升级免费版100 Points Tractor Lite is a popular four-player card game in China. Players have the option to play with one deck or two decks of cards. When playing with one deck, it is also known as "40 points" or "打百分". When playing with two decks, it is known as "80 points" or "拖拉机".

Just like the game "升级", the gameplay of "拖拉机" involves four players competing in pairs to score points. The game is characterized by its simple rules and strong competitiveness. "拖拉机" retains the advantages of "升级" while adding more cards (from 54 to 108) and removing the restrictions on scoring with the bottom cards, making the game more dynamic and exciting.

With gameplay variations such as "对牌" (pairing cards) and "拖拉机" (hence the name of the game) and additional rules like "双抠翻倍" (double digging for doubling points), "拖拉机" offers a highly entertaining and thrilling card game experience.