diff --git a/res/js/i18n/de.json b/res/js/i18n/de.json
new file mode 100644
index 0000000..12f3791
--- /dev/null
+++ b/res/js/i18n/de.json
@@ -0,0 +1,85 @@
+{
+	"@metadata": {
+		"authors": [
+			"IMayBeABitShy"
+		]
+	},
+	"zim-title": "PhET Interaktive Simulationen",
+	"zim-description": "Interaktive Simulationen der Wissenschaft und Mathematik",
+	"helping-students-engage-in-science-and-mathematics": "Den Schülern und Studenten helfen, sich für Naturwissenschaften und Mathematik zu interessieren.",
+	"document-title": "PhET Interaktive Simulationen für Wissenschaft und Mathematik",
+	"load-button": "Laden",
+	"cancel-button": "Abbrechen",
+	"logo-text": "PhET Interaktive Simulationen",
+	"category-all-categories": "Alle Kategorien",
+	"category-biology": "Biologie",
+	"category-biology-biology": "Biologie / Biologie",
+	"category-biology-earth-science": "Biologie / Geowissenschaften",
+	"category-biology-electricity-magnets-and-circuits": "Biologie / Elektrizität, Magneten und Schaltkreise",
+	"category-biology-general-chemistry": "Biologie / Allgemeine Chemie",
+	"category-biology-heat-and-thermo": "Biologie / Wärme & Hitze",
+	"category-biology-light-and-radiation": "Biologie / Licht & Strahlung",
+	"category-biology-math-applications": "Biologie / Mathematische Anwendungen",
+	"category-biology-math-concepts": "Biologie / Mathematische Konzepte",
+	"category-biology-motion": "Biologie / Bewegung",
+	"category-biology-quantum-chemistry": "Biologie / Quantenchemie",
+	"category-biology-quantum-phenomena": "Biologie / Quantenphänomene",
+	"category-biology-sound-and-waves": "Biologie / Ton & Wellen",
+	"category-biology-work-energy-and-power": "Biologie / Arbeit, Energie & Leistung",
+	"category-chemistry": "Chemie",
+	"category-chemistry-biology": "Chemie / Biologie",
+	"category-chemistry-earth-science": "Chemie / Geowissenschaften",
+	"category-chemistry-electricity-magnets-and-circuits": "Chemie / Elektrizität, Magnete & Schaltkreise",
+	"category-chemistry-general-chemistry": "Chemie / Allgemeine Chemie",
+	"category-chemistry-heat-and-thermo": "Chemie / Wärme & Hitze",
+	"category-chemistry-light-and-radiation": "Chemie / Licht & Strahlung",
+	"category-chemistry-math-applications": "Chemie / Mathematische Anwendungen",
+	"category-chemistry-math-concepts": "Chemie / Mathematische Konzepte",
+	"category-chemistry-motion": "Chemie / Bewegung",
+	"category-chemistry-quantum-chemistry": "Chemie / Quantenchemie",
+	"category-chemistry-quantum-phenomena": "Chemie / Quantenphenomäne",
+	"category-chemistry-sound-and-waves": "Chemie / Ton & Wellen",
+	"category-chemistry-work-energy-and-power": "Chemie / Arbeit, Energie & Leistung",
+	"category-earth-science": "Geowissenschaften",
+	"category-earth-science-biology": "Geowissenschaften / Biologie",
+	"category-earth-science-earth-science": "Geowissenschaften / Geowissenschaften",
+	"category-earth-science-electricity-magnets-and-circuits": "Geowissenschaften / Elektrizität, Magnete & Schaltkreise",
+	"category-earth-science-general-chemistry": "Geowissenschaften / Allgemeine Chemie",
+	"category-earth-science-heat-and-thermo": "Geowissenschaften / Wärme & Hitze",
+	"category-earth-science-light-and-radiation": "Geowissenschaften / Licht & Strahlung",
+	"category-earth-science-math-applications": "Geowissenschaften / Mathematische Anwendungen",
+	"category-earth-science-math-concepts": "Geowissenschaften / Mathematische Konzepte",
+	"category-earth-science-motion": "Geowissenschaften / Bewegung",
+	"category-earth-science-quantum-chemistry": "Geowissenschaften / Quantenchemie",
+	"category-earth-science-quantum-phenomena": "Geowissenschaften / Quantenphänomene",
