which 8-bit computers had outstanding games ON CARTRIDGE

[Ze_ro]

I would say that for the A8 and C64, the best games on the system generally came out on disk instead of cartridge

To expand on this a little, earlier games for both systems (especially classic arcade ports, like Moon Patrol, Pac-Man, Donkey Kong, etc) work quite nicely on cartridge, since the original versions never took up a significant amount of ROM space in the first place... Much later games, especially RPG's (Ultima's, Bard's Tale, Gold Box AD&D games, Alternate Reality, etc) just couldn't function in the constraints. Hell, Pool of Radiance on the C64 used 8 disk sides! By the end of days for both computers, cartridges had more or less been abandoned.

Though in Europe, where disk drives were about as expensive as a small car, companies released cartridge versions of games until far later in the life of the systems... though you still can't get a cartridge version of Pools of Radiance.

--Zero