the study to
multifield dynamics. The coupling is performed via an affine connection and its
associated curvature without referring to any metric tensor. The latter arises
a posteriori and it may gain an emergent character like the scale of gravity.
What is remarkable in affine gravity is the transition from nonminimal to
minimal couplings which is realized by only field redefinition of the scalar
fields. Consequently, the inflationary models gain a unique description in this
context where the observed parameters, like the scalar tilt and the
tensor-to-scalar ratio, are invariant under field reparametrization. Overall,
gravity in its affine approach is expected to reveal interesting and rich
phenomenology in cosmology and astroparticle physics.
