Source: SSFIV Arcade Edition PC to discourage piracy (and frustrate buyers) with 'limited' offline modethe game's Software Security Assurance protocol is no less strict. Players are required to be signed into Games for Windows Live in order to access most of the game's features and content.
In offline mode, SSFIV:AE is reduced to a sort of demo, with players limited to local play only (obviously), but also restricted to 15 of the 39 fighters and unable to save settings or challenges progress. DLC is inaccessible when playing offline, as well.
Should the GWFL connection be lost mid-game, the player is given a chance to sign back in at a "logical break point" -- but should that fail ... you're in demo mode. And if you don't live in a GFWL-supported region? Svensson calls that a "buyer-beware situation."
Prospective purchasers should also be aware that Steam and Impulse will implement their respective "security solutions" (in addition to SSA), and that Steam users won't use GFWL Marketplace to purchase DLC. "We'll provide more details on that wrinkle at a later date," Svensson notes.
Oh, Capcom. When will you ever learn?
/smh