Xhomer
From Computer History Wiki
Xhomer is a simulator for the DEC Professional 300 Series, especially the model "Professional 350". It is based on the PDP-11 CPU core from the SIMH simulator and comes with hard disk images for P/OS V3.2 and Venix V2.0 as well as installation floppy images.
The simulation of the graphics of the Professional 350 is particularly impressive.