You may have read that we're quickly running out of IP addresses. Once these addresses run out, having a new website will only be possible via shared hosting. Dedicated hosting will not be an option for new websites, and existing websites with dedicated IPs will be stuck with whatever ISP holds that particular address (good luck finding a new IP should your ISP kick you off for whatever reason). What does this mean for game developers? I can think of several problems: A shared IP address means you can't run nonstandard protocols (the ISP won't know where to forward the data), nor can you run any standard protocols that do not include the server's domain name as part of the connection request. Unless you can write your game so it only communicates via HTTP (or some other supported protocol), this means you won't be able to run your own game servers. Once IP addresses run out, IPSs will have to start placing users behind ISP-wide NATs, which means your users won't be able to open any ports your game might depend on for online multiplayer support. Your users will have no option but to play your game on private networks. Your website may be affected by the actions of others on your server. Your server could be blacklisted due to somebody else's misbehavior. Anything else to worry about?