How can I make particles receive light? (Not HDRP or LWRP)

Hey folks. Working on a VR project (forward render) where it would be useful to perceive light being cast over the player's shoulder and onto smoke particles in front of the player.

I'm running into trouble getting this to work with Shuriken - I'm playing around with the Renderer and Light settings, but nothing seems to be getting me close to my target (I can't even seem to get the particles to cast shadows!). Can anybody suggest a solution? Many thanks in advance.