needs the progression to be smoothed out, faster first round and slower later rounds, potentially offering a prestige reward before 3 rounds are done. an upgrade to make auto cursors choose domino's better instead of just random would also be good. having the auto push upgrade cheaper would also be a good idea (1000?).
When I think domino's i think large lines collapsing so this felt a little underwhelming with only 3 at the start and 7 by time the i lost interest.