Someone created an x68030 port of the old horror FMV game "D". This is a port (emulator?) of the Sega Saturn version of the game, which unfortunately isn't in English.
https://exceed.hatenablog.com/entry/2021/06/18/032532
What I find so neat about this, though, is that it supports 68040 and 68060 accelerators, as well as PCM audio boards - Mercury Unit, Polyphon, and TS-6BGA. It does work on a base x68030 model or an Xellent30, but you do need one of those audio boards for the FMV audio to work, otherwise you only get sound effects.
I managed to get it fully running on my system and it works great. It's nice to find a game that can actually use rare addon hardware like this.
Wow, this seems awesome! Is there a way to play it on emulators too?
Yes, it says it should work on emulators.
I was mistaken, there IS an English Saturn version of this game, and it DOES work with this port. Just copy the English disks instead of the Japanese ones and the game is playable in English on x68030/060.