Thanks all for submitting your specs. You all got much more powerful machines than I do. This is not good at all .
Okay. Here it comes: ~2 GHz (Athlon XP), ATI Radeon 9600 , 512 MB RAM (I don't even remember if it is DDR or SD), XP SP2...
At least I got Lazarus/GLScene running now. But I think a serious game isn't possible without octree or bsp structure of scenes. I considered using OpenBSP but then I saw the official source (http://www.osmanturan.com/) is ... "Under construction"... Fine. There is an old bundle of Lazarus/GLScene/Quark/OpenBSP (http://www.skinhat.com/3dpack/) by skinhat. Since I prefer GtkRadiant and no old precompiled packages I would like to get the latest (preferable SVN) source of the OpenBSP compiler. Any ideas where to get it (OpenBSP is not listet at sourceforge)?
Alternativly I would also consider using other Bsp/Octree compilers as long as they are free and usable together with Pascal. Bsp prefered to Octree because indoor scenes would be the majority. Any ideas?