diff --git a/apps/api/app/admin/softwares.rb b/apps/api/app/admin/softwares.rb
index 606946c..5bc6b2f 100644
--- a/apps/api/app/admin/softwares.rb
+++ b/apps/api/app/admin/softwares.rb
@@ -1,6 +1,7 @@
 ActiveAdmin.register Software do
   permit_params :name, :title, :author, :desc, :story,
-                :license, :platform, :status, :highlighted, :image_id,
+                :license, :platform, :status, :highlighted,
+                software_images_attributes: [ :id, :image_id, :is_default, :position, :_destroy ],
                 external_links_attributes: [ :id, :label, :url, :_destroy ],
                 releases_attributes: [ :id, :version, :html_folder_path, :cartridge_path, :source_path, :docs_folder_path, :web_playable, :_destroy ]
 
@@ -19,8 +20,9 @@ ActiveAdmin.register Software do
     end
     column :highlighted
     column(:image) do |sw|
-      if sw.image && File.exist?(sw.image.file_path)
-        image_tag "/api/image/#{sw.image.id}", style: "max-height:40px;max-width:80px;object-fit:contain;"
+      si = sw.software_images.detect(&:is_default?) || sw.software_images.first
+      if si&.image && File.exist?(si.image.file_path)
+        image_tag "/api/image/#{si.image_id}", style: "max-height:40px;max-width:80px;object-fit:contain;"
       end
     end
     column :created_at
@@ -44,13 +46,19 @@ ActiveAdmin.register Software do
         f.input :status,   as: :select, collection: %w[development demo released archived]
         f.input :highlighted
         f.input :license
-        f.input :image_id, as: :select, label: "Image",
-                           collection: Image.order(:original_filename).map { |img| [ img.original_filename, img.id ] },
-                           include_blank: "— no image —"
         f.input :desc,  as: :text, input_html: { rows: 4 }
         f.input :story, as: :text, input_html: { rows: 8 }
       end
 
+      f.inputs "Images" do
+        f.has_many :software_images, allow_destroy: true, new_record: true do |si|
+          si.input :image_id, as: :select, label: "Image",
+                   collection: Image.order(:original_filename).map { |img| [img.original_filename, img.id] }
+          si.input :is_default, as: :boolean
+          si.input :position, as: :number, input_html: { min: 0 }
+        end
+      end
+
       f.inputs "External Links" do
         f.has_many :external_links, allow_destroy: true, new_record: true do |el|
           el.input :label
@@ -73,6 +81,12 @@ ActiveAdmin.register Software do
     end
   end
 
+  controller do
+    def scoped_collection
+      super.includes(:software_images)
+    end
+  end
+
   form do |f|
     f.inputs "Details" do
       f.input :name
@@ -82,13 +96,19 @@ ActiveAdmin.register Software do
       f.input :status,   as: :select, collection: %w[development demo released archived]
       f.input :highlighted
       f.input :license
-      f.input :image_id, as: :select, label: "Image",
-                         collection: Image.order(:original_filename).map { |img| [ img.original_filename, img.id ] },
-                         include_blank: "— no image —"
       f.input :desc,  as: :text, input_html: { rows: 4 }
       f.input :story, as: :text, input_html: { rows: 8 }
     end
 
+    f.inputs "Images" do
+      f.has_many :software_images, allow_destroy: true, new_record: true do |si|
+        si.input :image_id, as: :select, label: "Image",
+                 collection: Image.order(:original_filename).map { |img| [img.original_filename, img.id] }
+        si.input :is_default, as: :boolean
+        si.input :position, as: :number, input_html: { min: 0 }
+      end
+    end
+
     f.inputs "External Links" do
       f.has_many :external_links, allow_destroy: true, new_record: true do |el|
         el.input :label
diff --git a/apps/api/app/models/image.rb b/apps/api/app/models/image.rb
index 587e1ad..1bdaa46 100644
--- a/apps/api/app/models/image.rb
+++ b/apps/api/app/models/image.rb
@@ -1,6 +1,8 @@
 class Image < ApplicationRecord
   UPLOAD_PATH = ENV.fetch("IMAGE_CONTAINER_PATH", "/images")
 
+  has_many :software_images, dependent: :restrict_with_error
+
   attr_accessor :file_upload
 
   before_save :process_upload, if: -> { file_upload.present? }
diff --git a/apps/api/app/models/software.rb b/apps/api/app/models/software.rb
index def66d7..c5727e5 100644
--- a/apps/api/app/models/software.rb
+++ b/apps/api/app/models/software.rb
@@ -1,21 +1,22 @@
 class Software < ApplicationRecord
   self.table_name = "softwares"
 
