It would be cool if one day Shattered Pixel Dungeon got a Mode LAN Multiplayer, but the new 2.5.0 is already cool.
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Unfortunately multiplayer isn’t really feasible to add. Aside from all of the networking code I would need to add (even on LAN), the game itself is entirely designed around one player. Most of the game’s systems would break or need serious changes to work in multiplayer, and even then gameplay would be very awkward as you would spend most of your time waiting for other players to take their turns.