diff --git a/.gitignore b/.gitignore
index c6f583e4..a9392b83 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,4 +26,6 @@ build/Release
 # Dependency directory
 # https://docs.npmjs.com/misc/faq#should-i-check-my-node-modules-folder-into-git
 node_modules
-Factorio*
\ No newline at end of file
+Factorio*
+/factorio
+/instances
diff --git a/client.js b/client.js
index ef59cc74..a7c8ee97 100644
--- a/client.js
+++ b/client.js
@@ -1,35 +1,125 @@
 var fs = require('fs');
 var needle = require("needle");
+var child_process = require('child_process');
+
 // require config.json
 var config = require('./config');
+
+var instance = process.argv[2];
+if(!instance){
+	console.error("Usage: node client.js [instance name]")
+	process.exit(1)
+}
+if(!fs.existsSync("./instances/")){
+    fs.mkdirSync("instances");
+}
+var instancedirectory = './instances/'+instance;
+if (!fs.existsSync(instancedirectory)){
+    fs.mkdirSync(instancedirectory);
+    fs.mkdirSync(instancedirectory + "/script-output/");
+    fs.writeFileSync(instancedirectory + "/script-output/output.txt", "")
+    fs.writeFileSync(instancedirectory + "/script-output/orders.txt", "")
+    fs.writeFileSync(instancedirectory + "/script-output/txbuffer.txt", "")
+    fs.mkdirSync(instancedirectory + "/mods/")
+    fs.symlinkSync('../../../clusterio_0.0.3',instancedirectory + "/mods/clusterio_0.0.3",'junction')
+    fs.writeFileSync(instancedirectory + "/config.ini", "[path]\r\n\
+read-data=__PATH__executable__\\..\\..\\data\r\n\
+write-data=__PATH__executable__\\..\\..\\..\\instances\\"+instance+"\r\n\
+	");
+
+	var instconf = {
+		"factorioPort": Math.floor(Math.random()*65535),
+		"clientPort": Math.floor(Math.random()*65535),
+		"clientPassword": Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 8),
+	}
+	console.log(instconf)
+	fs.writeFileSync(instancedirectory + "/config.json", JSON.stringify(instconf, null, 4));
+
+	var serversettings = {
+		"name": config.username +"'s clusterio "+instance,
+		"description": config.description,
+		"tags": ["clusterio"],
+		"max_players": "20",
+		"visibility": "lan",
+		"username": config.username,
+		"token": config.usertoken,
+		"game_password": config.game_password,
+		"verify_user_identity": config.verify_user_identity,
+		"admins":[config.username],
+		"allow_commands":config.allow_commands,
+		"autosave_interval":10,
+		"autosave_slots":5,
+		"afk_autokick_interval":0,
+		"auto_pause":config.auto_pause
+	}
+	fs.writeFileSync(instancedirectory + "/server-settings.json", JSON.stringify(serversettings, null, 4));
+
+	var createSave = child_process.spawnSync(
+		'./' + config.factorioDirectory + '/bin/x64/factorio.exe',
+		[
+			'-c',instancedirectory+'/config.ini',
+			'--create',instancedirectory+'/save.zip',
+		]
+	)
+}
+
+var instanceconfig = require(instancedirectory+'/config');
+
+
+process.on('SIGINT', function() {
+    console.log("Caught interrupt signal");
+    //serverprocess.stdin.write('/quit')
+});
+
+
+//var serverprocess = child_process.exec(commandline)
+var serverprocess = child_process.spawn(
