The History of FreeCell
A century-old card game family whose most famous variant, unusually, is famous largely because of a very specific piece of 1990s software.
An Open-Information Card Game
FreeCell descends from a family of "open" or "Baker's Game"-style patience games dating back to at least the early 20th century, in which every card is dealt face-up from the very first move - unlike most solitaire games, nothing is ever hidden, so a skilled enough player (or computer) can in principle work out whether a given deal is winnable before making a single move.
The addition of free cells - small holding areas for temporarily parking individual cards - is generally credited to Paul Alfille, who created an early digital version called FreeCell for the PLATO computer system in 1978, refining the older open-tableau format into the specific ruleset played today.
Bundled With Windows
FreeCell became a household name after Microsoft included it with Windows starting in 1995, alongside Solitaire and Minesweeper, introducing it to hundreds of millions of PC users who had never encountered it before - much like Minesweeper's own path to fame.
Microsoft's version shipped with a fixed set of 32,000 numbered deals rather than a fresh random shuffle each time, which let players compare notes and replay a specific deal - a convention this PaperGames version doesn't follow, generating a genuinely fresh shuffle every time instead.
The Deal That (Almost) Always Wins
Because every card is visible from the start, FreeCell is unusually well-suited to computer analysis: of Microsoft's original 32,000 numbered deals, exhaustive solver searches found that all but one - deal number 11,982 - are solvable, a piece of trivia FreeCell enthusiasts still bring up decades later.
Later research pushed the analysis further, confirming that only a handful of deals among the first million numbered games are unsolvable - which is why a plain random shuffle, as this version uses, is such a safe bet: the odds of landing on one of those rare exceptions are vanishingly small.