Tree of Decay

To unlock Tree of Decay, you must buy the mastery study "Unlock Tree of Decay" which costs 1e95 TT, after obtaining 16 Nanofield rewards. Once bought, you are immediately brought into a new tab with it displaying your unstable quarks and upgrades. You will get the achievement "Do protons decay?" when you unlock Tree of Decay.

The Tree of Decay has three branches, one for each color of quark. Each branch has 2 corresponding currencies: unstable quarks and quark spin. Quarks assigned to a color can be converted into unstable quarks of the same color. The base exchange rate is 2*(log10(quark)-420)^2. Unstable quarks will slowly decay into quark spins at a rate of 50% every 16 seconds (this can be increased/decreased with red/green/blue branch upgrades).

Quark spins can be used to buy upgrades that affect their branch of the tree, as well as other upgrades, located in the fourth tab.

The branch-specific upgrades control the rate at which quarks decay and how much spin you will get from them. The upgrades are as follows:

Description	Base cost	Cost growth
Gain 2x quark spin, but quarks decay 2x faster. Note: This upgrade has lower effect starting from level 120. Past level 120: each level gives x1/2 instead. Past level 360: each level gives x1/3 instead.(and so on) Between level 60*(n-1)*n and level 60*n*(n+1), each level gives x1/n.	300	2x Past level 15: 8x (at ~9.83e6)
The gain of unstable quarks is multiplied by x and raised to the power of x. (x is multiplied by 2 per upgrade.)	50	4x Past level 8: 8x (at ~3.27e6)
Unstable quarks decay 4x slower.	4e7	8x Past level 7: 16x (at ~8.39e13)

There are 8 additional upgrades in the "Tree Upgrades" tab. They all cost red spin at first, but will cycle through red, green, and blue when an upgrade is bought. It will increase in cost each upgrade.

Description	Base Cost	Cost Growth	Cost Growth^2	Cost Growth^2 Starts	Formula
Meta Dimension Boosts are cheaper	50	x4	x2	36	$-30n$
TP gain formula exponent is increased	600	x16	x4	1	$+0.25n$over level 64: $+(n+128)/3$
All branches are faster based on how many tree upgrades you bought	3e9	x32	---	---	x $2^{\sqrt{\sqrt{3n-2}*(TotalLevel-10)}}$
Electrons boost is increased	1e12	x2	x2	38	^ $\sqrt{1+log_{10}(0.5n+1)*0.1}$
All branches are faster based on your best-ever meta antimatter	4e12	x2	x2	36	* ${(\frac{log_{10}{(log_{10}(BestEverMA+1)+1)}}{5}+1)}^{\sqrt{n}}$
Emperor Dimensions are faster	6e22	x16	x4	1	*2n
Replicanti boost dilated time production	4e22	x16	x256	1	* ${(log_{10}(Replicanti)+1)}^{0.25n}$
Your best-in-this-quantum meta antimatter makes meta antimatter effect stronger	3e23	x2	---	---	* $log_{10}{(log_{10}(BestMA+1)+1)}/4*\sqrt{n}$

After reaching e1.126 quadrillion(10^2^50) unstable quarks and ghostify once, you can buy an upgrade called "Radioactive Decay", which will greatly decrease unstable quark gain, but also boost the power of the first upgrade. Radioactive decays are unique to each branch and can be bought multiple times, with each successive purchase further reducing the amount of unstable quarks gained.

Each time a radioactive decay upgrade is bought, the name of the unstable quarks will change from simply "unstable quarks" to "radioactive unstable quarks", "infinity unstable quarks", "eternal unstable quarks", and "quantum unstable quarks". After buying the upgrade more than 4 times, they will gain an additional prefix, "ghostly", which is incremented similar to powering numbers (^2, ^3, etc).

Radioactive Decays (Name)	1st Branch Upgrade Effect (Quark Spin/s,QK Decay Speed)	2nd Branch Upgrade Effect (Levels you start with after reset, UQK amount to decay linearly)
0	2.00x,2.00x	0 Level,1 UQK
1(radioactive)	2.14x,2.00x	-25 Level,3.36e7 UQK
2(infinity)	2.30x,2.00x	-50 Level,1.13e15 UQK
3(eternal)	2.46x,2.14x	-75 Level,3.78e22 UQK
4(quantum)	2.64x,2.30x	-100 Level,1.27e30 UQK
5(ghostly)	2.83x,2.46x	-125 Level,4.25e37 UQK
Exactly value	2*2n/10,2*2max(n-2,0)/10	-25n Level,225n UQK