+  './' + config.factorioDirectory + '/bin/x64/factorio.exe',
+  [
+    '-c',instancedirectory+'/config.ini',
+    '--start-server',instancedirectory+'/save.zip',
+    '--rcon-port',instanceconfig.clientPort,
+    '--rcon-password',instanceconfig.clientPassword,
+    '--server-settings',instancedirectory+'/server-settings.json',
+    '--port',instanceconfig.factorioPort
+  ],
+  {
+    'stdio':['pipe','pipe','pipe']
+  }
+)
+
+serverprocess.on('close', (code) => {
+  console.log(`child process exited with code ${code}`);
+  process.exit();
+});
+
+serverprocess.stdout.on('data', (chunk) => {
+  console.log('OUT: '+chunk);
+})
+
+serverprocess.stderr.on('data', (chunk) => {
+  console.log('ERR: '+chunk);
+})
+
 // connect us to the server with rcon
 // IP, port, password
 var Rcon = require('simple-rcon');
 var client = new Rcon({
-	host: config.clientIP,
-	port: config.clientPort,
-	password: config.clientPassword,
+	host: 'localhost',
+	port: instanceconfig.clientPort,
+	password: instanceconfig.clientPassword,
 	timeout: 0
-}).connect();
+});
 
-if (!fs.existsSync(config.factorioDirectory)){
-    console.error("FATAL ERROR: config.factorioDirectory DOES NOT EXIST, PLEASE UPDATE CONFIG.JSON");
-	process.exit(1);
-}
-// make sure we got the files we need
-if (!fs.existsSync(config.factorioDirectory + "/script-output/")){
-    fs.mkdirSync(config.factorioDirectory + "/script-output/");
-}
-if (!fs.existsSync(config.factorioDirectory + "/script-output/")){
-	fs.writeFileSync(config.factorioDirectory + "/script-output/output.txt", "")
-}
-fs.writeFileSync(config.factorioDirectory + "/script-output/orders.txt", "")
-fs.writeFileSync(config.factorioDirectory + "/script-output/txbuffer.txt", "");
+// wait a few seconds to let the server finish starting before connecting rcon
+//TODO: catch '2.033 Info RemoteCommandProcessor.cpp:97: Starting RCON interface at port 35002' from stdout maybe?
+setTimeout(() => { client.connect(); }, 5000);
 
 client.on('authenticated', function() {
 	console.log('Authenticated!');
 }).on('connected', function() {
 	console.log('Connected!');
+	getID();
 }).on('disconnected', function() {
 	console.log('Disconnected!');
 	// now reconnect
@@ -39,22 +129,45 @@ client.on('authenticated', function() {
 // set some globals
 confirmedOrders = [];
 lastSignalCheck = Date.now();
+
+// world IDs ------------------------------------------------------------------
+function getID() {
+	var payload = {
+		time : Date.now(),
+		rconPort : instanceconfig.clientPort,
+		rconPassword : instanceconfig.clientPassword,
+		serverPort : instanceconfig.factorioPort,
+		unique : instanceconfig.clientPassword.hashCode()
+	}
+	require('getmac').getMac(function(err,mac){
+		if (err) throw err
+		payload.mac = mac
+		console.log(payload)
+		needle.post(config.masterIP + ":" + config.masterPort + '/getID', payload, function(err, response, body){
+			if(response && response.body) {
+				// In the future we might be interested in whether or not we actually manage to send it, but honestly I don't care.
