diff --git a/res/js/i18n/de.json b/res/js/i18n/de.json
index 12f3791..35b3241 100644
--- a/res/js/i18n/de.json
+++ b/res/js/i18n/de.json
@@ -1,6 +1,7 @@
 {
 	"@metadata": {
 		"authors": [
+			"Brettchenweber",
 			"IMayBeABitShy"
 		]
 	},
@@ -37,7 +38,7 @@
 	"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-quantum-phenomena": "Chemie / Quantenphänomene",
 	"category-chemistry-sound-and-waves": "Chemie / Ton & Wellen",
 	"category-chemistry-work-energy-and-power": "Chemie / Arbeit, Energie & Leistung",
 	"category-earth-science": "Geowissenschaften",
diff --git a/res/js/i18n/es.json b/res/js/i18n/es.json
new file mode 100644
index 0000000..e6e47bb
--- /dev/null
+++ b/res/js/i18n/es.json
@@ -0,0 +1,87 @@
+{
+	"@metadata": {
+		"authors": [
+			"Fitoschido",
+			"Ovruni",
+			"Vis4valentine"
+		]
+	},
+	"zim-title": "Simulaciones interactivas de PhET",
+	"zim-description": "Simulaciones interactivas para Ciencias y Matemáticas",
+	"helping-students-engage-in-science-and-mathematics": "Ayudar a los estudiantes a participar en ciencias y matemáticas.",
+	"document-title": "Simulaciones interactivas PhET para ciencias y matemáticas",
+	"load-button": "Cargar",
+	"cancel-button": "Cancelar",
+	"logo-text": "Simulaciones interactivas de PhET",
+	"category-all-categories": "Todas las categorías",
+	"category-biology": "Biología",
+	"category-biology-biology": "Biología / Biología",
+	"category-biology-earth-science": "Biología / Ciencias de la Tierra",
+	"category-biology-electricity-magnets-and-circuits": "Biología / Electricidad, Imanes y Circuitos",
+	"category-biology-general-chemistry": "Biología / Química General",
+	"category-biology-heat-and-thermo": "Biología / Calor y termología",
+	"category-biology-light-and-radiation": "Biología / Luz y Radiación",
+	"category-biology-math-applications": "Biología / Aplicaciones matemáticas",
+	"category-biology-math-concepts": "Biología / Conceptos Matemáticos",
+	"category-biology-motion": "Biología / Movimiento",
+	"category-biology-quantum-chemistry": "Biología / Química Cuántica",
+	"category-biology-quantum-phenomena": "Biología / Fenómenos Cuánticos",
+	"category-biology-sound-and-waves": "Biología / Sonido y Ondas",
+	"category-biology-work-energy-and-power": "Biología / Trabajo, energía y poder",
+	"category-chemistry": "Química",
+	"category-chemistry-biology": "Química / Biología",
+	"category-chemistry-earth-science": "Química / Ciencias de la Tierra",
+	"category-chemistry-electricity-magnets-and-circuits": "Biología / Electricidad, Imanes y Circuitos",
+	"category-chemistry-general-chemistry": "Química / Química General",
+	"category-chemistry-heat-and-thermo": "Química / Calor y Temperatura",
+	"category-chemistry-light-and-radiation": "Química / Luz y Radiación",
+	"category-chemistry-math-applications": "Química / Aplicaciones Matemáticas",
+	"category-chemistry-math-concepts": "Química / Conceptos Matemáticos",
+	"category-chemistry-motion": "Química / Movimiento",
+	"category-chemistry-quantum-chemistry": "Química / Química Cuántica",
+	"category-chemistry-quantum-phenomena": "Química / Fenómenos Cuánticos",
+	"category-chemistry-sound-and-waves": "Química / Sonido y Ondas",
+	"category-chemistry-work-energy-and-power": "Química / Trabajo, Energía y Potencia",
+	"category-earth-science": "Ciencias de la Tierra",
+	"category-earth-science-biology": "Ciencias de la Tierra / Biología",
+	"category-earth-science-earth-science": "Ciencias de la Tierra / Ciencias de la Tierra",
+	"category-earth-science-electricity-magnets-and-circuits": "Ciencias de la Tierra / Electricidad, Imanes y Circuitos",
+	"category-earth-science-general-chemistry": "Ciencias de la Tierra / Química General",
