Design and Simulation Software

[Xenos]

I am getting back into tinkering with electronics after taking a 15+ year break. In the early 2000s, I purchased a very comprehensive program that I used for designing and testing circuits, but I cannot remember what it was called for the life of me. I remember I had to install several individual software packages for different components. It had a drag-and-drop interface that looked similar to a 2D schematic. I looked through the list of programs on the sticky and visited the websites, but nothing rings like that old program. Unfortunately, I do not have access to the computers I used it on, nor the purchase history of the program. As such, I am searching for a replacement. What do you find is an easy-to-pick-up circuit design and emulation program? I am rusty at electronics, so the easier, the better. Thanks in advance!

[RoGeorge]

You may want to try LTspice, probably the most used now, it's free for non-commercial use.
https://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html

There are many other simulators (also free):
https://www.eevblog.com/forum/eda/qucs-qucs-s-and-qucsstudio-simulators-are-not-the-same-thing/

For PCB design, try KiCAD, same price.
https://www.kicad.org/

All of the above have plenty of online tutorials and documentation.

[Xenos]

Thank you, RoGeorge. I downloaded and ran Micro-Cap 12, LT-Spice XVII, and Qucs Studio. So far (based on user interface alone and not functionality because I have not used them enough to compare), I like QucsStudio above the others. Thank you for the tips!

[RoGeorge]

Welcome back to electronics, and happy tinkering!