have access to two mac computers. One runs Yosemite, the other runs Sierra. When I "download" the game on an updated copy of steam, it "downloads" 0 of 0 kb, and immediately installs it. It does create the library folders Library\Application Support\Steam\steamapps\common\OxygenNotIncluded\EmptySteamDepot, but nothing else is in "OxygenNotIncluded" or "EmptySteamDepot" folders. I have verified my cache, and I tried enabling the "Archive_branch" beta in the properties of the game on steam, which is the only beta available. No luck! It says it can't play because the executable is missing, which makes sense given the empty folders.
Steps to Reproduce
Launch & update Steam on a mac computer. Attempt to install and play Oxygen Not Included.
This issue has been closed either because it is not a bug or does not belong in the bug tracker.