Deep Silver and 4A Games will release a dedicated Mac version of Metro: Last Light on September 10 via the App Store and Steam.
A Linux version of the shooter is also being developed in-house at 4A and is scheduled for release later in the year.
Both Mac and Linux versions will receive the same DLC packages as the PC and console releases, while the Last Light Season Pass will be available at launch for Mac.
Metro: Last Light on Steam will support Steam Play, meaning that owners of any Steam version will automatically find the game added to their PC, Mac and Linux Steam libraries.
Deep Silver released the first of four planned Metro Last Light DLC packs for consoles last month.
"The Mac and Linux versions of Metro: Last Light are further testimony to the power and flexibility of the 4A Engine," said 4A's CTO, Oles Shishkovstov said in a statement.
"Development was handled in house by 4A games, and we are very happy with the results. We hope that Mac & Linux gamers will appreciate our efforts to create the best possible version for their machines."
In CVG's Metro: Last Light review our reviewer said 4A's sequel is "gruelling, but worth the effort" and "a refreshing change from more traditional first-person shooters".