diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 14746e7..3b069e4 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -8,6 +8,8 @@
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/modules" />
+            <option value="$PROJECT_DIR$/modules/core" />
           </set>
         </option>
       </GradleProjectSettings>
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 2993a02..32cf4db 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" project-jdk-name="corretto-21" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="corretto-21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/scala_compiler.xml b/.idea/scala_compiler.xml
new file mode 100644
index 0000000..015fcd8
--- /dev/null
+++ b/.idea/scala_compiler.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ScalaCompilerConfiguration">
+    <profile name="Gradle 1" modules="NowChessSystems.modules.core.main,NowChessSystems.modules.core.test">
+      <option name="deprecationWarnings" value="true" />
+      <option name="uncheckedWarnings" value="true" />
+    </profile>
+  </component>
+</project>
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index 3b04a4d..74a7e75 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,2 +1,9 @@
 group = "de.nowchess"
 version = "1.0-SNAPSHOT"
+
+val versions = mapOf(
+    "QUARKUS_SCALA3" to "1.0.0",
+    "SCALA3"         to "3.5.1",
+    "SCALA_LIBRARY"  to "2.13.18"
+)
+extra["VERSIONS"] = versions
\ No newline at end of file
diff --git a/modules/core/build.gradle.kts b/modules/core/build.gradle.kts
new file mode 100644
index 0000000..6389d66
--- /dev/null
+++ b/modules/core/build.gradle.kts
@@ -0,0 +1,44 @@
+plugins {
+    id("scala")
+}
+
+group = "de.nowchess"
+version = "1.0-SNAPSHOT"
+
+@Suppress("UNCHECKED_CAST")
+val versions = rootProject.extra["VERSIONS"] as Map<String, String>
+
+repositories {
+    mavenCentral()
+}
+
+scala {
+    versions["SCALA3"]!!
+}
+
+dependencies {
+
+    implementation("org.scala-lang:scala3-compiler_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+    implementation("org.scala-lang:scala3-library_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+    implementation("org.scala-lang:scala-library") {
+        version {
+            strictly(versions["SCALA_LIBRARY"]!!)
+        }
+    }
+
+    testImplementation(platform("org.junit:junit-bom:5.10.0"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
\ No newline at end of file
diff --git a/modules/core/src/main/scala/de/nowchess/Test.scala b/modules/core/src/main/scala/de/nowchess/Test.scala
new file mode 100644
index 0000000..26804d9
--- /dev/null
+++ b/modules/core/src/main/scala/de/nowchess/Test.scala
@@ -0,0 +1,9 @@
+package de.nowchess
+
+object Test {
+
+  def main(args: Array[String]): Unit = {
+    println("Hello World")
+  }
+
+}
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 0481e45..784ffd7 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1 +1,2 @@
-rootProject.name = "NowChessSystems"
\ No newline at end of file
+rootProject.name = "NowChessSystems"
+include("modules:core")
\ No newline at end of file