press release issued on Steam today, Valve announced that it now offers something of particular value to MMOs on the platform: subscription plans. Gamers can now subscribe to MMOs on Steam and manage recurring payments to those games using Steam itself.
With Subscription Plans, Steam offers gamers the ability to sign up and manage payments for subscription-based games on Steam. [...] Steam customers may now sign-up for, manage, cancel or renew game Subscription Plans at any time, online directly through Steam.On the front lines of this new Steam feature is none other than subscription-based sandbox MMO Darkfall Unholy Wars, which relaunched just last week.
Valve promises that "additional subscription-based games [will] follow" and posted a lengthy FAQ to ward off the tinfoil hat crowd.