diff --git a/src/gamestate.cpp b/src/gamestate.cpp
index 8a30c1f..ccb7084 100644
--- a/src/gamestate.cpp
+++ b/src/gamestate.cpp
@@ -1,5 +1,6 @@
 #include "gamestate.h"
 #include <QDebug>
+#include <qqmllist.h>
 #include <random>
 
 GameState::GameState(QObject* parent, bool preDealCards) : QObject{parent} {
@@ -525,20 +526,36 @@ void GameState::ensureColumnRevealed(int columnId) {
     qDebug() << "Revealed card " << col->card()->toString() << " in column " << columnId;
 }
 
-QList<PlayingCard*> GameState::drawPile() const {
-    return m_drawPile;
+QVariantList GameState::drawPile() const {
+    QVariantList lst;
+    for (auto& card : m_drawPile) {
+        lst.append(QVariant::fromValue(card));
+    }
+    return lst;
 }
 
-QList<PlayingCard*> GameState::throwawayPile() const {
-    return m_throwawayPile;
+QVariantList GameState::throwawayPile() const {
+    QVariantList lst;
+    for (auto& card : m_throwawayPile) {
+        lst.append(QVariant::fromValue(card));
+    }
+    return lst;
 }
 
-QList<QList<ColumnSlot*> > GameState::columns() const {
-    return m_columns;
+QVariantList GameState::columns() const {
+    QVariantList lst;
+    for (auto& columnStack : m_columns) {
+        lst.append(QVariant::fromValue(columnStack));
+    }
+    return lst;
 }
 
-QList<QList<PlayingCard*> > GameState::foundation() const {
-    return m_foundation;
+QVariantList GameState::foundation() const {
+    QVariantList lst;
+    for (auto& foundationStack : m_foundation) {
+        lst.append(QVariant::fromValue(foundationStack));
+    }
+    return lst;
 }
 
 bool GameState::gameWon() const {
diff --git a/src/gamestate.h b/src/gamestate.h
index 8bd3bcd..cbeaae7 100644
--- a/src/gamestate.h
+++ b/src/gamestate.h
@@ -5,25 +5,26 @@
 #include "playingcard.h"
 #include <QObject>
 #include <qqmlintegration.h>
+#include <qqmllist.h>
 
 class GameState : public QObject {
     Q_OBJECT
     QML_ELEMENT
     QML_SINGLETON
-    Q_PROPERTY(QList<PlayingCard*> drawPile READ drawPile NOTIFY drawPileChanged)
-    Q_PROPERTY(QList<PlayingCard*> throwawayPile READ throwawayPile NOTIFY throwawayPileChanged)
-    Q_PROPERTY(QList<QList<ColumnSlot*>> columns READ columns NOTIFY columnsChanged)
-    Q_PROPERTY(QList<QList<PlayingCard*>> foundation READ foundation NOTIFY foundationChanged)
+    Q_PROPERTY(QVariantList drawPile READ drawPile NOTIFY drawPileChanged)
+    Q_PROPERTY(QVariantList throwawayPile READ throwawayPile NOTIFY throwawayPileChanged)
+    Q_PROPERTY(QVariantList columns READ columns NOTIFY columnsChanged)
+    Q_PROPERTY(QVariantList foundation READ foundation NOTIFY foundationChanged)
     Q_PROPERTY(bool gameWon READ gameWon NOTIFY gameWonChanged)
 
   public:
     explicit GameState(QObject* parent = nullptr);
 
     // Getters
-    QList<PlayingCard*> drawPile() const;
-    QList<PlayingCard*> throwawayPile() const;
-    QList<QList<ColumnSlot*>> columns() const;
-    QList<QList<PlayingCard*>> foundation() const;
+    QVariantList drawPile() const;
+    QVariantList throwawayPile() const;
+    QVariantList columns() const;
+    QVariantList foundation() const;
     bool gameWon() const;
 
     // General functions