How to get Biogas

Crafted from

Raw Materials 1 100 energy

4× Half-rotten Fish

Requires laboratory table

Raw Materials 1 100 energy

5× Mutt Meat
2× Ammonia

Requires laboratory table, flasks kit, scalpels kit

Raw Materials 1 100 energy

5× Piggy Meat
2× Ammonia

Requires laboratory table, flasks kit, scalpels kit

Raw Materials 1 100 energy

5× Boar Meat
2× Ammonia

Requires laboratory table, flasks kit, scalpels kit

Parts you gather 4

Everything above bottoms out here, through 5 recipes and 5 tiers. Amounts are per recipe, not multiplied down the chain — see the whole crafting chain →

5× Boar Meat
5× Piggy Meat
5× Mutt Meat
4× Half-rotten Fish

Used to craft 2

1× Gas Cylinder
3× Lubricants