Gin Rummy is among the most notable adaptations; it first appeared in the early 20th century and immediately became well-liked because of its fast-paceddaman game app gameplay and focus on deft play. In order to outmaneuver their opponents, Gin Rummy players strategically discard cards in an effort to form sets & runs. This version established Rummy as a game of skill rather than pure luck in addition to adding new mechanics. Regional Impacts & Cultural Importance.