Darksoft, in collaboration with Apocalypse (who is also currently working on other mutlis) have recently announced that they will be developing and releasing a multi kit for Capcom’s CPS1.
It all started with an interest check thread on arcade-projects.com in late 2017 that has now turned into a quasi pre-order list.
A CPS1 multi surfaced a couple of years back but it was only sold in France through neo-arcadia.com by user “aje_fr”. (http://www.neo-arcadia.com/forum/viewtopic.php?t=45917)
Finally arcade enthusiasts can get their hands on one of the most beloved systems of all time (Street Fighter II first saw the light of the day on the CPS1, so that alone says a lot) and experience its superb library on original hardware. Darksoft has made some excellent and highly regarded products like the CPS2-multi and Neo Geo-multi so I’m keeping my hopes up for this one.
For a complete list of CPS1 games check: http://www.system16.com/hardware.php?id=793
Darksoft/Apocalypse ‘s CPS1-multi thread: https://www.arcade-projects.com/forums/index.php?thread/4564-interest-check-darksoft-apocalypse-cps1-multi-official/&pageNo=1