Tera publisher En Masse Entertainment has let go an undisclosed number of staff.

The lay-offs were confirmed when digital marketing manager Evan Berman tweeted today that he had lost his job.

"Layoffs have occurred at En Masse. I was hit," reads his message.

En Masse VP of publishing Chris Lee then released the following statement:

"Today, we had to let go of some of the great talent at En Masse Entertainment. While a tough decision, it was necessary as we prepare for the next chapter of our business.

“Tera has been a great launch for us, and we are committed to our loyal players. We're taking measures to align the needs of our business to continue supporting Tera and preparing for our future.

"We are working with those affected by this transition, including offering assistance on new prospects within the industry/area. If there are companies who are looking for talented people with publishing experience, please send an email with the details to info@enmasse.com."

Tera is a subscription-based MMO, a model that – a few notable exceptions aside – appears to be largely unsustainable.

Next month the high-profile Star Wars subscription-MMO The Old Republic moves to a free-to-play model, for example.