diff --git a/BauSystem_Main/src/BauSystem.properties b/BauSystem_Main/src/BauSystem.properties
index 448669eb..a578fb06 100644
--- a/BauSystem_Main/src/BauSystem.properties
+++ b/BauSystem_Main/src/BauSystem.properties
@@ -513,6 +513,7 @@ SIMULATOR_GUI_ITEM_NAME = §eTNT Simulator
 SIMULATOR_NO_SIM_IN_HAND = §cNo simulator item selected
 SIMULATOR_GUI_SELECT_SIM = Simulator selection
 SIMULATOR_NAME_ALREADY_EXISTS = §cSimulator already exists
+SIMULATOR_NAME_INVALID = §cInvalid name
 SIMULATOR_NOT_EXISTS = §cSimulator does not exist
 SIMULATOR_CREATE = §aSimulator created
 SIMULATOR_EDIT_LOCATION = §7Edit position
diff --git a/BauSystem_Main/src/BauSystem_de.properties b/BauSystem_Main/src/BauSystem_de.properties
index c2e2373a..52de07f8 100644
--- a/BauSystem_Main/src/BauSystem_de.properties
+++ b/BauSystem_Main/src/BauSystem_de.properties
@@ -514,6 +514,7 @@ SIMULATOR_GUI_ITEM_NAME = §eTNT Simulator
 SIMULATOR_NO_SIM_IN_HAND = §cKein Simulator Item gewählt
 SIMULATOR_GUI_SELECT_SIM = Simulator wählen
 SIMULATOR_NAME_ALREADY_EXISTS = §cSimulator existiert bereits
+SIMULATOR_NAME_INVALID = §cUngültiger Name
 SIMULATOR_NOT_EXISTS = §cSimulator existiert nicht
 SIMULATOR_CREATE = §aSimulator erstellt
 SIMULATOR_EDIT_LOCATION = §7Editiere Positionen
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/simulator/SimulatorCommand.java b/BauSystem_Main/src/de/steamwar/bausystem/features/simulator/SimulatorCommand.java
index 49dda986..481e8407 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/simulator/SimulatorCommand.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/simulator/SimulatorCommand.java
@@ -62,6 +62,10 @@ public class SimulatorCommand extends SWCommand {
             BauSystem.MESSAGE.send("SIMULATOR_NAME_ALREADY_EXISTS", p);
             return;
         }
+        if (!name.matches("[a-zA-Z_]+")) {
+            BauSystem.MESSAGE.send("SIMULATOR_NAME_INVALID", p);
+            return;
+        }
         SimulatorStorage.createNewSimulator(name);
         BauSystem.MESSAGE.send("SIMULATOR_CREATE", p);
     }