First of all no, not the standalone, just the mod. But DayZ has finally arrived on Steam. This move should make DayZ even more accessible as it doesn't require installing any other third party software or messing with launch parameters. Admittedly easy makes it a bit more limited without an option to relatively easily install other mods and maps on top but it will save any hassle for anyone who just wants to try out the base mod. This also should boost the mods popularity once more. I know my DayZ character has been asleep for too long and it's time to wake up!