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Vanilla Extinction Farm

A very simple 3-part kill farm for getting the Extinction achievement. Just past a metric F-ton of these and go to sleep, it's slow but the best you can do without risk of your contraption bugging out because a little piece of electricity got conducted into your host.

I'd suggest using the far superior Extinction Farm I have up, which uses only one mod but significantly increases kills-per-minute.
Modded Extinction Farm: https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2418733148

(To really give you the numbers, the Vanilla EF nets ~30 kpm per unit while the original EF I have gives a staggering ~430 kpm. You'd need 71 of these vanilla thingies to match the power of even one of the OG's, so please just use the modded item and get this achievement in a way that doesn't suck.)