Wolf is garbage. That may be just my own opinion, but it is a strong opinion. As soon as I see a wolf game show up, I click the "ignore" button. RPGM can be cool, if done right, and with specific types of gaming styles, but to say Ren'Py is limited, compared to RPGM, is a bit off. Each engine has their strengths and weaknesses. But, neither one is better or worse, as a whole. I just will never play a VN through RPGM. (I have seen RPGM games that were kinetic novels and I just laughed and ignored them).