First (20G)
The Shaker splits Wet Sand into Gold and Residue, so it is the whole point of
the opening hour. Nothing else matters until this 20-Gold node is bought.
Checkpoint: Gold drops out of the first Shaker once Wet Sand reaches it.
Second (30G)
One cheap purchase grants both the Conveyor Belt and the Launcher, ending the
hand-carrying phase. It is the most efficient 30 Gold in the tree.
Checkpoint: a Conveyor Belt carries material forward without your hand on it.
Third (400+500G)
The Flamethrower burns Residue into Burnt Residue, and the Kinetic Press turns
that into a second Gold payout plus Seeds. Together they roughly double what your Wet Sand is worth.
Checkpoint: Residue stops piling up and Gold comes out of the Press.
Fourth (2000G)
Wet Seeds planted on a Planter Box grow into Flowers that drop Gold and Amethelis,
opening the renewable farming branch that digging alone cannot provide.
Checkpoint: a wet Seed planted on the Box grows into a Flower.
Fifth (2500G)
This Tier 4 node unlocks two machines: the Steam Dryer, which presses Amethelis
into Dry Amethelis, and the Condenser, which condenses a gas like Florin into the
liquid Florinol that feeds the Energy system.
Checkpoint: the Steam Dryer and the Condenser each turn their input into an output.