An internal combustion engine for operation on at least partly gaseous fuel under adjusted flow dynamics, the engine comprising: an engine block cylinder unit section providing a main combustion chamber; and a cylinder head covering the main combustion chamber, the cylinder head comprising an intake channel for providing a charge air-gaseous fuel mixture through an intake opening into the main combustion chamber and an ignition source for igniting the charge air-gaseous fuel mixture within the main combustion chamber, the ignition source being configured for providing ignition jets into the main combustion chamber along injection directions (V J), wherein at least one of the injection directions comprises an inclination component with respect to a respective radial direction associated with an origin position of the ignition jet, and the ignition source comprises a chamber surrounded by a wall structure with a plurality of flow transfer passages formed in the wall structure to fluidly connect the chamber with the main combustion chamber, and a central axis of at least one of the flow transfer passages is inclined by an azimuthal inclination angle (α) with respect to the radial direction associated with respective the flow transfer passage and the origin position of an ignition jet and the central axis of the flow transfer passage is associated with an outlet side of the respective flow transfer passage, characterized in that the internal combustion engine is further configured to generate a flow system of the charge air-gaseous fuel mixture within the main combustion chamber, the flow system including at least one counter flow section that at least partly spatially overlaps with a respective one of the ignition jets and has a flow direction (V F) directed at least partly against the respective injection direction (V J). an engine block cylinder unit section providing a main combustion chamber; and a cylinder head covering the main combustion chamber, the cylinder head comprising an intake channel for providing a charge air-gaseous fuel mixture through an intake opening into the main combustion chamber and an ignition source for igniting the charge air-gaseous fuel mixture within the main combustion chamber, the ignition source being configured for providing ignition jets into the main combustion chamber along injection directions (V J), wherein at least one of the injection directions comprises an inclination component with respect to a respective radial direction associated with an origin position of the ignition jet, and the ignition source comprises a chamber surrounded by a wall structure with a plurality of flow transfer passages formed in the wall structure to fluidly connect the chamber with the main combustion chamber, and a central axis of at least one of the flow transfer passages is inclined by an azimuthal inclination angle (α) with respect to the radial direction associated with respective the flow transfer passage and the origin position of an ignition jet and the central axis of the flow transfer passage is associated with an outlet side of the respective flow transfer passage, characterized in that the internal combustion engine is further configured to generate a flow system of the charge air-gaseous fuel mixture within the main combustion chamber, the flow system including at least one counter flow section that at least partly spatially overlaps with a respective one of the ignition jets and has a flow direction (V F) directed at least partly against the respective injection direction (V J).