Not really a demo this is the actual project, goes up to day 15 if you can stop people dying.
But it says on the last day (16) the end of demo...
more semantics for me day 15 is the last of this build and it ends at the start of 16 without showing anything of day 16. So day 15 is the last day but the build goes to the end of day 15, so just semantics.