SimCity 3000 Unlimited's customization doesn't end here. Thousands of SC3U users all over the world routinely create buildings, scenarios, landmarks and cities that you can import into your games. Unfortunately, Maxis has elected not to support Linux on the official trading floor of these add-ons, the SimCity Exchange—bad Maxis, don't you love us? Luckily, Loki's provided a list of alternate sites where we can achieve the same level of customization (without the need for that OS from Redmond) in their SimCity 3000 FAQ at: http://faqs.lokigames.com/faq.php3?view=index&product=SC3K. This great resource also answers dozens of other SC3U questions, like how to make it work with esound or build a highway on-ramp, etc.