NATO on 14 May 2017
LCS only sold that much on psp because it, for a while , was the obly way to exploit and hack certan models of psps with certain firmwares, prices for the game even went up so high that retail stores increased the prices to capitalize.
vcs alsold at a time when the psp instal base was already huge, so the sales would be nowhere near as high for the switch (as they are on lcs and vcs at least)
