MathGuy42 said:I wouldn't assume all the Online achievements are dead yet until someone tests them. The achievements like "Play a 4 player game" might use Peer to Peer connections. On the other hand, I strongly suspect anything requiring uploading, downloading, or the 3.0 Arcade is dead now.
The first game runs on peer to peer for the two multiplayer achievements but I believe the servers for 2.0 and 3.0 are all completely gone.
As for the one user that got achievements in the Windows version, maybe someone should just ask them? 300k GS so I doubt they would be stupid enough to outright hack so maybe some exploit exists.