I have original version of game Knights & Merchants. Problem is that the game which was working ok under v1.x, now is very unstable. In most of cases of playing it will finished with global suspend of MorphOS (even keyboard is not working).

Try it with old memory allocator ('sml' as a boot option AFAIK). If the game does dirty tricks with memory allocations, it may be unstable with TLFS.

It's help a little. Game in most cases will freeze for a moment, but after all it suspend after some time.