Over 15,000 Left 4 Dead fans have joined together on Steam to campaign against and boycott the release of Left 4 Dead 2.
They claim Valve has not fulfilled promises of extra content for L4D, and that the announced innards of L4D2 do "not warrant a standalone, fully-priced sequel".
Their Steam community page (picked up by vg247) requests that Valve "honour" its original commitment to ongoing periodic content for L4D, that the sequel become a free update or that existing L4D owners be given a discount.
Valve speaker Doug Lombardi addressed fan fears about Left 4 Dead 2 on Friday, stating that the company has not "closed the book" on new content and more support for L4D1. He even promised that "there's more content coming for Left 4 Dead in the fairly short term".
"I think the short answer is: trust us a little bit," he said.
Left 4 Dead 2 adds five new campaigns, four new characters, the city of New Orleans, melee weapons, reworked guns, new ammo, new bosses, gauntlet moments, a Wandering Witch, protected Infected, limb loss, a new unannounced game mode and more control for AI directors.
The sequel is due out on 17th November for PC and Xbox 360.
Head over to our E3 hands-on impressions of Left 4 Dead 2 to find out more.