strange mac installation

For some reason, Sunless Sea was released as a package file, which requires an admin password to install. What specifically is it installing and where? How do I uninstall it?[li]

In a future release, please make it just an app bundle that you can install by dragging to the Applications folder, thanks!

It installs Sunless, READ ME.txt, and Terms and Conditions.txt into /Applications/Sunless Sea/. It also registers the bundle and writes a receipt, as all Installer operations do.

Here is the relevant portion of /var/logs/install.log, with my identifying information snipped (in spoiler tags for length):

[spoiler]installd[378]: PackageKit: ----- Begin install -----

installd[378]: PackageKit: request=PKInstallRequest <1 packages, destination=/>
installd[378]: PackageKit: packages=(
&quotPKLeopardPackage <file://localhost/Users/[username]/Downloads/Sunless%20Sea%20Setup%20V1.0.4.2130.pkg>&quot
installd[378]: PackageKit: Will do receipt-based obsoleting for package identifier com.failbettergames.pkg.SunlessSea (prefix path=)
installd[378]: PackageKit: Extracting file://localhost/Users/[username]/Downloads/Sunless%20Sea%20Setup%20V1.0.4.2130.pkg (destination=/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/85C8A9A6-A4D5-42A3-800B-00FC034EBDE5.activeSandbox/Root, uid=0)
Installer[598]: LSExceptions [0x7fce33607220] unloaded
installd[378]: PackageKit: prevent user idle system sleep
installd[378]: PackageKit: suspending backupd
installd[378]: PackageKit: Using trashcan path /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/PKInstallSandboxTrash/85C8A9A6-A4D5-42A3-800B-00FC034EBDE5.sandboxTrash for sandbox /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/85C8A9A6-A4D5-42A3-800B-00FC034EBDE5.activeSandbox
installd[378]: PackageKit: Shoving /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/85C8A9A6-A4D5-42A3-800B-00FC034EBDE5.activeSandbox/Root (1 items) to /
install_monitor[603]: Temporarily excluding: /Applications, /Library, /System, /bin, /private, /sbin, /usr
installd[378]: PackageKit: Writing receipt for com.failbettergames.pkg.SunlessSea to /
installd[378]: PackageKit: Touched bundle /Applications/Sunless Sea/Sunless
installd[378]: Installed &quotSunless Sea Setup V1.0.4.2130&quot ()
install_monitor[603]: Re-included: /Applications, /Library, /System, /bin, /private, /sbin, /usr
installd[378]: PackageKit: releasing backupd
installd[378]: PackageKit: allow user idle system sleep
installd[378]: PackageKit: ----- End install -----[/spoiler][li]
edited by Jeremy Avalon on 6/7/2016

Package files are identical to app bundles in OS X. The only difference is the appearance. In fact, you can right-click on both apps and packages and use “Show Package Contents” to look inside them.[li]

If the app was furniture, the package file would be the box it comes in. Both the furniture and the box are objects, but the main point of the package is to open and reveal the furniture.
edited by Saklad5 on 6/7/2016