Both Low poly & High poly rocks are available here. I have uploaded both Eevee and cycles render pic.
*Low-poly: *
Rock1-=936polygons & 617 vertices , Rock2-976polygon & 668vertices
Rock3 =885polygons & 649 vertices .Rock9 =888 polygons & 591vertices .Rock4 =.947 polygons & 1364vertices Rock10 = 1036 polygons & 625vertices
Rock5 =955 polygons & 600 vertices Rock11 =914polygons & 632vertices
Rock6 =912polygons & 674 vertices.Rock7 =961polygons & 910 vertices
Rock8 =953polygons & 1249Vertices Rock12 = 935 polygons & 686Vertices
...*High-poly: *
Rock1= 24045 Polygons & 26845Vertices Rock7 =25466 Polygons & 21231Vertices .Rock2 = 33976 Polygons & 22682Vertices Rock8 =35385Polygons & 28417Vertices .Rock3 =14459 Polygons &11829Vertices Rock9 =32968 Polygons & 25121Vertices
Rock4 =38576 Polygons & 33877Vertices Rock10= 25594 Polygons & 17470Vertices Rock5 =31758 Polygons & 19006Vertices Rock11 =9524Polygons & 13538Vertices Rock6 = 18007Polygons & 15278Vertices Rock12 = 30558Polygons & 22931 Vertices For the high-poly/low-poly rocks , if you need less polygons or if you need different rock textures or more different types of rock collections just let me know.I would be very happy to help you.Thank you.