After playing three different games for Mac, The Sims 2 (ported to Mac by Aspyr), SimCity 4 Rush Hour EP (Aspyr), and Rise of Nations Gold (MacSoft), I got to a conclusion: MacSoft ports the games from Windows to OS X better than Aspyr does. I had the opportunity to play these 3 games in a PC a few years ago. It was a Pentium 4, 3.0Ghz, 512 Mb RAM, 64 Mb VRAM. My Mac Mini uses a G4 1.25 Ghz, 1024 Mb RAM, and 32 Mb VRAM. (Note that he PC has more VRAM, but the Mac has more RAM) In the Sims 2 for PC, the FPS (frames per second) where acceptable, I had a smooth gameplay, and good graphics. Same as SimCity 4 Rush Hour EP, good graphics, and great FPS rate. On my Mac, the Sims 2 FPS are always very low, and I can't keep the textures on high because the FPS go down. In SimCity 4 I turned off waves, and clouds, lowered city detail, number of sims and cars, but still the you-drive-it feature was unplayable because of the FPS. Up to this point you would say that the PC that I used had a better performance than my Mac Mini. That's exactly what I thought until I installed a MacSoft game, Rise of Nations. On the PC, the gameplay was very good, but in stress moments, the FPS could get very low. For example, in the middle of a war the FPS usually decrease, and when I dropped an atomic bomb, the whole animation which lasted around 5 seconds was done in 3 or 4 frames. But on my Mac, the FPS were surprisingly high. Even in the moment of most stress for the system, in the middle of a war, when lots of sounds and visual animations were happening, I could drop an atomic bomb and see the whole animation in 10 FPS, compared with the less than 1 that I got on the PC. In regular gameplay, with just farming, and getting wood, the FPS didn't go under 40. This event was a big surprise for me, it seems that MacSoft ports the games better than Aspyr. With Aspyr's games the performance was always worse than in PC, but with Rise of Nations, the performance was better than in PC. I don't know if the atomic bomb could have been and exception, but is there a way to suck at porting games? because it seems to me that Aspyr is doing an awful job. What are your ideas about this? What is Aspyr doing wrong? What is MacSoft doing better than Aspyr?