Qucs is a GPL circuit simulator. And if you want the GUI option, you might want to try out QucsStudio, which uses Qucs under the hood, and is free to use, but binary-only.

Santa Cruz, Calif. Promising a low-cost approach to chip design, startup Tenko Technologies Inc. (San Jose, Calif.) is going into beta test with CvSDL, a C++ class library for design and verification.

PC Building Simulator has received its fair share of DLC, mostly in the form of different workshop environments that are entirely cosmetic. However, it did get an esports expansion that’s a ...