+				console.log(response.body)
+			}
+	}	);
+	})
+	
+}
 // provide items --------------------------------------------------------------
 // trigger when something happens to output.txt
-fs.watch(config.factorioDirectory + "/script-output/output.txt", function(eventType, filename) {
+fs.watch(instancedirectory + "/script-output/output.txt", function(eventType, filename) {
 	// get array of lines in file
-	items = fs.readFileSync(config.factorioDirectory + "/script-output/output.txt", "utf8").split("\n");
+	items = fs.readFileSync(instancedirectory + "/script-output/output.txt", "utf8").split("\n");
 	// if you found anything, reset the file
 	if(items[0]) {
-		fs.writeFileSync(config.factorioDirectory + "/script-output/output.txt", "")
+		fs.writeFileSync(instancedirectory + "/script-output/output.txt", "")
 	}
 	for(i = 0;i < items.length; i++) {
 		if(items[i]) {
 			g = items[i].split(" ");
 			g[0] = g[0].replace("\u0000", "");
-			console.log("exporting " + JSON.stringify(g));
+			// console.log("exporting " + JSON.stringify(g));
 			// send our entity and count to the master for him to keep track of
-			needle.post(config.masterIP + ":" + config.masterPort + '/place', {name:g[0], count:g[1]}, 
+			needle.post(config.masterIP + ":" + config.masterPort + '/place', {name:g[0], count:g[1]},
 			function(err, resp, body){
 				// console.log(body);
 			});
@@ -64,10 +177,10 @@ fs.watch(config.factorioDirectory + "/script-output/output.txt", function(eventT
 // request items --------------------------------------------------------------
 setInterval(function() {
 	// get array of lines in file
-	items = fs.readFileSync(config.factorioDirectory + "/script-output/orders.txt", "utf8").split("\n");
+	items = fs.readFileSync(instancedirectory + "/script-output/orders.txt", "utf8").split("\n");
 	// if we actually got anything from the file, proceed and reset file
 	if(items[0]) {
-		fs.writeFileSync(config.factorioDirectory + "/script-output/orders.txt", "");
+		fs.writeFileSync(instancedirectory + "/script-output/orders.txt", "");
 		// prepare a package of all our requested items in a more tranfer friendly format
 		var preparedPackage = {};
 		for(i = 0;i < items.length; i++) {
@@ -99,7 +212,7 @@ setInterval(function() {
 			});
 		}
 		// if we got some confirmed orders
-		console.log("Importing " + confirmedOrders.length + " items! " + JSON.stringify(confirmedOrders));
+		// console.log("Importing " + confirmedOrders.length + " items! " + JSON.stringify(confirmedOrders));
 		sadas = JSON.stringify(confirmedOrders)
 		confirmedOrders = [];
 		// send our RCON command with whatever we got
@@ -118,7 +231,7 @@ setInterval(function() {
 			for(i = 0;i<inventory.length;i++) {
 				inventoryFrame[inventory[i].name] = Number(inventory[i].count);
 			}
-			console.log("RCONing inventory! " + JSON.stringify(inventoryFrame));
+			// console.log("RCONing inventory! " + JSON.stringify(inventoryFrame));
 			client.exec("/silent-command remote.call('clusterio', 'receiveInventory', '" + JSON.stringify(inventoryFrame) + "')");
 		}
 	});
@@ -141,11 +254,12 @@ setInterval(function() {
 	// after fetching all the latest frames, we take a timestamp. During the next iteration, we fetch all frames submitted after this.
 	lastSignalCheck = Date.now();
 	
+	// get outbound frames from file and send to master
 	// get array of lines in file, each line should correspond to a JSON encoded frame
-	signals = fs.readFileSync(config.factorioDirectory + "/script-output/txbuffer.txt", "utf8").split("\n");
+	signals = fs.readFileSync(instancedirectory + "/script-output/txbuffer.txt", "utf8").split("\n");
 	// if we actually got anything from the file, proceed and reset file
 	if(signals[0]) {
-		fs.writeFileSync(config.factorioDirectory + "/script-output/txbuffer.txt", "");