+	"category-earth-science-heat-and-thermo": "Ciencias de la Tierra / Calor y Temperatura",
+	"category-earth-science-light-and-radiation": "Ciencias de la Tierra / Luz y Radiación",
+	"category-earth-science-math-applications": "Ciencias de la Tierra / Aplicaciones matemáticas",
+	"category-earth-science-math-concepts": "Ciencias de la Tierra/Conceptos matemáticos",
+	"category-earth-science-motion": "Ciencias de la Tierra / Movimiento",
+	"category-earth-science-quantum-chemistry": "Ciencias de la Tierra / Química General",
+	"category-earth-science-quantum-phenomena": "Ciencias de la Tierra / Fenómenos Cuánticos",
+	"category-earth-science-sound-and-waves": "Ciencias de la Tierra / Sonido y Ondas",
+	"category-earth-science-work-energy-and-power": "Ciencias de la Tierra / Trabajo, Energía y Potencia",
+	"category-math": "Matemática",
+	"category-math-biology": "Matemáticas / Biología",
+	"category-math-earth-science": "Matemáticas / Ciencias de la Tierra",
+	"category-math-electricity-magnets-and-circuits": "Matemáticas / Electricidad, Imanes y Circuitos",
+	"category-math-general-chemistry": "Matemáticas / Química General",
+	"category-math-heat-and-thermo": "Matemáticas / Calor y Temperatura",
+	"category-math-light-and-radiation": "Matemáticas / Luz y Radiación",
+	"category-math-math-applications": "Matemáticas / Aplicaciones Matemáticas",
+	"category-math-math-concepts": "Matemáticas / Conceptos matemáticos",
+	"category-math-motion": "Matemáticas / Movimiento",
+	"category-math-quantum-chemistry": "Matemáticas / Química Cuántica",
+	"category-math-quantum-phenomena": "Matemáticas / Fenómenos cuánticos",
+	"category-math-sound-and-waves": "Matemáticas / Sonido y Ondas",
+	"category-math-work-energy-and-power": "Matemáticas / Trabajo, Energía y Potencia",
+	"category-physics": "Física",
+	"category-physics-biology": "Física / Biología",
+	"category-physics-earth-science": "Física / Ciencias de la Tierra",
+	"category-physics-electricity-magnets-and-circuits": "Física / Electricidad, Imanes y Circuitos",
+	"category-physics-general-chemistry": "Física / Química General",
+	"category-physics-heat-and-thermo": "Física / Calor y Temperatura",
+	"category-physics-light-and-radiation": "Física / Luz y Radiación",
+	"category-physics-math-applications": "Física / Aplicaciones matemáticas",
+	"category-physics-math-concepts": "Física / Conceptos de matemáticas",
+	"category-physics-motion": "Física / Movimiento",
+	"category-physics-quantum-chemistry": "Física / Química Cuántica",
+	"category-physics-quantum-phenomena": "Física / Fenómenos Cuánticos",
+	"category-physics-sound-and-waves": "Física / Sonido y Ondas",
+	"category-physics-work-energy-and-power": "Física / Trabajo, Energía y Poder"
+}
diff --git a/res/js/i18n/hi.json b/res/js/i18n/hi.json
new file mode 100644
index 0000000..60645a2
--- /dev/null
+++ b/res/js/i18n/hi.json
@@ -0,0 +1,53 @@
+{
+	"@metadata": {
+		"authors": [
+			"Abijeet Patro",
+			"Juuz0"
+		]
+	},
+	"zim-title": "पीएचईटी इंटरएक्टिव सिमुलेशन",
+	"zim-description": "विज्ञान और गणित के लिए इंटरएक्टिव सिमुलेशन",
+	"helping-students-engage-in-science-and-mathematics": "छात्रों को विज्ञान और गणित में संलग्न होने में मदद कर रहें।",
+	"document-title": "विज्ञान और गणित के लिए PhET इंटरैक्टिव सिमुलेशन",
+	"load-button": "लोड करें",
+	"cancel-button": "रद्द करें",
+	"logo-text": "PhET इंटरएक्टिव सिमुलेशन",
+	"category-all-categories": "सब वर्ग",
+	"category-biology": "जीवविज्ञान",
+	"category-biology-biology": "जीव विज्ञान / जीव विज्ञान",
+	"category-biology-earth-science": "जीव विज्ञान / पृथ्वी विज्ञान",
