Leadwerks is a great engine for tech demos. But for actual production, its requirements are just too high, its too focused around "use the current tech" instead of use the basic technology and extend where current tech is present but still offer similar effects (similar = have basically a similar effect but not as nice) WITHOUT a rendermonster, especially with effects that have FFP (which thanks to Intel still is the majority as vertex transformations are done on CPU on anything before X3100 which better would do it as well due to 3 FPS on Crysis Minimum Settings on DX10), SM2 and SM3 counterparts