Tier 12

Tier 12 is a type of tier. It unlocks Graphene Cash which can be mined from crystals in the radioactive mine. Each crystal has 50k durability. Tier 12 unlocks 3 new upgrades. The upgrades are: Uranium Jackpot (gives 1000x more uranium and starts at 1% chance and each upgrade will increase by 1% chance) for 1 Graphene Cash. 1.5x more Gold (increases by .5x more gold every time and works for generators) for 2 Graphene Cash. And Graphene Jackpot (gives 50x more Graphene and starts at .5% chance and each upgrade will increase by .5% chance) for 8 Graphene Cash. In order to get the next tier, Tier 13, you need 800 NoTg Cash.