@DandruffCat open the terminal and navigate to the directory that SPServer.exe is saved in (using the command cd [example/downloads], for example, where "[example/downloads]" is the directory that SPServer.exe is in) (or open it there to begin with, if you can... I don't know OSX), and then type mono SPServer.exe in the terminal, and enter the command.

@FlipposMC Sounds good :)

@HellFireKoder @HellFireKoder I have mono installed, now what?

@HellFireKoder My bad...I'm not all that familiar with apple...anyhow...what do you think about my raspberry pi idea?? I will definitely do it when I have some free time.

@FlipposMC you can DEFINITELY install the mono runtime on OSX (10.7 and later)... the link I gave was specifically for OSX.
The question is if it will actually work correctly... I'd say it's worth a shot...

@DandruffCat .exe files are WINDOWS ONLY . As @HellFireKoder mentioned you could in theory try to install the mono runtime however I do not think that is an option with macs. If you really desperately want to make a server for cheap and you don't have windows try...a raspberry pi 3. Despite it's funny name it is a really capable tiny computer that runs a form of linux and thanks to its diversity can also be customized to run .exe files...albeit with alot of work arounds. If you're not that computer savvy then this wouldn't be an option. However I really want to do the said things above (I already experimented with VM). If I do it I will definitely upload feedback and a tutorial...I just need some free time and a raspberry pi.

@DandruffCat .exe file is an executable for Windows operating systems -_-

You might be able to install the mono runtime, and then from the terminal mono SPServer.exe, but I'm not sure if that works on Mac, I just know it worked on my Linux Virtual Machine.

@Gestour It's all in one .exe file. This is it opened

Haha! Mac can't run .exe files, windows can, look which OS is better now

So, here's the info I was able to gain through a little research. That's not it. That's not the file. It should be a single .exe file.
I suggest downloading it again, and pay very close attention to where you save it, and what it's name is.

It seems to be opened in a program called "The Unarchiver" which leads me to believe it's compressed (Zipped).
It needs to be un compressed. Then I would read the Readme.

@DandruffCat

These are the contents of the file downloaded

@Gestour look at the post

Post a screen shot. @DandruffCat

@Flightsonic can't right now. Doing a report on Howard Hughes

@Gestour it shows the contents of an .exe package

You can join me, Bacon and I are doing the assaults again

All it's supposed to do is open a small black dialog box with some info in it.
It doesn't do anything at all?

@DandruffCat

@Gestour I download the file, but nothing runs

You need a good PC and network, or else it'll be a pain for everyone

By reading the directions on the Mod post.