+		fs.writeFileSync(instancedirectory + "/script-output/txbuffer.txt", "");
 		// loop through all our frames
 		for(i = 0;i < signals.length; i++) {
 			(function(i){
@@ -167,4 +281,16 @@ setInterval(function() {
 			})(i);
 		}
 	}
-}, 1000)
\ No newline at end of file
+}, 1000)
+
+// simple string hasher
+String.prototype.hashCode = function(){
+	var hash = 0;
+	if (this.length == 0) return hash;
+	for (i = 0; i < this.length; i++) {
+		char = this.charCodeAt(i);
+		hash = ((hash<<5)-hash)+char;
+		hash = hash & hash; // Convert to 32bit integer
+	}
+	return hash;
+}
diff --git a/config.json b/config.json
index d3b3df82..765b35c7 100644
--- a/config.json
+++ b/config.json
@@ -1,12 +1,19 @@
 {
-	"__comment": "",
-	"__comment": "IP and port and password the factorio server runs at for rcon connection",
-	"clientIP": "localhost",
-	"clientPort": "12345",
-	"clientPassword": "123",
 	"__comment": "Where factorio folder. Should be in the same folder as this config file.",
-	"factorioDirectory": "factorio 0.13.9",
+	"factorioDirectory": "factorio",
+	
 	"__comment": "IP the master web server runs at, can be ignored on the master system",
 	"masterIP": "localhost",
-	"masterPort": 8080
-}
\ No newline at end of file
+	"masterPort": 8080,
+	
+	"__comment": "credentials for factorio MP services",
+	"username": "",
+	"usertoken": "",
+	
+	"__comment": "General user settings",
+	"verify_user_identity": true,
+	"auto_pause": false,
+	"allow_commands": "admins-only",
+	"game_password": "",
+	"description": "This server runs Clusterio"
+}
diff --git a/launchEverything.bat b/launchEverything.bat
deleted file mode 100644
index f08a766e..00000000
--- a/launchEverything.bat
+++ /dev/null
@@ -1,5 +0,0 @@
-cd "Factorio_0.13.17"
-@RD /S /Q "temp"
-cd "bin/x64/"
-start factorio.exe --start-server testmap.zip --rcon-port 12345 --rcon-password 123 --server-settings server-settings.json
-pause
\ No newline at end of file
diff --git a/master.js b/master.js
index 47fa55f7..55a86494 100644
--- a/master.js
+++ b/master.js
@@ -26,6 +26,7 @@ db = {};
 db.items = new Datastore({ filename: 'database/items.db', autoload: true });
 db.signals = new Datastore({ filename: 'database/signals.db', autoload: true, inMemoryOnly: true});
 db.signals.ensureIndex({ fieldName: 'time', expireAfterSeconds: 3600 }, function (err) {});
+// db.slaves = new Datastore({ filename: 'database/slaves.db', autoload: true, inMemoryOnly: false});
 
 db.items.additem = function(object) {
 	db.items.findOne({name:object.name}, function (err, doc) {
@@ -42,6 +43,25 @@ db.items.additem = function(object) {
 		}
 	})
 }
+var slaves = {}
+// world ID management
+app.post("/getID", function(req,res) {
+	// request.body should be an object
+	// {rconPort, rconPassword, serverPort, mac, time}
+	// time us a unix timestamp we can use to check for how long the server has been unresponsive
+	// we should save that somewhere and give appropriate response
+	if(req.body){
+		slaves[req.body.unique] = req.body
+		console.log("Slave: " + req.body.mac + " : " + req.body.serverPort)
+	}
+});
+
+// endpoint for getting information about all our slaves
+app.get("/slaves", function(req, res) {
+	res.header("Access-Control-Allow-Origin", "*");
+	res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+	res.send(slaves)
+});
 
 // endpoint to send items to
 app.post("/place", function(req, res) {
diff --git a/package.json b/package.json
index 10e2135f..cb9a0d13 100644
--- a/package.json
+++ b/package.json
@@ -13,11 +13,14 @@
   "license": "ISC",
   "dependencies": {
     "body-parser": "^1.15.2",
+    "child_process": "^1.0.2",
     "express": "^4.14.0",
     "fs": "0.0.2",
+    "getmac": "^1.2.1",
     "mkdirp": "^0.5.1",
     "nedb": "^1.8.0",
