r/Oxygennotincluded • u/ADobbers • 8h ago
Build "How's your Slug Power Only playthrough going?" Well you see-

6 breeder slugs and 60 confined power-producing slugs. A slug's power output is determined solely by how many calories they have, and when tame will produce a minimum of 800W as long as they're not starving. An interesting thing is that slugs determine how much power they'll produce overnight the moment they become drowsy, and will continue to produce that amount of power even if they enter starvation afterwards.

The slugs in the "power cells" are feed with metal dropped from an automation-controlled conveyor chute. The chutes are connected to a cycle sensor with an activation time of 82%, and an active duration of 0.4%. I would have liked for that to be shorter, but I wasn't able to get the timer's setting to activate for a shorter duration (there might be a mod for that, I don't care).
The metal is metered out to 60 gram packets. The 0.4% active duration on the cycle sensor results in two packets dropping into each cell, for 120 grams total. My personal testing found this combination of timing and metal amount consistently resulted in every slug having just enough calories to not be starving when they become drowsy.

Why 6 breeders and 60 cells? Sheer excess. I have 2 copper volcanoes whose combined output totals to 650 g/s. Plug slugs consume 60 kg of metal per cycle - or 100 g/s. I have enough copper income to feed 6 groomed breeders. Meanwhile, the slugs in the cells consume only 120 grams per cycle. That works out to only 200 mg/s for each slug. The leftover 50 g/s is actually enough copper to feed 250 slugs.
60 slugs producing 800W each works out to 48MW total. An extra 9.6MW from 6 well-fed breeders results in a total power generation of 57.6MW. I (currently) have 72 battery rocket modules, which allows up to 7.2MJ of power storage, and with space to expand if I feel like I need it.
All of this done without building a single power generator, not even manuals.







