Three is the count most often served badly. Plenty of games list it on the box and then play like a two-player game with an inconvenient extra, or a four-player game missing its balance.
Everything here has three as its own minimum, so the design assumes a third player rather than accommodating one. That usually means open information and no fixed turn-order advantage, so the two trailing players are not pushed into an unspoken alliance against whoever is ahead.
How this list is chosen
These five come from the same query that powers the finder, run with one filter pre-set. Expansions are excluded, so everything here is a game you can buy and play on its own, and only games with at least a hundred ratings are eligible.
Ranking is by community rating adjusted for how many people voted, not by raw average — otherwise a game rated 9.0 by a hundred devotees would outrank a classic rated 8.6 by forty thousand. The full method is here, and you can set your own filters to narrow this further by age, complexity or player count.