diff --git a/iosApp/Configuration/Config.xcconfig b/iosApp/Configuration/Config.xcconfig
index f391597..bfde983 100644
--- a/iosApp/Configuration/Config.xcconfig
+++ b/iosApp/Configuration/Config.xcconfig
@@ -1,3 +1,3 @@
-TEAM_ID=
+TEAM_ID=X3U84U8A6F
 BUNDLE_ID=com.myapplication.MyApplication
 APP_NAME=My application
diff --git a/shared/src/commonMain/kotlin/App.kt b/shared/src/commonMain/kotlin/App.kt
index 0889bdd..fe8ebb0 100644
--- a/shared/src/commonMain/kotlin/App.kt
+++ b/shared/src/commonMain/kotlin/App.kt
@@ -1,38 +1,85 @@
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.itemsIndexed
 import androidx.compose.material.Button
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
+import androidx.compose.material.TextButton
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import org.jetbrains.compose.resources.ExperimentalResourceApi
-import org.jetbrains.compose.resources.painterResource
+import androidx.compose.ui.unit.dp
 
-@OptIn(ExperimentalResourceApi::class)
 @Composable
 fun App() {
     MaterialTheme {
-        var greetingText by remember { mutableStateOf("Hello, World!") }
-        var showImage by remember { mutableStateOf(false) }
-        Column(Modifier.fillMaxWidth(), horizontalAlignment = Alignment.CenterHorizontally) {
-            Button(onClick = {
-                greetingText = "Hello, ${getPlatformName()}"
-                showImage = !showImage
-            }) {
-                Text(greetingText)
+        val runGame = remember { mutableStateOf(false) }
+
+        if (!runGame.value) {
+            Column {
+                Spacer(modifier = Modifier.size(50.dp))
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.Center,
+                    modifier = Modifier.fillMaxWidth()
+                ) {
+                    Button(onClick = { runGame.value = true }) {
+                        Text(text = "Start Game")
+                    }
+                }
             }
-            AnimatedVisibility(showImage) {
-                Image(
-                    painterResource("compose-multiplatform.xml"),
-                    null
-                )
+        } else {
+
+            val fieldPos = remember { mutableStateListOf<Field>() }
+            val selectedPos = remember { mutableStateOf(0) }
+            val houses = remember { mutableStateOf(0) }
+            val population = remember { mutableStateOf(0) }
+            val maxPopulation = remember { mutableStateOf(0) }
+
+            if (fieldPos.size != 100) {
+                for (i in 0..99) {
+                    fieldPos.add(i, Field(text = "x"))
+                }
+            }
+
+            Column {
+                Row {
+                    Text(
+                        text = "Einwohneranzahl ${population.value} / ${maxPopulation.value}"
+                    )
+                }
+
+                LazyVerticalGrid(
+                    columns = GridCells.Fixed(10)
+                ) {
+                    itemsIndexed(fieldPos) { field, item: Field ->
+                        TextButton(onClick = {
+                            fieldPos[field] = fieldPos[field].copy(text = "o")
+                            selectedPos.value = field
+                        }) {
+                            Text(text = item.text)
+                        }
+                    }
+                }
+
+                Row {
+                    Button(onClick = {
+                        fieldPos[selectedPos.value] = fieldPos[selectedPos.value].copy(text = "H", isBuild = true)
+                        houses.value++
+                        maxPopulation.value = houses.value * 5
+                    }) {
+                        Text("Haus")
+                    }
+                }
             }
         }
     }
diff --git a/shared/src/commonMain/kotlin/Field.kt b/shared/src/commonMain/kotlin/Field.kt
new file mode 100644
index 0000000..931fc0d
--- /dev/null
+++ b/shared/src/commonMain/kotlin/Field.kt
@@ -0,0 +1 @@
+data class Field(var isBuild: Boolean = false, var text: String = "x")
\ No newline at end of file