Rotectron beta is to be released today. You will be able to download it from the downloads section of our indieDB page. This is just a beta version and there may be bugs. In case there are any or if you want to suggest something just send me a message. The beta is for windows only.
You can also download it from my website:
OS: Windows XP, 7, 8(may work with Windows 8 but not yet tested)
CPU: Intel or AMD CPU with decent speed.
Memory:1 GB RAM
GPU: OpenGL compatible graphics card with atleast 32MB video RAM.