One-Ball Croquet is played according to Advanced Rules (of Association Croquet), except each player has only one ball. Wiring lifts are given. Lifts after running hoops 1-back and 4-back are given.
It's a quick (30 to 45 minutes) game with lots of interaction.
It's a great transition between Golf Croquet and Association Croquet.
If it's so great, why isn't it more popular?