There's a closed pull request on the void-packages repository

New package: simutron-1.0.1-SR2
https://github.com/void-linux/void-packages/pull/25742

Description:
Simulator for simple logic circuits and AVR microcontrollers (relies on `simavr` as a backend).
Requires https://github.com/void-linux/void-packages/pull/25741 to be merged.