来自出版商的介绍：

1899年7月11日早上10点。承载着47名乘客阿联合太平洋快车离开了新墨西哥州的福尔瑟姆。然而没过多久，急促的脚步声便从车厢顶上传来，随后一声枪响更让整节车厢弥漫着紧张的气氛。武装盗匪们即将无情地掠夺这些无辜公民的珠宝和钱袋！

这些大盗能保持冷静的头脑并躲过对手的子弹吗？他们能成功夺取尼斯山谷煤炭公司装在手提箱中的不菲财富吗？

感受西部电影般的游戏体验，穿越到美国历史上最著名的火车大劫案中，通过你的行动来肆意妄为。掌握列车上的局面，躲避敌人的子弹。成为神枪手的荣誉和富甲一方的机会都将在狂野西部中诞生，成败在此一举！

欢迎来到狂野西部，这里没有规矩也没有原则，要成就你的金钱帝国，只有豁出一切！

On the 11th of July, 1899 at 10 a.m., the Union Pacific Express has left Folsom, New Mexico, with 47 passengers on board. After a few minutes, gunfire and hurrying footsteps on the roof can be heard. Heavily armed bandits have come to rob honest citizens of their wallets and jewels. Will they succeed in stealing the suitcase holding the Nice Valley Coal Company's weekly pay, despite it having been placed under the supervision of Marshal Samuel Ford? Will these bandits hinder one another more than the Marshal since only the richest one of them can come out on top?

In Colt Express, you play a bandit robbing a train at the same time as other bandits, and your goal is to become the richest outlaw of the Old West. The game consists of five rounds, and each round has two phases:

Phase 1: Schemin' Each player plays 2-5 action cards on a common pile, with the cards being face up or face down depending on the type of the round. Instead of playing a card, a player can draw three cards from her deck.
Phase 2: Stealin' The action cards are carried out in the order they were played, with a player's best laid plans possibly not panning out due to mistakes and oversights!
The game takes place in a 3D train in which the bandits can move from one car to another, run on the roof, punch the other bandits, shoot them, rob the passengers, or draw the Marshal out of position. The train has as many cars as the number of players, and each car is seeded with gems, bags of loot or suitcases at the start of play.

Each player starts a round with six cards in hand, with each card showing one of these actions. At the start of a round, a round card is revealed, showing how many cards will be played; whether they'll be played face up or face down, or individually or in pairs; and what action will occur at the end of the round (e.g., all bandits on top of the train move to the engine). You can pick up loot, gems or suitcases only by playing a "steal" card when you're in a train car that holds one of these items — but since everyone is planning to get these goods, you'll need to move, punch and shoot to get others out of your way. You can punch someone only in the same car as you, and when you do, the other bandit drops one of the goods he's collected and is knocked into an adjacent car.

Each player's character has a special power, such as starting the round with an extra card, playing your first card face down, or pocketing a bag of loot when you punch someone instead of letting it hit the ground.

You can shoot someone in an adjacent car or (if you're running on top of the train) anyone in sight, and when you do, you give that player one of your six bullet cards; that card gets shuffled in the opponent's deck, possibly giving her a dead card in hand on a future turn and forcing her to draw instead of playing something. If the Marshal ends up in the same car as you, likely due to other bandits luring him through the train, he'll be happy to give you a bullet, too.

At the end of the game, whoever fired the most bullets receives a $1,000 braggart bonus, and whoever bagged the richest haul wins!