Compiling in Unity
The basics of compiling a Unity project to an executable, used for a course I teach.
Note: this video is a bit older, so here's a quick errata:
There are now quite a few more options in the Build Settings window than the 3 shown here. Most of these are around debugging your build: sometimes you'll have a bug that doesn't appear in the editor but does in the compiled game.
As mentioned in the video, a lot of the player settings have changed since this was made