Hello. I want to make a mobile iOS game like summoners war but more PvP focused and you can loot players. So it’s not full on mmo but still have player to player interactions. What are some must dos for mobile app development and can you point to some resources such as frameworks/ libraries that can help get me off the ground ASAP? What should I use for my backend ? I am experienced with firebase but if that’s not good enough I’ll learn sql. I’ve read to do everything on the backend. So if a player clicks fight, I’ll calculate the result then send back instructions for animation either win or lose and allocate/ take away items or rewards from losers/winners all in the back end. For example when they click fight, instead of using client incoming data, I fetch data from the backend first. Essentially, user doesn’t send much information other than an action trigger. Should I do SSL pinning? Should response from my server be encrypted ? Should I implemented encryption on all sever communications ? Even when client clicks fight? What database or backend do you recommend to me get started asap? I may use firebase cloud functions for my APIs.