  The advent of topological phases of matter revealed a variety of observed
boundary phenomena, such as chiral and helical modes found at the edges of
two-dimensional (2D) topological insulators. Antichiral states in 2D
semimetals, i.e., copropagating edge modes on opposite edges compensated by a
counterpropagating bulk current, are also predicted, but, to date, no
realization of such states in a solid-state system has been found. Here, we put
forward a procedure to realize antichiral states in twisted van der Waals
multilayers, by combining the electronic Dirac-cone spectra of each layer
through the combination of the orbital moir\'e superstructure, an in-plane
magnetic field, and inter-layer bias voltage. In particular, we demonstrate
that a twisted van der Waals heterostructure consisting of graphene/two layers
of hexagonal boron nitride [(hBN)$_2$]/graphene will show antichiral states at
in-plane magnetic fields of 8 T, for a rotation angle of 0.2$^{\circ}$ between
the graphene layers. Our findings engender a controllable procedure to engineer
antichiral states in solid-state systems, as well as in quantum engineered
metamaterials.
