Form eight sets of cards of the same suit from King to Ace within the Columns.
Using two decks, cards are dealt to 10 Columns. The first 4 Columns are dealt 11 cards each, and the remaining Columns are dealt 10 cards each. Unlike single-deck Scorpion, all cards are dealt out initially.
In each of the first 5 Columns, 5 cards will be face down - the Scorpion's tail.
Columns are built DOWN in the SAME SUIT. For example, a 6 of clubs may only be placed onto a 7 of clubs.
Any number of face up cards may be moved whether in sequence or not provided the above build rule is applied.
When a face down card is the topmost card in a Column, it is flipped face up.
Empty Columns may be filled with Kings.
The goal is to build 8 sets of cards within the layout from King down to Ace in the same suit. One point is scored for each card built within a Column starting with a King. For example, if a Column has a K, Q, and J of the same suit in sequence then three points are scored for that combination.
Unlike Single-deck Scorpion, all cards are dealt out during the initial deal so that there is no Stock in Double Scorpion.