-  belongs_to :image, optional: true
-
+  has_many :software_images, foreign_key: :software_id, dependent: :destroy
+  has_many :images, through: :software_images
   has_many :releases, foreign_key: :software_id
   has_many :external_links, foreign_key: :software_id
 
+  accepts_nested_attributes_for :software_images, allow_destroy: true
   accepts_nested_attributes_for :external_links, allow_destroy: true
   accepts_nested_attributes_for :releases, allow_destroy: true
 
   default_scope { where(deleted_at: nil) }
 
   def self.ransackable_attributes(auth_object = nil)
-    %w[author created_at desc highlighted id image_id license name platform site status story title updated_at]
+    %w[author created_at desc highlighted id license name platform site status story title updated_at]
   end
 
   def self.ransackable_associations(auth_object = nil)
-    %w[releases external_links image]
+    %w[releases external_links software_images images]
   end
 end
diff --git a/apps/api/app/models/software_image.rb b/apps/api/app/models/software_image.rb
new file mode 100644
index 0000000..d17a0de
--- /dev/null
+++ b/apps/api/app/models/software_image.rb
@@ -0,0 +1,27 @@
+class SoftwareImage < ApplicationRecord
+  belongs_to :software
+  belongs_to :image
+
+  validates :image_id, uniqueness: { scope: :software_id }
+  validates :position, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
+
+  before_save :unset_other_defaults, if: -> { is_default? && is_default_changed? }
+
+  default_scope { order(:position) }
+
+  def self.ransackable_attributes(auth_object = nil)
+    %w[created_at id image_id is_default position software_id updated_at]
+  end
+
+  def self.ransackable_associations(auth_object = nil)
+    %w[image software]
+  end
+
+  private
+
+  def unset_other_defaults
+    SoftwareImage.where(software_id: software_id, is_default: true)
+                 .where.not(id: id)
+                 .update_all(is_default: false)
+  end
+end
diff --git a/apps/api/app/serializers/software_serializer.rb b/apps/api/app/serializers/software_serializer.rb
index 2af8fb6..53aa301 100644
--- a/apps/api/app/serializers/software_serializer.rb
+++ b/apps/api/app/serializers/software_serializer.rb
@@ -16,5 +16,13 @@ class SoftwareSerializer < Blueprinter::Base
   field :status
   field(:highlighted)  { |sw| sw.highlighted ? true : false }
   field(:externalLinks) { |sw| ExternalLinkSerializer.render_as_hash(sw.external_links) }
-  field(:imageUrl)     { |sw| sw.image_id ? "/api/image/#{sw.image_id}" : nil }
+  field(:imageUrl) { |sw|
+    si = sw.software_images.detect(&:is_default?) || sw.software_images.first
+    si ? "/api/image/#{si.image_id}" : nil
+  }
+  field(:images) { |sw|
+    sw.software_images.map { |si|
+      { url: "/api/image/#{si.image_id}", isDefault: si.is_default?, position: si.position }
+    }
+  }
 end
diff --git a/apps/api/app/services/software_highlighted_service.rb b/apps/api/app/services/software_highlighted_service.rb
index cc3b104..622d287 100644
--- a/apps/api/app/services/software_highlighted_service.rb
+++ b/apps/api/app/services/software_highlighted_service.rb
@@ -2,7 +2,7 @@ class SoftwareHighlightedService
   include SoftwareResponseBuilder
 
   def index
-    software = Software.includes(:external_links, :image)
+    software = Software.includes(:external_links, :software_images)
                        .where(highlighted: true)
                        .order(id: :desc)
                        .first
diff --git a/apps/api/app/services/software_service.rb b/apps/api/app/services/software_service.rb
index 06400aa..48633e9 100644
--- a/apps/api/app/services/software_service.rb
+++ b/apps/api/app/services/software_service.rb
@@ -2,7 +2,7 @@ class SoftwareService
   include SoftwareResponseBuilder
 
