> does SHOGO and HERETIC II work on MOS?

Shogo:
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=8686&forum=10

Heretic II:
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6177&forum=10&start=6

> Any recommended games [...], preferably native

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=8432&forum=10

> Which old games work so I can securely buy them ([...] NIGHTLONG [...])

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6594&forum=10

> I have Hoolywood 5.2 (will update to 5.3) but will it work under MOS?

"The following platform architectures are currently supported by Hollywood:
[...]
MorphOS (ppc)
[...]"
http://www.hollywood-mal.com