+	"category-earth-science-sound-and-waves": "Geowissenschaften / Ton & Wellen",
+	"category-earth-science-work-energy-and-power": "Geowissenschaften / Arbeit, Energie & Leistung",
+	"category-math": "Mathematik",
+	"category-math-biology": "Mathematik / Biologie",
+	"category-math-earth-science": "Mathematik / Geowissenschaften",
+	"category-math-electricity-magnets-and-circuits": "Mathematik / Elektrizität, Magnete & Schaltkreise",
+	"category-math-general-chemistry": "Mathematik / Allgemeine Chemie",
+	"category-math-heat-and-thermo": "Mathematik / Wärme & Hitze",
+	"category-math-light-and-radiation": "Mathematik / Licht & Strahlung",
+	"category-math-math-applications": "Mathematik / Mathematische Anwendungen",
+	"category-math-math-concepts": "Mathematik / Mathematische Konzepte",
+	"category-math-motion": "Mathematik / Bewegung",
+	"category-math-quantum-chemistry": "Mathematik / Quantenchemie",
+	"category-math-quantum-phenomena": "Mathematik / Quantenphänomene",
+	"category-math-sound-and-waves": "Mathematik / Ton & Wellen",
+	"category-math-work-energy-and-power": "Mathematik / Arbeit, Energie & Leistung",
+	"category-physics": "Physik",
+	"category-physics-biology": "Physik / Biologie",
+	"category-physics-earth-science": "Physik / Geowissenschaften",
+	"category-physics-electricity-magnets-and-circuits": "Physik / Elektrizität, Magnete & Schaltkreise",
+	"category-physics-general-chemistry": "Physik / Allgemeine Chemie",
+	"category-physics-heat-and-thermo": "Physik / Wärme & Hitze",
+	"category-physics-light-and-radiation": "Physik / Licht & Strahlung",
+	"category-physics-math-applications": "Physik / Mathematische Anwendungen",
+	"category-physics-math-concepts": "Physik / Mathematische Konzepte",
+	"category-physics-motion": "Physik / Bewegung",
+	"category-physics-quantum-chemistry": "Physik / Quantenchemie",
+	"category-physics-quantum-phenomena": "Physik / Quantenphänomene",
+	"category-physics-sound-and-waves": "Physik / Ton & Wellen",
+	"category-physics-work-energy-and-power": "Physik / Arbeit, Energie & Leistung"
+}
diff --git a/res/js/i18n/gu.json b/res/js/i18n/gu.json
new file mode 100644
index 0000000..cd15736
--- /dev/null
+++ b/res/js/i18n/gu.json
@@ -0,0 +1,40 @@
+{
+	"@metadata": {
+		"authors": [
+			"CptViraj"
+		]
+	},
+	"helping-students-engage-in-science-and-mathematics": "વિદ્યાર્થીઓને વિજ્ઞાન અને ગણિત સાથે જોડવામાં મદદ કરીએ છીએ.",
+	"category-biology": "જીવવિજ્ઞાન",
+	"category-biology-biology": "જીવવિજ્ઞાન / જીવવિજ્ઞાન",
+	"category-biology-electricity-magnets-and-circuits": "જીવવિજ્ઞાન / વિદ્યુત, ચુંબક અને પરિપથ",
+	"category-biology-general-chemistry": "જીવવિજ્ઞાન / સામાન્ય રસાયણવિજ્ઞાન",
+	"category-biology-math-applications": "જીવવિજ્ઞાન / ગણિતના ઉપયોગો",
+	"category-biology-motion": "જીવવિજ્ઞાન / ગતિ",
+	"category-biology-sound-and-waves": "જીવવિજ્ઞાન / ધ્વનિ અને તરંગો",
+	"category-biology-work-energy-and-power": "જીવવિજ્ઞાન / કાર્ય, ઉર્જા અને શક્તિ",
+	"category-chemistry": "રસાયણવિજ્ઞાન",
+	"category-chemistry-biology": "રસાયણવિજ્ઞાન / જીવવિજ્ઞાન",
+	"category-chemistry-electricity-magnets-and-circuits": "રસાયણવિજ્ઞાન / વિદ્યુત, ચુંબક અને પરિપથ",
+	"category-chemistry-general-chemistry": "રસાયણવિજ્ઞાન / સામાન્ય રસાયણવિજ્ઞાન",
+	"category-chemistry-math-applications": "રસાયણવિજ્ઞાન / ગણિતના ઉપયોગો",
+	"category-chemistry-motion": "રસાયણવિજ્ઞાન / ગતિ",
+	"category-chemistry-sound-and-waves": "રસાયણવિજ્ઞાન / ધ્વનિ અને તરંગો",
+	"category-chemistry-work-energy-and-power": "રસાયણવિજ્ઞાન / કાર્ય, ઊર્જા અને શક્તિ",
+	"category-math": "ગણિત",
+	"category-math-biology": "ગણિત / જીવવિજ્ઞાન",
+	"category-math-electricity-magnets-and-circuits": "ગણિત / વિદ્યુત, ચુંબક અને પરિપથ",
+	"category-math-general-chemistry": "ગણિત / સામાન્ય રસાયણવિજ્ઞાન",
