as of right now they are using 4.6 which is not compatible with newer builds of windows 10. build 19041 is limited to 4.5. you might ask me what my hardware is. my amd hd 8330 supports 4.6 but, build 19041 does not. i know that i can run them in windows 7 on my gt 630m and gtx 650 ti boost and in windows 8.1 on my gtx 770m but, most people can not. changing to opengl 4.5 would make the game compatible with more systems.