Yes, you may find the game in MPS' or events, however, the game is gone. If you do play death tag on the private server you will get no experience, gems, or shards. Any questions let me know. :)
To clarify, Death Tag isn't gone whatsoever. Although all arcade games are nowhere as popular as they used to be, they are still able to be queued directly through the noteblock icon in the quick compass, in an MPS or in Mixed Arcade. To clarify, Death Tag is available to be played directly through the Arcade Games menu, in an MPS, or in Mixed Arcade. I'm used to seeing Death Tag a fair bit in Mixed Arcade, so I can clarify that this game is not "dead' (at least compared to other current Arcade Games). ~~