A new online game that takes web users on a hunt around the net every week has been launched.

Ntrails has been developed by gaming firm T-Enterprise and requires users to pay $1 (61p) to enter. Every Sunday, the first in a series of 20 games are released. Players are directed to a sponsor's website, where they have to locate and complete the game, which is against the clock, to obtain a password that will provide them with access to the next game, when it is released.

The games are time released, so that web users from all over the world have the opportunity to take part at a time that suits them. For example, the first game in a weekly treasure hunt will be released on Sunday at 17:00 BST and the 20th game to complete the hunt will be released the following Saturday at 17:00 BST.

All of the entry fees go directly into the prize fund as well, so if 1,000,000 people have registered to play, $1,000,000 will be up for grabs.

In total, there are 20 passwords to collect. The winner will be the first to enter all 20 correctly and in order. Once the game has been won, the process will start all over again, with player paying $1 to enter and completing a new treasure hunt.

"We wanted to come up with an idea that was fresh and original and think that Ntrails.com is exactly that. The concept is not gambling; users simply pay $1 per week to enter the treasure hunt, but they have no commitment to return the following week to enter the next treasure hunt," said founder Ken Gauld.