Zero21 is a challenging game with a simple rule:
Try to stay between 0 and 21. It's not easy!
Zero21 Solitaire is a fun numbers game with solitaire flavor to relax and unwind while keeping your mind sharp.
Collect all the number cards on the board while keeping your sum between 0 and 21. But be careful! Zero21 Solitaire is more difficult than you think.