The city of steam is a 3d web page mmorpg[1] developed by simon menga network technology ltd. The game combines traditional magic with the industrial age of machines and magic for players. The game will give priority to the north american market. The game story plotted mr. David lindsay's novel the new era. On february 27, 2013, the city of steam emerged as one of the three domestic games that came to the fore, with spectacular images of the great game world and the rare steam punk style of mmo. The city of steam has 360 degrees of camera rotation of pure 3d images, which brings players a new web game experience that can play 3d net games in browsers without a client. In addition, the city of steam has introduced a three-d feature replacement system. The games include 10 optional races and four independent professions with their own distinctive appearances. The players can define their roles entirely according to their preferences. The game offers a wide range of self-defined options for players to create their own rare role images. Type of attack: long-range matching: secret magic, shield, occupational armor: coats, chemistry, electricity characteristics: long-range element injury, high-intensity assault, self-benefiting strength team positioning: the main output in the team, the talent of the secretist dps, is divided into the flames, frost, and lightning, according to the type of element controlled. They direct the ubiquitous elements of the air to give devastating blows to the enemy who dares to approach. Type of attack: long-range combination of gun, shield, professional armour: fur, locknail, chemical: flexible, high injury, multiple control skills team positioning: long-range physical output, significant loss control skills real shooters show the world the infinite potential of gun art with their demagogized shooting techniques guardian type of attack: close-to-field combination of po: blade, shield occupational armour: high bloodproof, very resistant, team-to-man, team-to-man empowerment team positioning: physical shielding in team, attraction of monster hatred, provision of team-to-man gain at the front end of the battle, with strong body, strong armor, and the bravery of the battle posture team mates. As knights, personal bodyguards, generals, maybe even fighters!