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Example of the low replicator density characteristic of B34567/S238/3.
30000 generations into a 1000x1000 toroid of 50% random fill.

It does vary a lot but this is what it looks like at a relatively low point.

Screenshot_20210612-060457_Golly.jpg

And here is 40000 generations. A somewhat higher ...

I found a P52 dirty replicator which survives for a long but unpredictable amount of time in large toroids even in a field of blocks generated by its own debris. I'm not sure how to use viewer but the rule where it frequently spawns naturally from 50% randomness is B34567/S238/3

I ran a 3000x3000 ...