+	"category-biology-electricity-magnets-and-circuits": "जीव विज्ञान / विद्युत चुंबक और परिपथ",
+	"category-biology-general-chemistry": "जीव विज्ञान / सामान्य रसायन विज्ञान",
+	"category-biology-heat-and-thermo": "जीव विज्ञान / ऊष्मा और ताप",
+	"category-biology-light-and-radiation": "जीव विज्ञान / प्रकाश और विकिरण",
+	"category-biology-math-applications": "जीव विज्ञान / गणित अनुप्रयोग",
+	"category-biology-math-concepts": "जीव विज्ञान / गणित अवधारणाएँ",
+	"category-biology-motion": "जीव विज्ञान / गति",
+	"category-biology-quantum-chemistry": "जीव विज्ञान / क्वांटम रसायन विज्ञान",
+	"category-biology-quantum-phenomena": "जीव विज्ञान / क्वांटम घटना",
+	"category-biology-sound-and-waves": "जीव विज्ञान / ध्वनि और तरंगें",
+	"category-chemistry": "रसायन विज्ञान",
+	"category-chemistry-biology": "रसायन विज्ञान / जीव विज्ञान",
+	"category-chemistry-motion": "रसायन / गति",
+	"category-earth-science": "पृथ्वी विज्ञान",
+	"category-earth-science-biology": "पृथ्वी विज्ञान / जीव विज्ञान",
+	"category-math": "गणित",
+	"category-math-biology": "गणित / जीव विज्ञान",
+	"category-math-earth-science": "गणित / पृथ्वी विज्ञान",
+	"category-math-electricity-magnets-and-circuits": "गणित / बिजली, चुंबक और परिपथ",
+	"category-math-general-chemistry": "गणित / सामान्य रसायन विज्ञान",
+	"category-math-heat-and-thermo": "गणित / ऊष्मा और ऊष्मा",
+	"category-math-light-and-radiation": "गणित / प्रकाश और विकिरण",
+	"category-math-math-applications": "गणित / गणित अनुप्रयोग",
+	"category-math-math-concepts": "गणित / गणित अवधारणाएँ",
+	"category-math-motion": "गणित / गति",
+	"category-math-quantum-chemistry": "गणित / क्वांटम रसायन विज्ञान",
+	"category-math-quantum-phenomena": "गणित / क्वांटम घटना",
+	"category-math-sound-and-waves": "गणित / ध्वनि और तरंगें",
+	"category-math-work-energy-and-power": "गणित/कार्य, ऊर्जा और शक्ति",
+	"category-physics": "भौतिक विज्ञान",
+	"category-physics-biology": "भौतिकी / जीव विज्ञान",
+	"category-physics-motion": "भौतिकी / गति",
+	"category-physics-sound-and-waves": "भौतिकी / ध्वनि और तरंगें",
+	"category-physics-work-energy-and-power": "भौतिकी / कार्य - ऊर्जा और शक्ति"
+}
diff --git a/res/js/i18n/ru.json b/res/js/i18n/ru.json
new file mode 100644
index 0000000..6310736
--- /dev/null
+++ b/res/js/i18n/ru.json
@@ -0,0 +1,82 @@
+{
+	"@metadata": {
+		"authors": [
+			"Kareyac",
+			"Razno0",
+			"Smavrina"
+		]
+	},
+	"zim-title": "Интерактивное моделирование PhET",
+	"zim-description": "Интерактивные симуляции PhET для естественных наук и математики",
+	"helping-students-engage-in-science-and-mathematics": "Помощь учащимся в изучении естественных наук и математики.",
+	"document-title": "Интерактивные симуляции PhET для естественных наук и математики",
+	"load-button": "Загрузить",
+	"cancel-button": "Отмена",
+	"logo-text": "Интерактивное моделирование PhET",
+	"category-all-categories": "Все категории",
+	"category-biology": "Биология",
+	"category-biology-biology": "Биология / Биология",
+	"category-biology-earth-science": "Биология / Науки о Земле",
+	"category-biology-electricity-magnets-and-circuits": "Биология / Электричество, магниты и схемы",
+	"category-biology-general-chemistry": "Биология / Общая химия",
+	"category-biology-light-and-radiation": "Биология / Свет и излучение",
+	"category-biology-math-applications": "Биология / Математические приложения",
+	"category-biology-math-concepts": "Биология / Математические понятия",
+	"category-biology-motion": "Биология / Движение",
+	"category-biology-quantum-chemistry": "Биология / Квантовая химия",
+	"category-biology-quantum-phenomena": "Биология / Квантовые явления",
+	"category-biology-sound-and-waves": "Биология / Звук и волны",
+	"category-biology-work-energy-and-power": "Биология / Работа, энергия и мощность",
