Arms Race

How to run the game on two PCs that are on the same network:

1.  Open the game
2.  Press Tilde ( ~) key
3.  Type without the quotations "open Level?listen" on the machine that will be hosting the game
4.  (Optional) Open the cmd on the machine and type ipconfig,  that's where you get the IP for the joining PC to join the game
5. Open the game on the second PC
6. Press Tilde
7. Type without the quotations "open " and <The host IP v4>

You can see, although the quality is poor, how I've set it up here: