Melding is only half the job, every set you lay starts a decay timer you must keep feeding.
Form sets and runs and lay them to the table, then feed them fresh cards before their timers run out. The highest score after thirty turns wins.
Forming sets and runs is rummy, and this keeps that intact. What it removes is the assumption that a meld, once laid down, is finished.
Every set you table starts a decay timer, and it must be fed fresh cards before the timer runs out. Melds become installations to be maintained rather than points banked, and the table you have built is a standing obligation.
That changes what a good hand is worth. In rummy the incentive is to lay down as soon as you legally can; here every meld you commit to is another thing demanding cards, so the real decision is how much apparatus you can keep alive for thirty turns.
Rummy Reactor adds a maintenance-and-decay twist to classic rummy melding. It is an original free browser card game built in-house for PlayPendium.