FreeCell Solitaire
MobilityWare
空当接龙
KARMAN Games
Solitaire Card Games , Inc.
Zynga
Brainium Studios
Solitaire Collection Fun
Neworld Games
纸牌接龙
nerByte GmbH
Freecell Solitaire
Puzzle & Card Game Studios
AGED Freecell Solitaire
Aged Studio Limited