From 9am today until midnight on September 10, users can pre-order the digital download copy of 'Championship Manager 2010', which features 81 playable divisions from over 30 countries.
On September 11, those who registered will then be able to download the game directly to their PC from Champmanstore.com.
Users will need to pay £2.50 for download costs, plus any additional amount of their choice, starting from just 1p.
Speaking at a press conference to announce the game's launch, Roy Meredith, general manager of Championship Manager, said: "For 15 years you've been fans of ours and you've been our supporters. We'd like to offer you something back for that support."
The move by Eidos is a first in the videogame industry.
It echoes a similar initiative by Radiohead in 2007, which allowed fans to choose how much they wanted to pay to download their 'In Rainbows' album.
Eidos said: "We're keen to see as many people as possible playing 'Championship Manager', and think this is a great way to get people playing."
The publisher is hoping its latest version of 'Championship Manager' challenges current market leader 'Football Manager' from Sega.