The Institute has three tech trees. Purchasing an upgrade from one tree does not lock you out from the other trees.
'''===Reset=== Resetting''' one tech tree costs 10 [[Resources#File:Diamonds.png|25px|diamondslink=http://wiki.bacterialtakeover.com/index.php?title=Diamonds]] 10 and returns the spent Dark Matter back to the player. There is no limit to how many times a tech tree can be reset and the price for each reset does not increase.
==BPS tree==
