Harvester Tiers | Factory Simulator Wiki | Fandom
For more infomation about Machines, go to Machines For more infomation about Trees, go to Trees For more infomation about Ores, go to Ores For more infomation about Quests, go to Quests Tiers are a form of progression in Factory Simulator. Tiers can be bought by clicking on the 'Upgrade' button on the sign board explaining the next tier's benefits. Each tier unlocks new machines, purchases and ...