The Crystal Space page has the second 0.15 beta release of the Crystal Space free 3D engine. Here is the note on the release: "A LOT has changed compared to 0.14 and also to 0.15r001. Note that 0.15 is only a beta release. There are no guarantees of anything. It may not even compile. But I'm confident that it should work on most platforms. This beta (0.15r002) corresponds to a CVS snapshot of 23 February 2000."