A Heroes of Newerth Server Status Update announces their most recent scheduled maintenance has resulted in "a catastrophic hardware failure" for this DOTA-inspired game (thanks Shacknews). Word is:

During our scheduled maintenance period this morning we had a catastrophic hardware failure across a number of systems including some of our backup systems. We have the capacity and ability to recover from this failure. However, due to the extent of this failure we cannot provide an ETA on when service will be restored, we will continue to provide you updates as they are available to us.

We apologize, we would like to play just as badly as you would.