Board Thread:Game Discussion/@comment-28412524-20160728062309/@comment-26388545-20160729032326

85.216.166.126 wrote: Any advice for order of upgrades to reach PR 94? According to table here on wiki it should be 3333333 but it has to be upgraded in specific order, otherwise I reach only 93.9

I don't know when it got changed, but upgrade order doesn't matter anymore.