Upgrading is also known as double promotion, tractor, 80 points, land speculation, beating the waiter, fifty K.

Upgrade is a very popular 4-player poker game in China. You can choose one deck of cards, two decks of cards, or three decks of cards to play. When playing a deck of cards, it is also called "40 points" or "playing a hundred points" or "510k"; when playing two decks of cards, it is also called "80 points". In some places, it is also called "beating the waiter", "Tractor", "Land speculation", "Fifty K", etc.

Dole upgrade includes upgrade of three decks of cards and double upgrade of two decks of cards. In the double promotion of two decks of cards, it includes classic gameplay, bottom speculation gameplay, five masters crossing the river gameplay, continuous play gameplay, etc.

--------Dole upgrade features--------
[Fresh interface]
The upgraded tractor game specially created by the Dole team is specially adapted for mobile phones and tablets, giving you a high-quality visual experience. The tractor special effects are displayed, and the 80-point score is displayed on a board, which is clear at a glance!

【Easy and simple】
The Upgrade Tractor game intelligently selects cards. Select cards with one finger. It is simple and convenient. Playing Upgrade Tractor to double upgrade, it is so easy to score 80 points.

【Single player record】
Who says leveling up alone is boring? After playing the Double Up game, you can record the results in one round. The number of wins and losses will be constantly challenged. The Tractor will make you soft, the 80 points will get the eyesore, and the Double Up card will be played to the extreme. The fun is comparable to the upgraded real-life version. It’s super data-saving and can be played without an internet connection.

[Rich gameplay]
Classic gameplay, bottom speculation gameplay, five masters crossing the river gameplay, continuous attack gameplay, etc. Holding a tractor in hand and scoring 80 points in double promotion, you can turn over and become a banker!

【Classic Reappearance】
The classic double-up to 80 points includes doubling the caller, doubling the bottom, and penalty points for discarding cards. A series of technical double-up experiences create classic gameplay for you.

Upgrade the tractor and get 80 points for double upgrades. If you play land speculation and get double upgrades, come to Duole to upgrade and enjoy the excitement! It can be called a classic masterpiece of upgraded tractor games on the mobile terminal.

--------Upgrade everywhere, be happy anytime and anywhere--------
Duole Upgrade is a casual card game launched by the Duole team for the general public. The game has beautiful graphics, rich content, challenges are recorded, and replays are recorded. Allowing you to enjoy double upgrade anytime and anywhere.