Card and chance games teach probability, memory, and judgment, and they reflect the cultures that shaped them. Three contemporary examples—Rummy, Okrummy, and Aviator—span a spectrum from predominantly skill based to largely chance driven. Understanding how each works, where the skill lies, and what responsible play looks like can make participation safer, more social, and more satisfying, whether at a kitchen table or on a phone. Rummy is a family of matching games in which players form melds: sets of equal ranks or runs of consecutive ranks in the same suit. A basic turn involves drawing a card from the stock or discard pile and discarding one card, while trying to minimize deadwood—unmatched cards that count against your score. Most forms end a hand when a player goes out by laying down enough melds or by knocking with low deadwood. Popular variants emphasize different skills. Gin Rummy rewards hand reading and timing: you usually cannot pick up the top discard unless you use it immediately, and you end the hand by knocking when your deadwood is at or below a threshold. Indian Rummy, often played with two decks and jokers, adds wild cards and longer runs, which increases both combination breadth and memory demands. Contract Rummy and Phase Ten structure hands around escalating requirements, steering players toward planned sequencing rather than opportunistic sets. Across rummy games, three foundational tactics recur. First, track information: watch discards and infer which ranks and suits are live, avoiding feeds that help opponents meld. Second, manage tempo: holding flexible cards can conceal your hand until a single draw lets you go out, but waiting too long risks getting caught with heavy deadwood. Third, plan exits: know when to knock, when to play for gin, and when to break a set to disrupt an opponent. Etiquette matters too—shuffle thoroughly, keep your hand concealed, and agree on scoring before the first deal. Okrummy is a tile based cousin of card rummy, known in some regions as Okey Rummy or simply a digital Rummikub style game. Tiles usually come in four colors, numbered 1 through 13, with two copies of each and special jokers that act as wilds. Players draw and arrange tiles into groups of equal numbers in different colors or runs of consecutive numbers in the same color, placing melds on the table and often rearranging existing melds to play off them. Because table melds are flexible, Okrummy emphasizes spatial reasoning and foresight. Strong players visualize equivalent configurations—asking, for example, whether a 6 can slide from a 4-5-6-7 run to extend an 8-9-10 run for a larger drop. Managing jokers is crucial: early use can accelerate tempo, but saving one can unlock a complex reconfiguration later. Defensive play includes holding key connectors that would open your opponent’s grid, and watching the discard pool to gauge which colors are saturated. As with card rummy, rapid, tidy tile handling reduces misplays. Aviator, by contrast, is a simple multiplier game found on many online platforms. A round begins at a 1.00x multiplier that rises smoothly