In the game there are 7 types of resources, We produce them in the production buildings such as farm, claypit etc:
-vegetables (use for start production of other materials, recruit workers)
-meat (use for start production of other materials, recruit workers)
-wood (use for start production of other materials, build buildings, roads, clean land, and recruit soldiers)
-iron (use for start production of other materials, build buildings, roads, clean land, and recruit soldiers)
-stone (use for start production of other materials, build buildings, roads, clean land, and recruit soldiers)
-clay (use for start production of other materials, build buildings, roads, clean land, and recruit soldiers)
- gold (allow us to buy workers, soldiers, materials, and of course energy)
Each production building we can improve to level 5. Further improved buildings produces more raw materials per hour:
Vegetables:
1lvl - produces 10 for 3 hours
2lvl - produces 35 for 6 hours
3lvl - produces 90 for 12h
4lvl - produces 220 for 24h
5lvl - produces 500 for 48h
Meat
1lvl - produces 10 for 3h consumes 3 vegetables
2lvl - produces 35 for 6h consumes 12 vegetable
3lvl - produces 90 for 12h consumes 36 vegetables
4lvl - produces 220 for 24h consumes 96 vegetables
5lvl - produces 500 for 48h consumes 240 vegetables
Wood
1lvl - produces 10 for 3h consumes 1 vegetable, 1 meat
2lvl - produces 35 for 6h consumes 4 vegetables, meat 4
3lvl - produces 90 for 12h consumes 12 vegetables, 12 meat
4lvl - produces 220 for 24h consumes 32 vegetables, 32 meat
5lvl - produces 500 for 48h consumes 80 vegetables, 80 meat
Stone
1lvl - produces 10 for 3h consumes 1 vegetable, 1 meat, 1 tree
2lvl - produces 35 for 6h consumes 4 vegetables, meat 4, 4 wood
3lvl - produces 90 for 12h consumes 12 vegetables, 12 meat, 12 wood
4lvl - produces 220 for 24h consumes 32 vegetables, 32 of meat, 32 wood
5lvl - produces 500 for 48h consumes 80 vegetables, 80 of meat, 80 wood
Iron
1lvl - produces 10 for 3h consumes 1 vegetable, 1 meat, 1 stone
2lvl - produces 35 for 6h consumes 4 vegetables, meat 4, 4 stones
3lvl - produces 90 for 12h consumes 12 vegetables, 12 meat, 12 stones
4lvl - produces 220 for 24h consumes 32 vegetables, 32 of meat, 32 stones
5lvl - produces 500 for 48h consumes 80 vegetables, 80 of meat, 80 stones
Like you see its better to upgrade them than left on lvl1. If you do that you save energy because lvl5 buildings use 2 energy points within 48h (start and receive production), most of the energy in the initial phase in the
goldentowns, takes the production of raw materials.