That's exactly the case. Tunngle is akin to Hamachi. I believe its free version allows for more people on the same emulated LAN room then Hamachi. As Hamachi oftenly stops working (but usually starts working again after an update), I experimented with this Tunngle a few years back, and it's also great to play CIV MP. The only down side to me was the bombardment of ads in its interface.
Luis, if you speak portuguese, and prefer talking on that language, feel free to PM me about the issue. I'm guessing this because of your account name. But back to topic: Here are a few tips for setting up an MP game of CIV:
- It doesn't matter how you're playing, you should always go to Multiplayer > Direct IP. Local Area never worked properly since the beginning of CIV. PitBoss currently doesn't work with C2C (as far as I can tell), and Play By Email and Hotseat aren't for 2 or more players playing in their respective computers at the same time.
- Done that, you must know the host's IP to put it in the IP field of Direct IP Multiplayer option. In Tunngle you can probably see this somewhere in the room you created to play with your friends (or by right clicking the host's name in said room). It can be named IPv4 (in Hamachi I'm sure it's called IPv4, but I didn't use Tunngle that many times to remember). It looks like this: #s.#s.#s.#s, where '#s' stands for 1 to 3 number digits, and those are 4 groups separated by '.'s.
You must use the IP provided by Tunngle or any other LAN emulator if you're using one. Your router will also provide you with an IP, and that should only be used if you're playing together with your friends on the same LAN.
- If you can't find this IP on tunngle, you may go to the Command Prompt on windows and type 'ipconfig'. It'll show all IPs associated with your connections, so you must search for the one related to your LAN emulator (tunngle)
- Done that you're good to go, at least from the LAN emulator and CIV MP steps. Then you must ask someone else if new issues arise, as these will probably be related to Cavemen 2 Cosmos, and I'm not well versed on that to give you any tips. I hope this helps!