ARMA III and the standalone mod offshoot DayZ are set to be launched on Steam for Linux, if we are to believe the CDR entries.ARMA III is an open-world FPS developed by Bohemia Interactive and it's set to be one of the most realistic titles with this type of gameplay.
The action of the game takes place in 2030. NATO forces are engaged in a war against the Iranian military and some of its allies.
DayZ, on the other hand, started its life as a mod for ARMA II, but it registered a moderate success and now it's going to be launched as a standalone title.
The other part of this information is taken from the CDR database and by no means is it completely certain. The CDR Database is a record of data that describes every Steam game and subscription provided by Valve for the Steam service.
Usually, the new entries in the Steam database are first visible in the CDR Database before their official launch.