[quote name='Shimrra']Do you need to be online to play this game or can you play offline?[/QUOTE]
SP Patch 1.2
There is a SP portion to the game -- which only requires you have the CD in the drive to boot the game up and play all by your lonesome self. The SP version IS NOT as patched-up as the MP portion of the game and is lacking some of the extra content the MP has. The SP is patched-up to SP Version 1.2 currently.
SP Patch 1.2 does NOT contain any of the additional Stonehedge content. Also, it does not contain any of the additional Abyss Chronicles content, either.
Official MP Patch 1.3
Meanwhile The MP is up to MP Version 1.3, officially.
Also, if you are an active "Monthly Subscriber" or a "Founder Subscriber" (Lifetime Subscription), you will have additional MP-only Stonehedge content.
Beta MP Patch 2.0
Meanwhile, "Monthly Subscribers" and "Founders" right now can test out a Beta Version of MP Version 2.0 -- which is not complete and has not been released as a final version yet. Yet, many have praised this Beta version b/c of its improvements in many regards; in-game performance, new graphics features, new boss battles; new items; etc.
Beta MP Patch 2.0 offers the new MP-Only Abyss Chronicles content, for "Subscribers" and "Founders."
About The MP Situation
Given the current situation w/ Flagship firing most of its employees and Hanbit trying to buy-out HGL and Mythos IP's from Flagship, who the hell knows how much longer the MP might actually be around up and all. You'd have to hope that regardless of who has the HGL IP, they want to keep the MP servers going in the USA.
If worst comes to worst and the USA MP support is pulled, we might be left w/ only SP Version 1.2.