There's a problem here:
There's much more competition on Steam than 3DS, not only in terms of offered titles but also in similar 2D indie games. Escape Goat is not on 3DS, They Bleed Pixels is not on 3DS, Bleed is not on 3DS and you can add a large etc of games. The other problem is pricing is more competitive but meanwhile in 3DS thanks to the curated premium priced setup from Nintendo an 10$ price range is acceptable (and lack of general offers help this), there isn't much indie 2D effort quality in lower prices on 3DS, meanwhile on Steam while 10$ is not a high price and all there are several similar games offered at much lower prices that will steal a lot of sales from you and will make these jumps on sales so high once you offer a discount.