Enter key opens selected game in the game list.

Source/Core/DolphinQt2/GameList/GameList.cpp

@@ -4,6 +4,7 @@
 
 #include <QDesktopServices>
 #include <QHeaderView>
+#include <QKeyEvent>
 #include <QMenu>
 #include <QUrl>
 
@@ -161,3 +162,10 @@ void GameList::ConsiderViewChange()
 		setCurrentWidget(m_empty);
 	}
 }
+void GameList::keyReleaseEvent(QKeyEvent* event)
+{
+	if (event->key() == Qt::Key_Return)
+		emit GameSelected();
+	else
+		QStackedWidget::keyReleaseEvent(event);
+}

Source/Core/DolphinQt2/GameList/GameList.h

@@ -52,4 +52,6 @@ private:
 	QTableView* m_table;
 	QLabel* m_empty;
 	bool m_prefer_table;
+protected:
+	void keyReleaseEvent(QKeyEvent* event) override;
 };