Generally, open-ended "feedback" on just about anything -- game ideas, actual game products, intended mechanical or technical designs -- falls under either the category of "primarily opinion based" or the category of "too broad" and is thus off-topic here.
Questions that propose "this is how I'm going to solve , is this good/bad/any ideas?" fall into this category, but are generally easier to edit into something on-topic by rephrasing them as "how do I solve " and encouraging the asker to re-post their intended solution as an answer, submitting it to feedback and votes.
It doesn't seem possible to do this in a general way with "what do you think of my game" questions, so I think you're better off asking them elsewhere (either on SE as noted in some comments, or on another site altogether like GDNet.