+	"category-chemistry": "Химия",
+	"category-chemistry-biology": "Химия / Биология",
+	"category-chemistry-earth-science": "Химия / Науки о Земле",
+	"category-chemistry-electricity-magnets-and-circuits": "Химия / Электричество, магниты и схемы",
+	"category-chemistry-general-chemistry": "Химия / Общая химия",
+	"category-chemistry-light-and-radiation": "Химия / Свет и излучение",
+	"category-chemistry-math-applications": "Химия / Математические приложения",
+	"category-chemistry-math-concepts": "Химия / Математические понятия",
+	"category-chemistry-motion": "Химия / Движение",
+	"category-chemistry-quantum-chemistry": "Химия / Квантовая химия",
+	"category-chemistry-quantum-phenomena": "Химия / Квантовые явления",
+	"category-chemistry-sound-and-waves": "Химия / Звук и волны",
+	"category-chemistry-work-energy-and-power": "Химия / Работа, энергия и мощность",
+	"category-earth-science": "Науки о Земле",
+	"category-earth-science-biology": "Науки о Земле / Биология",
+	"category-earth-science-earth-science": "Науки о Земле / Науки о Земле",
+	"category-earth-science-electricity-magnets-and-circuits": "Науки о Земле / Электричество, магниты и схемы",
+	"category-earth-science-general-chemistry": "Науки о Земле / Общая химия",
+	"category-earth-science-light-and-radiation": "Науки о Земле / Свет и радиация",
+	"category-earth-science-math-applications": "Науки о Земле / Математические приложения",
+	"category-earth-science-math-concepts": "Науки о Земле / Математические понятия",
+	"category-earth-science-motion": "Науки о Земле / Движение",
+	"category-earth-science-quantum-chemistry": "Науки о Земле / Квантовая химия",
+	"category-earth-science-quantum-phenomena": "Науки о Земле / Квантовые явления",
+	"category-earth-science-sound-and-waves": "Науки о Земле / Звук и волны",
+	"category-earth-science-work-energy-and-power": "Науки о Земле / Работа, энергетика и власть",
+	"category-math": "Математика",
+	"category-math-biology": "Математика / Биология",
+	"category-math-earth-science": "Математика / Науки о Земле",
+	"category-math-electricity-magnets-and-circuits": "Математика / Электричество, Магниты и схемы",
+	"category-math-general-chemistry": "Математика / Общая химия",
+	"category-math-light-and-radiation": "Математика / Свет и радиация",
+	"category-math-math-applications": "Математика / Математические приложения",
+	"category-math-math-concepts": "Математика / Математические понятия",
+	"category-math-motion": "Математика / Движение",
+	"category-math-quantum-chemistry": "Математика / Квантовая химия",
+	"category-math-quantum-phenomena": "Математика / Квантовые явления",
+	"category-math-sound-and-waves": "Математика / Звук и волны",
+	"category-math-work-energy-and-power": "Математика / Работа, энергия и мощность",
+	"category-physics": "Физика",
+	"category-physics-biology": "Физика / Биология",
+	"category-physics-earth-science": "Физика / Науки о Земле",
+	"category-physics-electricity-magnets-and-circuits": "Физика / Электричество, магниты и схемы",
+	"category-physics-general-chemistry": "Физика / Общая химия",
+	"category-physics-light-and-radiation": "Физика / Свет и радиация",
+	"category-physics-math-applications": "Физика / Математические приложения",
+	"category-physics-math-concepts": "Физика / Математические понятия",
+	"category-physics-motion": "Физика / Движение",
+	"category-physics-quantum-chemistry": "Физика / Квантовая химия",
+	"category-physics-quantum-phenomena": "Физика / Квантовые явления",
+	"category-physics-sound-and-waves": "Физика / Звук и волны",
+	"category-physics-work-energy-and-power": "Физика / Работа, энергия и мощность"
+}