To further justify your position; Originality is just the unique composition of various unoriginal things. If you chase quality, originality will appear as a byproduct as you deal with the intricacies from your specific combination of features.
That is, everything interesting appears from the relationships between subjects, not the subjects themselves (the edges, not the nodes, of the graph). You could change any one major component of the game, explore it sufficiently, and you will inevitably have something sufficiently original despite 90% of the original core being duplicated — the nature of exploring the relationships thoroughly — chasing quality — will inevitably lead to a cascading series of changes until you reach the new stable point
That is, everything interesting appears from the relationships between subjects, not the subjects themselves (the edges, not the nodes, of the graph). You could change any one major component of the game, explore it sufficiently, and you will inevitably have something sufficiently original despite 90% of the original core being duplicated — the nature of exploring the relationships thoroughly — chasing quality — will inevitably lead to a cascading series of changes until you reach the new stable point