RPCEmu ... you'll find the games run both full screen and with sound.
That's good to know, I did not know that RPCEmu can run the old games and apps if an older OS is used.
I'll try it out, and if ArcEm is indeed redundant / superfluous, I can get rid of it.
In addition to the games, I'm interested to run Sibelius, which is a lovely piece of software.
I entered dozens of classical violin scores into Sibelius 7 on the Acorn, had a mad scheme to be a public domain music publisher!
"Artist's Edition" I called it. I probably should buy the PC version too, so I can keep those scores alive. Binary files, ugh.
edit: RPCEmu can work with RISC OS 3.6, but Zarch does not work.
I tried also with RISC OS 3.1, but it would not boot that OS.
Can you show a config file so RPCEmu will boot RISC OS 3.1, as you suggested it can?