An oscillating piston machine comprises a housing in which a first and at least a second piston are arranged, which pistons can rotate together in the housing about a rotational axis which is fixed to the housing and which pistons, as they rotate about the rotational axis, carry out reciprocating oscillating movements in opposite directions to one another about an oscillation axis which extends perpendicularly to the rotational axis and through the center of the housing, wherein the first piston has a first end face and the at least second piston has a second end face which faces the first end face, wherein the end faces bound a working chamber. The pistons are arranged in such a way that the rotational axis extends through the working chamber.