   def index
-    softwares = Software.includes(:releases, :external_links, :image).all
+    softwares = Software.includes(:releases, :external_links, :software_images).all
     { softwares: softwares.map { |sw| build_response(sw, sw.releases.to_a) } }
   end
 end
diff --git a/apps/api/db/migrate/20260505000010_create_software_images.rb b/apps/api/db/migrate/20260505000010_create_software_images.rb
new file mode 100644
index 0000000..1634d3c
--- /dev/null
+++ b/apps/api/db/migrate/20260505000010_create_software_images.rb
@@ -0,0 +1,18 @@
+class CreateSoftwareImages < ActiveRecord::Migration[8.0]
+  def change
+    create_table :software_images do |t|
+      t.bigint  :software_id, null: false, unsigned: true
+      t.bigint  :image_id,    null: false
+      t.boolean :is_default,  null: false, default: false
+      t.integer :position,    null: false, default: 0
+
+      t.timestamps
+    end
+
+    add_index :software_images, [:software_id, :image_id], unique: true
+    add_index :software_images, [:software_id, :position]
+
+    add_foreign_key :software_images, :softwares
+    add_foreign_key :software_images, :images
+  end
+end
diff --git a/apps/api/db/migrate/20260505000011_migrate_and_remove_software_image_id.rb b/apps/api/db/migrate/20260505000011_migrate_and_remove_software_image_id.rb
new file mode 100644
index 0000000..a60d5df
--- /dev/null
+++ b/apps/api/db/migrate/20260505000011_migrate_and_remove_software_image_id.rb
@@ -0,0 +1,24 @@
+class MigrateAndRemoveSoftwareImageId < ActiveRecord::Migration[8.0]
+  def up
+    Software.unscoped.where.not(image_id: nil).find_each do |sw|
+      SoftwareImage.create!(
+        software_id: sw.id,
+        image_id:    sw.image_id,
+        is_default:  true,
+        position:    0
+      )
+    end
+
+    remove_foreign_key :softwares, :images
+    remove_column :softwares, :image_id
+  end
+
+  def down
+    add_column :softwares, :image_id, :bigint
+    add_foreign_key :softwares, :images
+
+    SoftwareImage.where(is_default: true).find_each do |si|
+      Software.unscoped.where(id: si.software_id).update_all(image_id: si.image_id)
+    end
+  end
+end
diff --git a/apps/frontend/src/lib/interfaces/software.interface.ts b/apps/frontend/src/lib/interfaces/software.interface.ts
index 9f36015..e594d15 100644
--- a/apps/frontend/src/lib/interfaces/software.interface.ts
+++ b/apps/frontend/src/lib/interfaces/software.interface.ts
@@ -7,6 +7,12 @@ export interface Release {
   UpdatedAt: string
 }
 
+export interface SoftwareImage {
+  url: string
+  isDefault: boolean
+  position: number
+}
+
 export interface Software {
   name: string
   title: string
@@ -18,6 +24,7 @@ export interface Software {
   story?: string
   externalLinks?: { label: string; url: string }[]
   imageUrl?: string | null
+  images?: SoftwareImage[]
 }
 
 export interface SoftwareEntry {
diff --git a/apps/frontend/src/page/catalog/CatalogIndexPage.vue b/apps/frontend/src/page/catalog/CatalogIndexPage.vue
index fed5e80..181cc65 100644
--- a/apps/frontend/src/page/catalog/CatalogIndexPage.vue
+++ b/apps/frontend/src/page/catalog/CatalogIndexPage.vue
@@ -23,8 +23,8 @@
         <div v-show="activeFilter === 'all' || software.status === activeFilter" class="software-card group">
           <div class="software-card-content">
             <div class="flex flex-col md:flex-row md:items-center justify-between gap-4">
-              <div v-if="software.imageUrl" class="flex-shrink-0">
-                <img :src="software.imageUrl" :alt="software.title" class="software-thumb" />
+              <div v-if="getDefaultImageUrl(software)" class="flex-shrink-0">
+                <img :src="getDefaultImageUrl(software)!" :alt="software.title" class="software-thumb" />
               </div>
               <div class="flex-grow">
                 <div class="flex items-center gap-3 mb-2">
@@ -66,6 +66,7 @@ import { storeToRefs } from 'pinia'
 import { RouterLink } from 'vue-router'
 import { useI18n } from 'vue-i18n'
 import { useSoftwareStore } from '../../stores/software.store'
+import type { Software } from '../../lib/interfaces/software.interface'
 
 const { t } = useI18n()
 
@@ -76,6 +77,14 @@ const store = useSoftwareStore()
 const { items: softwares } = storeToRefs(store)
 const { getLatestStable } = store
 
