First launch the game. Make sure you enable developer console in options.

Now open the console and type the following:

Now your server should be up and running with you sitting in the boat. Now look up your IP address via Google. Chuck this IP to your friends and tell them to use the following command:

Proceed to having fun with your friends in multiplayer.

You'll notice by now, you may be stuck or annoyed at the fact that everything isn't running as smoothly as you'd want it too. You and your friends should take note of the following commands:


Feel free to change X and P to whichever keys you'd prefer to use. Now you can use noclip to free yourself from being stuck in dodgy spawn points or just general crappy physics. As well as use impulse 101 to spawn in weapons (I recommend only using this once you've legitimately found weapons and then only using the ones you've found so far upon changing level).

Moving on, you'll soon notice the map doesn't change by itself in multiplayer due to changelevel2 being a single player command.

In order to change level, you'll need to keep your eyes out for obvious map change zones or simply check console frequently whenever you think you're near one. You should get a notification in the console that the game attempted to use changelevel2 but the command isn't available in multiplayer. At which point, you should open console and use the following command:


The first command will list all available maps in the game, the second will inform you which one you're currently playing and the last is obviously for changing the level to whatever map you want. The maps all have basic titles such as p1l1 so obviously the next map would be p1l2 and so on.

Some other useful commands are as follows:

Last but not least, have fun with this. I thought this game was boring as hell personally when playing alone but it was hilarious playing with my friend. We actually completed the whole game so you shouldn't have any issues doing so yourselves. Just be careful when using commands like "impulse 101" when the server is full as you can quite easily crash the server from having too many entities created at the same time. I'll eventually upload our playthrough on YouTube as it was really funny and I encourage anyone planning on playing this as a co-op game to do the same. Enjoy and happy fragging.




Also, please keep in mind this game is extremely buggy and making it multiplayer co-op makes it even more unstable than it already is. If you have any questions, feel free to ask. :)