     "needle": "^1.1.0",
+    "portfinder": "^1.0.9",
     "simple-rcon": "^0.3.1"
   }
 }
diff --git a/server-settings.json b/server-settings.json
deleted file mode 100644
index 6e6009ff..00000000
--- a/server-settings.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  "name": "Name of the game as it will appear in the game listing",
-  "description": "Description of the game that will appear in the listing",
-  "tags": ["game", "tags"],
-  "max_players": "0",
-
-  "_comment_visibility": ["public: Game will be published on the official Factorio matching server",
-                          "lan: Game will be broadcast on LAN",
-                          "hidden: Game will not be published anywhere"],
-  "visibility": "public",
-
-  "_comment_credentials": "Your factorio.com login credentials. Required for games with visibility public",
-  "username": "",
-  "password": "",
-
-  "_comment_token": "Authentication token. May be used instead of 'password' above.",
-  "token": "",
-
-  "game_password": "",
-
-  "_comment_verify_user_identity": "When set to true, the server will only allow clients that have a valid Factorio.com account",
-  "verify_user_identity": false
-}
diff --git a/static/index.html b/static/index.html
index c734eedf..4386f494 100644
--- a/static/index.html
+++ b/static/index.html
@@ -20,6 +20,9 @@
 		<div id="production-menu" onclick="display('production');" class="button-black menuItem">
 			<p>Production</p>
 		</div>
+		<div id="slaves-menu" onclick="display('slaves');" class="button-black menuItem">
+			<p>Slaves</p>
+		</div>
 	</div>
 	<div id="body">
 		<div id="storage">
@@ -35,5 +38,11 @@
 			</div>
 			<canvas id="productionChart" width="400" height="150"></canvas>
 		</div>
+		<div id="slaves">
+			<h2>Slaves</h2>
+			<div id="display">
+				
+			</div>
+		</div>
 	</div>
 </body>
\ No newline at end of file
diff --git a/static/main.js b/static/main.js
index 319db5b2..86b02406 100644
--- a/static/main.js
+++ b/static/main.js
@@ -51,6 +51,7 @@ function drawcontents(data) {
 }
 
 // handle the navigation buttons
+currentPage = ""
 function display(page) {
 	var pages = document.querySelector("#body").childNodes;
 	for(i=0;i<pages.length;i++){
@@ -60,6 +61,7 @@ function display(page) {
 	}
 	if(typeof page == "string" && document.querySelector("#" + page)) {
 		document.querySelector("#" + page).style.display = "block";
+		currentPage = page;
 	}
 }
 
@@ -95,22 +97,24 @@ function drawcharts() {
 	}
 	// this is ugly, don't judge me
 	var updateData = function(oldData){
-		//console.log(piedata)
-		var labels = oldData["labels"];
-		var dataSetA = oldData["datasets"][0]["data"];
-		var dataSetB = oldData["datasets"][1]["data"];
-		
-		labels.shift();
-		count++;
-		labels.push(count.toString());
-		// this is where we generate new data
-		var newDataA =  piedata[0].value - piedataOld[0].value;
-		var newDataB = piedata[1].value - piedataOld[1].value;
-		// not quite sure how this works, where is dataSetA placed in data/the graph?
-		dataSetA.push(newDataA);
-		dataSetB.push(newDataB);
-		dataSetA.shift();
-		dataSetB.shift();
+		if(piedataOld[0]){
+			//console.log(piedata)
+			var labels = oldData["labels"];
+			var dataSetA = oldData["datasets"][0]["data"];
+			var dataSetB = oldData["datasets"][1]["data"];
+			
+			labels.shift();
+			count++;
+			labels.push(count.toString());
+			// this is where we generate new data
+			var newDataA =  piedata[0].value - piedataOld[0].value;
+			var newDataB = piedata[1].value - piedataOld[1].value;
+			// not quite sure how this works, where is dataSetA placed in data/the graph?
+			dataSetA.push(newDataA);
+			dataSetB.push(newDataB);
+			dataSetA.shift();
+			dataSetB.shift();
+		}
 	};
 	
 	// Not sure why the scaleOverride isn't working...
