The wild symbol is a golden vault door and it can substitute for all the other symbols, except the scatter and bonus symbols, to help and form winning combinations.
The scatter symbol is a compass and offers scatter payouts of up to 1,000x the total bet.
The free spins begin when three of the bonus cryptex symbols land. You are awarded an infinite number of spins and three lives. During the spins a skull symbol can land on the reels and every time it does it will turn wild to help and form wins. However, it will also take one of your lives and the spins end when it has landed three times.
The slot offers a Hi-Roller option. It costs more per spin but unlocks additional bonus features. You can purchase high roller spins during which bronze, silver and gold vault seals can appear on the reels and you need to collect them in order to trigger the bonus feature. Collecting three bronze vault seals gives you a spin on a wheel that can award cash prizes. If you collect four silver vault seals you spin a wheel that awards cash prizes or free spins. If you collect five golden vault seals you spin a wheel that can award a cash prize or free spins or advance you to an inner wheel where even larger cash prizes can be won.
Da Vinci’s Vault offers a top payout of 10,000x for landing five wilds or Mona Lisa symbols along a payline. The Vitruvian Man can payout up to 4,000x, and the machine and the goblet can both payout up to 1,500x.