Upon odering X10 I knew I couldn't have full effects because of my system specs...
Windows Vista Home Premium
Intel Core 2 Duo 1.80GHZ
Nvidia Gefore 8600 GT 256mb
2GB Ram
When I got it I ran 2 tests that ran pretty well, simple tests with only a few characters, then let my brother have a go, with absoultley loads of lag! Later he gave up and I had another go at making a level, I had fog, bloom and water effects and no lag, there were 7 enemies in total and the level was very small, two only appeared later, it ran fine and I was very happy with it. Once I had finished with It I built it in 2 minutes (with lightmaps best for performance) So I was very happy with it.
Later I experimented with a level, making aliens only pop out when you got near, it looked great and solved all my charater lag problems, so will be a very useful trick in the future. I can hardly use any effects, I turn dynamic shadow on (shadow strengh ect.) and kaboom! my game is dead with lag. Same with water reflaction and refraction (can still have water). Overall I'm very pleased with it considering my specs, I still can't figure out how to use the ragdoll physics, can someone tell me?
This is worth buying, the graphics look great even on my specs. Hope some people find this useful when thinking about buying.
-Shadow Blade