There are most dangerous and extreme railways in the World. You are one of companies that operated to build a railway across one of the most extreme environments on Earth. Your train move across dangerous cliff, freezing cold iceberg and vulnerable slope. The more dangerous railways you build, you attract more audacious passengers. You not only earn money from them but also have responsibility for their safety. This is a train building game for 2-4 players. You run your "roundle engine" to build the extreme railway. During your turn, you will move your conductor around the roundel to collect essential resources and invite those audacious passengers to get on your train. Apart from that, you build the railways from bidding on those railroad blueprints. Although you can catch more passengers who want to try those exciting journeys, the railroad costs your more and more money and more and more harder to build if you don't manage your roundle engine well. When there are no railroad-blueprint cards in general supply, the game ends. Players then score for their connected rails and their locomotive. Who has the highest victory points wins the game. If there is a tie, the player who has most coins remaining wins the game. Who will be the earnest company and bring the most extreme rail travel to your adventurous passengers?