Thanks! You use the mouse to add cells, click the empty squares
If you want to try to “beat” the game (you can’t really beat the game, it’s endless), notice how when you add cells, the numbers on the left change. Each cell consumes X resources (upkeep) and produce Y resources (production) per day (the time is on the bottom right)
On the left you have the stats for the Stratum you’re on, and on the right the stats for the entire tower. Try to keep your Balance (the difference between your upkeep and your production) positive!
Each floor has different upkeep/production per cell, so experiment to see what works best