@@ -144,13 +148,17 @@ setTimeout(function(){
 	drawcharts();
 },10)
 
-var piedata = false;
+var piedata = {};
+var piedataOld = {};
+// get cluster inventory from master
 setInterval(function() {
 	var xmlhttp = new XMLHttpRequest();
 	xmlhttp.onreadystatechange = function() {
 		if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
 			data = JSON.parse(xmlhttp.responseText);
-			drawcontents(data);
+			if(currentPage = "storage"){
+				drawcontents(data);
+			}
 			// render our piechart with up to date information
 			// items-in-network-chart
 			if(piedata) {
@@ -181,16 +189,34 @@ setInterval(function() {
 	xmlhttp.open("GET", "inventory", true);
 	xmlhttp.send();
 }, 500)
+// get all slaves recently connected to master
+Date.prototype.yyyymmdd = function() { // http://stackoverflow.com/questions/3066586/get-string-in-yyyymmdd-format-from-js-date-object
+	var mm = this.getMonth() + 1; // getMonth() is zero-based
+	var dd = this.getDate();
+	return [this.getFullYear(), !mm[1] && '0', mm, !dd[1] && '0', dd].join(''); // padding
+};
+var date = new Date();
+setInterval(function() {
+	var xmlhttp = new XMLHttpRequest();
+	xmlhttp.onreadystatechange = function() {
+		if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
+			var slaveData = JSON.parse(xmlhttp.responseText);
+			var HTML = "<p>Latest connections:</p>"
+			for(i=0;i<Object.keys(slaveData).length;i++){
+				var key = Object.keys(slaveData)[i]
+				// Date.getYear.getmonth.getDay
+				HTML += "<div class='slaveBox'><h2>ID: " + slaveData[key].unique + "</h2><p>Last seen: "+date.yyyymmdd(slaveData[key].time)+"</p><p>Port: "+slaveData[key].serverPort+"</p><p>Host: "+slaveData[key].mac+"</p></div>"
+			}
+			document.querySelector("#slaves > #display").innerHTML = HTML
+		}
+	}
+	xmlhttp.open("GET", "slaves", true);
+	xmlhttp.send();
+}, 500)
 
 // image data
+// key is the name of the item in the database, value is the name of the image on wiki.factorio.com/images/*
 var imagedata = {
-	["raw-wood"]: "Raw-wood",
-	["alien-artifact"]: "Alien-artifact",
-	["heavy-oil"]: "Heavy-oil",
-	["engine-unit"]: "Engine-unit",
-	["electric-engine-unit"]: "Electric-engine-unit",
-	["flying-robot-frame"]: "Flying-robot-frame",
-	["alien-science_pack"]: "Alien-science-pack",
 	["empty-barrel"]: "Barrel-empty",
 	["transport-belt"]: "Basic-transport-belt",
 	["underground-belt"]: "Basic-transport-belt-to-ground",
@@ -224,5 +250,4 @@ var imagedata = {
 	["piercing-shotgun-shells"]: "Piercing-shotgun-shell",
 	["accumulator"]: "Basic-accumulator",
 	["beacon"]: "Basic-beacon",
-	
 }
diff --git a/static/style.css b/static/style.css
index 995fcd40..d2a2fc76 100644
--- a/static/style.css
+++ b/static/style.css
@@ -16,6 +16,9 @@
 #body {
 	margin-left:200px;
 }
+#body > div {
+	display:none;
+}
 #contents {
 	width:300px;
 }
@@ -30,6 +33,22 @@
 #contentGraph {
 	float:left;
 }
+/* Slave stuff */
+.slaveBox {
+	float:left;
+	width:200px;
+	height:110px;
+	background-color:#EEE;
+	border-radius: 10px;
+	margin-left:5px;
+	margin-right:5px;
+}
+.slaveBox > p {
+	margin:5px;
+}
+.slaveBox > h2 {
+	margin:5px;
+}
 .button-black {
 	width:100%;
 	height:40px;