Hello, this is my suggestion, we could create new products to SELL, like:
-Transport vehicles instead of the tickets and you can use them 10 times with one of Q1, 15 Q2, 20 Q3. Need 3 worker tickets per unit.
-Storage production, Q1 to Q5. Need 7 worker tickets per unit.
-Roads, works like the hospitals and defences, increase the live of the transport in 5 and could be damage during battles. Need 30 worker tickets per unit.
And change the name of he House Factory to Civil Factory, the you can select which one make.