diff --git a/build.gradle b/build.gradle
index 67ab83782b..b743d32379 100644
--- a/build.gradle
+++ b/build.gradle
@@ -316,6 +316,5 @@ project(":net"){
     dependencies{
         compile project(":core")
         compile "org.lz4:lz4-java:1.4.1"
-        compile 'com.github.Anuken:WaifUPnP:05eb46bc577fd7674596946ba288c96c0cedd893'
     }
 }
diff --git a/desktop-sdl/src/io/anuke/mindustry/desktopsdl/steam/ClientSteam.java b/desktop-sdl/src/io/anuke/mindustry/desktopsdl/steam/ClientSteam.java
new file mode 100644
index 0000000000..d31bb75748
--- /dev/null
+++ b/desktop-sdl/src/io/anuke/mindustry/desktopsdl/steam/ClientSteam.java
@@ -0,0 +1,86 @@
+package io.anuke.mindustry.desktopsdl.steam;
+
+import com.codedisaster.steamworks.*;
+import com.codedisaster.steamworks.SteamNetworking.*;
+import io.anuke.arc.collection.*;
+import io.anuke.arc.util.*;
+import io.anuke.mindustry.net.Net.*;
+import io.anuke.mindustry.net.*;
+
+import java.nio.*;
+
+public class ClientSteam implements SteamNetworkingCallback{
+    private SteamNetworking steam;
+    private ByteBuffer buffer = ByteBuffer.allocateDirect(1024 * 128);
+    //maps steam ID -> valid net connection
+    private IntMap<SteamConnection> connections = new IntMap<>();
+
+    public ClientSteam(){
+        steam = new SteamNetworking(this);
+
+        new Thread(() -> {
+            int length;
+            SteamID from = new SteamID();
+            while((length = steam.isP2PPacketAvailable(0)) != 0){
+                try{
+                    buffer.position(0);
+                    steam.readP2PPacket(from, buffer, 0);
+                }catch(SteamException e){
+                    e.printStackTrace();
+                }
+            }
+        }){{
+            setDaemon(true);
+        }}.start();
+    }
+
+    @Override
+    public void onP2PSessionConnectFail(SteamID steamIDRemote, P2PSessionError sessionError){
+        Log.info("{0} has disconnected: {1}", steamIDRemote.getAccountID(), sessionError);
+    }
+
+    @Override
+    public void onP2PSessionRequest(SteamID steamIDRemote){
+        steam.acceptP2PSessionWithUser(steamIDRemote);
+    }
+
+    class SteamConnection extends NetConnection{
+        public final SteamID connection;
+
+        public SteamConnection(int id, String address, SteamID connection){
+            super(id, address);
+            this.connection = connection;
+        }
+
+        @Override
+        public boolean isConnected(){
+            return false;//connection.isConnected();
+        }
+
+        @Override
+        public void send(Object object, SendMode mode){
+            //TODO
+            /*
+            try{
+                if(mode == SendMode.tcp){
+                    connection.sendTCP(object);
+                }else{
+                    connection.sendUDP(object);
+                }
+            }catch(Exception e){
+                Log.err(e);
+                Log.info("Error sending packet. Disconnecting invalid client!");
+                connection.close();
+
+                ArcNetServer.KryoConnection k = getByKryoID(connection.getID());
+                if(k != null) connections.remove(k);
+            }*/
+        }
+
+        @Override
+        public void close(){
+            //TODO
+            //if(connection.isConnected()) connection.close();
+        }
+    }
+}
diff --git a/net/src/io/anuke/mindustry/net/ArcNetServer.java b/net/src/io/anuke/mindustry/net/ArcNetServer.java
index ed8496a8e2..de3ce52203 100644
--- a/net/src/io/anuke/mindustry/net/ArcNetServer.java
+++ b/net/src/io/anuke/mindustry/net/ArcNetServer.java
@@ -1,11 +1,9 @@
 package io.anuke.mindustry.net;
 
-import com.dosse.upnp.*;
 import io.anuke.arc.*;
 import io.anuke.arc.collection.*;
 import io.anuke.arc.net.*;
 import io.anuke.arc.util.*;
-import io.anuke.mindustry.*;
 import io.anuke.mindustry.net.Net.*;
 import io.anuke.mindustry.net.Packets.*;
 import net.jpountz.lz4.*;
@@ -121,18 +119,6 @@ public class ArcNetServer implements ServerProvider{
 
     @Override
     public void host(int port) throws IOException{
-        //attempt to open default ports if they're not already open
-        //this only opens the default port due to security concerns (?)
-        if(port == Vars.port){
-            async(() -> {
-                try{
-                    if(!UPnP.isMappedTCP(port)) UPnP.openPortTCP(port);
-                    if(!UPnP.isMappedUDP(port)) UPnP.openPortUDP(port);
-                }catch(Throwable ignored){
-                }
-            });
-        }
-
         lastconnection = 0;
         connections.clear();
         missing.clear();