+function getDefaultImageUrl(sw: Software): string | null {
+  if (sw.images?.length) {
+    const def = sw.images.find(i => i.isDefault)
+    return def?.url ?? sw.images[0]?.url ?? null
+  }
+  return sw.imageUrl ?? null
+}
+
 onMounted(() => store.fetchAll())
 </script>
 
diff --git a/apps/frontend/src/page/catalog/CatalogShowPage.vue b/apps/frontend/src/page/catalog/CatalogShowPage.vue
index 313a916..9f32eba 100644
--- a/apps/frontend/src/page/catalog/CatalogShowPage.vue
+++ b/apps/frontend/src/page/catalog/CatalogShowPage.vue
@@ -27,8 +27,26 @@
         <!-- Sidebar Info -->
         <div class="lg:col-span-1 space-y-6">
           <div class="bg-white rounded-3xl shadow-xl p-8 border border-gray-100">
-            <div v-if="software.imageUrl" class="mb-6 flex justify-center">
-              <img :src="software.imageUrl" :alt="software.title" class="max-h-48 w-auto object-contain border-4 border-gray-100 shadow-sm" />
+            <div v-if="defaultImageUrl" class="mb-6">
+              <div class="flex justify-center">
+                <img
+                  :src="defaultImageUrl"
+                  :alt="software.title"
+                  :class="['max-h-48 w-auto object-contain border-4 border-gray-100 shadow-sm', softwareImages.length > 0 ? 'cursor-pointer hover:opacity-80 transition-opacity' : '']"
+                  @click="openLightbox(defaultImageIndex)"
+                />
+              </div>
+              <div v-if="softwareImages.length > 1" class="flex gap-2 mt-3 justify-center">
+                <img
+                  v-for="(img, idx) in softwareImages"
+                  :key="idx"
+                  :src="img.url"
+                  :alt="`${software.title} ${idx + 1}`"
+                  :class="['w-12 h-12 object-cover rounded border-2 cursor-pointer transition-all',
+                           img.isDefault ? 'border-purple-400' : 'border-gray-200 hover:border-purple-300']"
+                  @click="openLightbox(idx)"
+                />
+              </div>
             </div>
             <h2 class="text-xl font-bold text-gray-900 mb-6 flex items-center gap-2">
               <span class="text-purple-600">ℹ</span> {{ t('catalogShow.projectInfo') }}
@@ -158,6 +176,13 @@
       </div>
     </main>
 
+    <ImageLightbox
+      :images="softwareImages"
+      :is-open="lightboxOpen"
+      :start-index="lightboxStartIndex"
+      @close="lightboxOpen = false"
+    />
+
     <main v-else class="main-container -mt-10">
       <div class="bg-white rounded-3xl shadow-xl p-12 text-center text-gray-400">
         {{ error || t('catalogShow.loading') }}
@@ -172,7 +197,8 @@ import { RouterLink, useRoute } from 'vue-router'
 import { useI18n } from 'vue-i18n'
 import { formatDateTime } from '../../lib/dateFormat'
 import { useSoftwareStore } from '../../stores/software.store'
-import type { Release, Software } from '../../lib/interfaces/software.interface'
+import type { Release, Software, SoftwareImage } from '../../lib/interfaces/software.interface'
+import ImageLightbox from './ImageLightbox.vue'
 
 const { t } = useI18n()
 const route = useRoute()
@@ -181,6 +207,33 @@ const store = useSoftwareStore()
 const software = ref<Software | null>(null)
 const releases = ref<Release[]>([])
 const error = ref<string | null>(null)
+const lightboxOpen = ref(false)
+const lightboxStartIndex = ref(0)
+
+const softwareImages = computed<SoftwareImage[]>(() => {
+  if (software.value?.images?.length) {
+    return [...software.value.images].sort((a, b) => a.position - b.position)
+  }
+  if (software.value?.imageUrl) {
+    return [{ url: software.value.imageUrl, isDefault: true, position: 0 }]
+  }
+  return []
+})
+
+const defaultImageIndex = computed(() => {
+  const idx = softwareImages.value.findIndex(i => i.isDefault)
+  return idx >= 0 ? idx : 0
+})
+
+const defaultImageUrl = computed(() =>
+  softwareImages.value[defaultImageIndex.value]?.url ?? null
+)
+
+function openLightbox(index: number) {
+  if (softwareImages.value.length === 0) return
+  lightboxStartIndex.value = index
+  lightboxOpen.value = true
+}
 
