Making oxygen in Oxygen Not Included isn’t really that complicated but you’ll soon realise that you can’t just depend on algae forever. Perhaps the hardest wall to get past in the game for new players is generating oxygen in a way that’s sustainab

Oxygen Not Included (ONI) starts you deep in an unfamiliar asteroid, in control of 3 Duplicants. The game advises you to "Start Digging." But to keep your Duplicants alive and avoid failure, you'll have to do a lot more than just dig. This g

Algae Terraria produce Oxygen from Algae and Water. Each one produces Oxygen with a rate of 40 g/s - or 44 if under light. Each one produces Oxygen with a rate of 40 g/s - or 44 if under light. You need at least three for each Duplicant (5 per 2 Duplicant