Hello SuzurannYuan! This collection contains all of our RPG music packs to date. The Valentine's Day sale included all of them as well, I believe, but check to see if you have the following packs (that are included in this collection):
[RPG Music Collection I]
• RPG Battle Themes I
• RPG Castle Themes I
• RPG Dungeon Themes I
• RPG Exploration Themes I
• RPG Fanfares & Ambiences I
• RPG Lite Edition I
• RPG Town Themes I
[RPG Music Collection II]
• RPG Battle Themes II
• RPG Tavern Themes
• RPG Exploration Themes II
• RPG Fanfares & Ambiences II
• RPG Lite Edition II
• RPG Town Themes II
[Retro]
• Retro RPG Music Pack
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Let me know if you have any questions.