We just released a free update for The Rusty Sword: Vanguard Island that adds a second island and dungeon, as well as new enemies and equipment!
New Features and Improvements:
• Second island with an all-new overworld, dungeon, and boss
• Boomerang equipable item
• Magic Ring equipable item
• Magic Potion auto-use item
• New enemies
• Bombable doors now make a sound when hit with a sword
• Quest/island selection menu
• Simplified UI for inventory menu and save files
• Extra detail for various pixel art
• Small bug fixes and other improvements