 const stableReleases = computed(() =>
   releases.value
diff --git a/apps/frontend/src/page/catalog/ImageLightbox.vue b/apps/frontend/src/page/catalog/ImageLightbox.vue
new file mode 100644
index 0000000..28f7f65
--- /dev/null
+++ b/apps/frontend/src/page/catalog/ImageLightbox.vue
@@ -0,0 +1,65 @@
+<template>
+  <Teleport to="body">
+    <div
+      v-if="isOpen"
+      class="fixed inset-0 z-50 flex items-center justify-center bg-black/80 backdrop-blur-sm"
+      @click.self="close"
+      @keydown.escape="close"
+      @keydown.left="prev"
+      @keydown.right="next"
+      tabindex="0"
+      ref="overlay"
+    >
+      <button @click="close" class="absolute top-4 right-4 text-white/70 hover:text-white text-3xl font-bold z-10">&times;</button>
+
+      <button v-if="images.length > 1" @click="prev"
+              class="absolute left-4 text-white/70 hover:text-white text-5xl font-bold z-10 select-none">&lsaquo;</button>
+
+      <img
+        :src="images[currentIndex].url"
+        :alt="`Image ${currentIndex + 1}`"
+        class="max-h-[85vh] max-w-[90vw] object-contain rounded-lg shadow-2xl"
+      />
+
+      <button v-if="images.length > 1" @click="next"
+              class="absolute right-4 text-white/70 hover:text-white text-5xl font-bold z-10 select-none">&rsaquo;</button>
+
+      <div v-if="images.length > 1" class="absolute bottom-6 text-white/60 text-sm font-mono">
+        {{ currentIndex + 1 }} / {{ images.length }}
+      </div>
+    </div>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+import { ref, watch, nextTick } from 'vue'
+import type { SoftwareImage } from '../../lib/interfaces/software.interface'
+
+const props = defineProps<{
+  images: SoftwareImage[]
+  isOpen: boolean
+  startIndex?: number
+}>()
+
+const emit = defineEmits<{
+  close: []
+}>()
+
+const currentIndex = ref(0)
+const overlay = ref<HTMLElement | null>(null)
+
+watch(() => props.isOpen, async (open) => {
+  if (open) {
+    currentIndex.value = props.startIndex ?? 0
+    document.body.style.overflow = 'hidden'
+    await nextTick()
+    overlay.value?.focus()
+  } else {
+    document.body.style.overflow = ''
+  }
+})
+
+function close() { emit('close') }
+function next() { currentIndex.value = (currentIndex.value + 1) % props.images.length }
+function prev() { currentIndex.value = (currentIndex.value - 1 + props.images.length) % props.images.length }
+</script>
diff --git a/apps/frontend/src/page/home/HomePage.vue b/apps/frontend/src/page/home/HomePage.vue
index 7edc992..686a025 100644
--- a/apps/frontend/src/page/home/HomePage.vue
+++ b/apps/frontend/src/page/home/HomePage.vue
@@ -39,8 +39,8 @@
       <!-- Featured Software Section -->
       <section v-if="highlightedSoftware" class="mb-16">
         <div class="featured-card group">
-          <div v-if="highlightedSoftware.software.imageUrl" class="featured-image-panel">
-            <img :src="highlightedSoftware.software.imageUrl" :alt="highlightedSoftware.software.title" class="featured-image" />
+          <div v-if="highlightedImageUrl" class="featured-image-panel">
+            <img :src="highlightedImageUrl" :alt="highlightedSoftware.software.title" class="featured-image" />
           </div>
           <div class="featured-content">
             <div class="flex items-center gap-2 mb-4">
@@ -220,7 +220,7 @@
 </template>
 
 <script setup lang="ts">
-import { onMounted, onUnmounted } from 'vue'
+import { computed, onMounted, onUnmounted } from 'vue'
 import { storeToRefs } from 'pinia'
 import { RouterLink } from 'vue-router'
 import { useI18n } from 'vue-i18n'
@@ -236,6 +236,16 @@ const { nextEvent, followingEvents, countdownText } = storeToRefs(eventStore)
 const softwareStore = useSoftwareStore()
 const { highlighted: highlightedSoftware, highlightedStableRelease } = storeToRefs(softwareStore)
 
+const highlightedImageUrl = computed(() => {
+  const sw = highlightedSoftware.value?.software
+  if (!sw) return null
+  if (sw.images?.length) {
+    const def = sw.images.find(i => i.isDefault)
+    return def?.url ?? sw.images[0]?.url ?? null
+  }
+  return sw.imageUrl ?? null
+})
+
 const ytStore = useYoutubeStore()
 const { state: ytState, videoId: ytVideoId, title: ytTitle, publishDate: ytPublishDate, viewCount: ytViewCount, error: ytError } = storeToRefs(ytStore)