Hi everyone, This question must have been asked several times before but I don't get it. I have a little game in OpenGL (like doom, quake1, etc..) which can only have 2 players (the hunter and the hunted). The game must run on a server and the clients (2) connect to it via the LAN network. I made the with the help of Nehe's and www.gametutorials.com tutorials. My question is : What do I run from the server and what do I run from the client side ? How can I send only from the server the data that have changed ? Maybe, my background on game development is to poor. If so, can you tell me about links where I can learn those things ? Thank you, Gandilf

Start with the Forum FAQ. I suggest using some available middleware library like OpenTNL or RakNet. Both are listed in the Forum FAQ.