King of Dragon Pass is a 1999 computer game published by A Sharp. Set in the fictional world of Glorantha, it depicts the lives and fortunes of one of several barbarian clans, settling the untamed lands of Dragon Pass over the course of several decades.
The publisher still supports the game and has ported it to iOS. For people who still want to play it under classic Mac OS, they sell CD-only copies at their website for $19.99 (as of 3/21/12). If someone wants a boxed copy with docs, they'll have to look on the used market.
For those with older copies, they have made a version 1.7 update available at http://www.a-sharp.com/kodp/update/mac.htmlCompatibility