+	"category-math-math-applications": "ગણિત / ગણિતના ઉપયોગો",
+	"category-math-motion": "ગણિત / ગતિ",
+	"category-math-sound-and-waves": "ગણિત / ધ્વનિ અને તરંગો",
+	"category-math-work-energy-and-power": "ગણિત / કાર્ય, ઉર્જા અને શક્તિ",
+	"category-physics": "ભૌતિકવિજ્ઞાન",
+	"category-physics-biology": "ભૌતિકવિજ્ઞાન / જીવવિજ્ઞાન",
+	"category-physics-electricity-magnets-and-circuits": "ભૌતિકવિજ્ઞાન / વિદ્યુત, ચુંબક અને પરિપથ",
+	"category-physics-general-chemistry": "ભૌતિકવિજ્ઞાન / સામાન્ય રસાયણવિજ્ઞાન",
+	"category-physics-math-applications": "ભૌતિકવિજ્ઞાન / ગણિતના ઉપયોગો",
+	"category-physics-motion": "ભૌતિકવિજ્ઞાન / ગતિ",
+	"category-physics-sound-and-waves": "ભૌતિકવિજ્ઞાન / ધ્વનિ અને તરંગો",
+	"category-physics-work-energy-and-power": "ભૌતિકવિજ્ઞાન / કાર્ય, ઊર્જા અને શક્તિ"
+}
diff --git a/res/js/i18n/ms.json b/res/js/i18n/ms.json
index 846b8bd..e442de6 100644
--- a/res/js/i18n/ms.json
+++ b/res/js/i18n/ms.json
@@ -30,6 +30,7 @@
 	"category-math-electricity-magnets-and-circuits": "Matematik / Elektrik, Magnet & Litar",
 	"category-math-math-concepts": "Matematik / Konsep Matematik",
 	"category-math-quantum-chemistry": "Matematik / Kimia Kuantum",
+	"category-math-sound-and-waves": "Matematik / Bunyi & Gelombang",
 	"category-physics": "Fizik",
 	"category-physics-biology": "Fizik / Biologi",
 	"category-physics-math-concepts": "Fizik / Konsep Matematik",
diff --git a/res/js/i18n/skr-arab.json b/res/js/i18n/skr-arab.json
new file mode 100644
index 0000000..c4e68eb
--- /dev/null
+++ b/res/js/i18n/skr-arab.json
@@ -0,0 +1,45 @@
+{
+	"@metadata": {
+		"authors": [
+			"Saraiki"
+		]
+	},
+	"load-button": "لوڈ",
+	"cancel-button": "منسوخ",
+	"category-all-categories": "ساریاں ونکیاں",
+	"category-biology": "بیالوجی",
+	"category-biology-biology": "بیالوجی/بیالوجی",
+	"category-biology-general-chemistry": "بیالوجی/ عمومی کیمسٹری",
+	"category-biology-heat-and-thermo": "بیالوجی/ حرارت تے تھرمو",
+	"category-biology-light-and-radiation": "بیالوجی/ روشنی تے ریڈیشن",
+	"category-biology-motion": "بیالوجی/ حرکت",
+	"category-biology-quantum-chemistry": "بیالوجی/ کوانٹم کیمسٹری",
+	"category-biology-sound-and-waves": "بیالوجی/ اواز تے لہراں",
+	"category-chemistry": "کیمسٹری",
+	"category-chemistry-biology": "کیمسٹری / بیالوجی",
+	"category-chemistry-earth-science": "کیمسٹری / ارضی سائنس",
+	"category-chemistry-general-chemistry": "کیمسٹری / عمومی کیمسٹری",
+	"category-chemistry-heat-and-thermo": "کیمسٹری / حرارت تے تھرمو",
+	"category-chemistry-light-and-radiation": "کیمسٹری / روشنی تے ریڈیشن",
+	"category-chemistry-motion": "کیمسٹری / حرکت",
+	"category-chemistry-quantum-chemistry": "کیمسٹری / کوانٹم کیمسٹری",
+	"category-earth-science": "ارضی سائنس",
+	"category-earth-science-biology": "ارضی سائنس/ بیالوجی",
+	"category-math": "ریاضی",
+	"category-math-biology": "ریاضی/ بیالوجی",
+	"category-math-earth-science": "ریاضی / ارضی سائنس",
+	"category-math-general-chemistry": "ریاضی/ عمومی کیمسٹری",
+	"category-math-light-and-radiation": "ریاضی / روشنی تے ریڈیشن",
+	"category-math-motion": "ریاضی / حرکت",
+	"category-physics": "فزکس",
+	"category-physics-biology": "فزکس/ بیالوجی",
+	"category-physics-general-chemistry": "فزکس / عمومی کیمسٹری",
+	"category-physics-heat-and-thermo": "فزکس / حرارت تے تھرمو",
+	"category-physics-light-and-radiation": "فزکس / روشنی تے ریڈیشن",
+	"category-physics-math-applications": "فزکس / ریاضی اطلاقیات",
+	"category-physics-math-concepts": "فزکس/ ریاضی تصورات",
+	"category-physics-motion": "فزکس / حرکت",
+	"category-physics-quantum-chemistry": "فزکس / کوانٹم کیمسٹری",
+	"category-physics-quantum-phenomena": "فزکس / کوانٹم مظہر",
+	"category-physics-sound-and-waves": "فزکس / اواز تے لہراں"
+}