diff --git a/queries.sql b/queries.sql
index 216950d..942ae28 100644
--- a/queries.sql
+++ b/queries.sql
@@ -43,7 +43,7 @@ WHERE
 ORDER BY
     e.title;
 
--- Consulta 1: Filtra más la consulta anterior
+-- Consulta 1: Filtra la consulta anterior por nombre de desarrollador
 SELECT DISTINCT
     e.title,
     l.name,
@@ -105,11 +105,16 @@ FROM
                         (
                             publishers p
                             INNER JOIN entries e ON p.entry_id = e.id
-                        ) INNER JOIN labels l ON p.label_id = l.id
-                    ) INNER JOIN genretypes g ON e.genretype_id = g.id
-                ) INNER JOIN downloads d ON e.id = d.entry_id
-            ) INNER JOIN filetypes f ON d.filetype_id = f.id
-        ) INNER JOIN releases r ON e.id = r.entry_id
+                        )
+                        INNER JOIN labels l ON p.label_id = l.id
+                    )
+                    INNER JOIN genretypes g ON e.genretype_id = g.id
+                )
+                INNER JOIN downloads d ON e.id = d.entry_id
+            )
+            INNER JOIN filetypes f ON d.filetype_id = f.id
+        )
+        INNER JOIN releases r ON e.id = r.entry_id
         AND p.release_seq = r.release_seq
     )
 WHERE
@@ -133,7 +138,7 @@ WHERE
 ORDER BY
     e.title;
 
--- Consulta 3: ZXNEXT - Devuelve juegos y solo archivos de cinta o pokes
+-- Consulta 3: ZXNEXT - Devuelve juegos de ZX-Spectrum y solo archivos de cinta o pokes
 SELECT DISTINCT
     e.title,
     l.name,
@@ -147,13 +152,21 @@ FROM
                 (
                     (
                         (
-                            publishers p
-                            INNER JOIN entries e ON p.entry_id = e.id
-                        ) INNER JOIN labels l ON p.label_id = l.id
-                    ) INNER JOIN genretypes g ON e.genretype_id = g.id
-                ) INNER JOIN downloads d ON e.id = d.entry_id
-            ) INNER JOIN filetypes f ON d.filetype_id = f.id
-        ) INNER JOIN releases r ON e.id = r.entry_id
+                            (
+                                publishers p
+                                INNER JOIN entries e ON p.entry_id = e.id
+                            )
+                            INNER JOIN labels l ON p.label_id = l.id
+                        )
+                        INNER JOIN genretypes g ON e.genretype_id = g.id
+                    )
+                    INNER JOIN machinetypes m ON e.machinetype_id = m.id
+                )
+                INNER JOIN downloads d ON e.id = d.entry_id
+            )
+            INNER JOIN filetypes f ON d.filetype_id = f.id
+        )
+        INNER JOIN releases r ON e.id = r.entry_id
         AND p.release_seq = r.release_seq
     )
 WHERE
@@ -162,16 +175,13 @@ WHERE
         OR e.availabletype_id = 'D'
     )
     AND (
-        f.text IN (
-            'Tape image',
-            'Snapshot image',
-            'POK pokes file'
-        )
+        f.text IN ('Tape image', 'Snapshot image', 'POK pokes file')
     )
     AND r.release_seq = 0
     AND (
         g.text like '%Game:%'
         AND g.text not like 'Casual%'
     )
+    AND m.text like 'ZX-%'
 ORDER BY
     e.title;
\ No newline at end of file