Board & Party Game Tools

Most online game helpers use JavaScript's Math.random(). It is fast, it is fine for shuffling a music playlist, and it is seeded predictably enough that its future output can be reconstructed from a modest run of prior values. For a hidden-information game that is a real hole: anyone who can see a handful of earlier boards could, in principle, anticipate the next one.

These tools draw from the Web Crypto API instead, which reads the operating system's entropy pool. That is the same source that seeds TLS keys, and it cannot be reconstructed from previous output. It costs nothing extra to do it properly.

The second half of the problem is bias. Mapping raw entropy onto a range with a modulo makes the low end more likely whenever the range is not a power of two. In a word grid that would mean certain positions receiving the dangerous card more often than others — invisible in a single game, real over a hundred.

Cards go missing, boxes get left at someone else's house, and party games get suggested at exactly the moment nobody has the components. A generated grid on a phone is a workable substitute for the printed cards in most word games, and it removes the setup shuffle entirely.

It also solves the opposite problem: playing so often that the deck starts to feel familiar. A generated board draws from a much larger pool than a physical set holds, so the same combination effectively never comes up twice.

The useful property of generating a setup at the table is that nobody arranged it. When one player shuffles and deals, the others are trusting them — usually fine, occasionally not, and always a small social cost in a competitive game.

Generating in the open removes the question. Everyone watches the same button get pressed, and no participant could have influenced the result even if they wanted to.