Multiplayer Client Promotion

Hey, I just started getting a few of my gaming group into Offworld Trading Company and a few more have expressed interest but are hesitant to buy the game. I'd just gotten two more into it through the Free multiplayer client and had hoped to pull more people into the game however the promotion seems to have ended last night without any announcement.

Is there any way to get access to the Multiplayer Client version of the game as of now or is it as it appears and the promotion of the online only game has ended?

Thanks so much for your time and the great and unique game!