10-20-30 also known as Decade Solitaire is played using one deck of playing cards with aim is to discard all cards. All 52 cards are placed face up in a sequence which continues from left to right and top to bottom. If the total of at least two consecutive selected cards are equal to 10, 20, or 30, those cards are discarded. Spot cards (ace, duece, etc.) have their face value while face cards (jack, queen, and king) are valued at 10. Once all cards are discarded, you win.

Features
- Save game state to play later
- Unlimited undo
- Game play statistics