Playing Astroneer the game asks you to unlock some gates using energy.

I opened the 1st gate which requires little energy using the basic bio-fuel generator. Later gates started to ask for more and more energy but there was nothing preventing me from just making more and more basic bio-fuel generators that were easy to mass produce if awkward to use due to having to turn all 25 of them before the 1st one ran out of fuel.

I believe the devs wanted the player to create windmills or solar panels but those would require collecting rarer materials and building platforms which in my mind was harder than just doing it my way.

If it's stupid but it works...