History VideoGame / TheTreeOfLife

** The Lung challenges are named after various parts of the respiratory system.

* DiscardAndDraw: There are many points where newer content disables or outright removes weaker older content to make way for stronger effects.
** There's a bunch of upgrades which provide new effects but remove some previous effect, mostly to reduce the number of calculations needed per tick.

** A bunch of upgrades and milestones in the Organs layer disable the positive effects of Anti- challenges, with even more upgrades disabling the effects of gems, before eventually the Life layer altogether gets disabled.

* DiscardAndDraw:

** Anti- challenges in the Life layer provide powerful boosts upon completion, but they also disable content from previous layers (though a lot of it would have become obsolete by that point anyway).
** Several upgrades and milestones in the Tissues layer also nullify token upgrades until those get removed once you unlock the Token II feature.
** A bunch of upgrades and milestones in the Organs layer disable the positive effects of Anti- challenges in exchange for better effects, before eventually outright disabling the Life layer altogether.

** Some upgrades and milestones in the Organs layer disable the positive effects of Anti- challenges in exchange for better effects.

** Two of the Organ milestones provide massive boosts but in exchange disable the positive effects of all Anti- challenges.

* DoubleUnlock: The Humans layer is ''filled'' with these in both Upgrades and Milestones. Several milestones and the later upgrades have partial effects that only take effect after the player reaches certain amounts of Plants, Thoughts, or Humans, essentially making them sub-milestones.

* GamblingMinigame: C has you press a button to gamble every five seconds and get different suits appear in up to ten slots. You gain C Points based on different results and can spend them on upgrades.

** The level cap for Taxonomy buyables is 400. The Chromosomes III upgrade increases that by 4*(Chromosomes-37), eventually capping at 850. Then the Chromosomes VIII upgrade increases that by 3*Chromosomes, going as high as 1100. Then the Chromosomes 14 milestone increases that further by Chromosomes - 234, up to 1210. Chromosome Milestone 29 then replaces that with 1500+Nucleuses, but Chromosome Milestone 32 reduces that to 1200+Nucleuses. Some other upgrades and Truly Chromosomeless also affect the cap, but the main affecting factor in the end is Human Milestone 44 which makes it 10*Plants (which is further boosted by Human Milestones 71 and 95) and is expected to go above 1e20 by the endgame.

The game is playable [[https://raw.githack.com/pg132/The-Modding-Tree/evolution/index.html here]].

** Some upgrades in the Science layer make obsolete tabs inaccessible. Those include N Sci V to Hydrogen Science, Protein Sci II to Oxygen Science, Protein Sci X to Carbon Science, and Protein Sci XXIX to Nitrogen Science.

** Humans are softcapped at 1e56000 before you beat the Left challenge to prevent Life Points from inflating too much.

* AlphabeticalThemeNaming: The Minigame sidelayer has minigames and points simply named A, B, C, D, and E.

* ExactlyWhatItSaysOnTheTin: The tissue layer has upgrade tabs called "Start", "Middle", and "End", each one corresponding to how far you got into the layer.

* XMakesAnythingCool: The Chromosome layer is marked as X. Downplayed as it's likely named after the well-known X chromosome, and the letter C was taken by Cells, while two letters are reserved for sub-layers.

The game is playable [[http://raw.githack.com/pg132/The-Modding-Tree/evolution/index.html here]].

* DifficultyLevels: Outside of the default difficulty, there's Easy (all bulk buying is done by default, 2x prestige currencies and 4x passive gain currencies gain up to Genes, and pre-Phosphorus resource gain ^1.001), Hard (most passive gains are divided by 4 and other small nerfs), and [[HarderThanHard Extreme]] (most currency gain as well as mRNA and tRNA base is ^.75). You can match the three difficulty options however you please.

** The level cap for Taxonomy buyables is 400. The Chromosomes III upgrade increases that by 4*(Chromosomes-37), eventually capping at 850. Then the Chromosomes VIII upgrade increases that by 3*Chromosomes, going as high as 1100. Then the Chromosomes 14 milestone increases that further by Chromosomes - 234, up to 1210. Chromosome Milestone 29 then replaces that with 1500+Nucleuses, but Chromosome Milestone 32 reduces that to 1200+Nucleuses. Some other upgrades and Truly Chromosomeless also affect the cap, but the main affecting factor in the end is Human Milestone 44 which makes it 10*Plants (which is further boosted by Human Milestones 71 and 95) and is expected to go above 1e16 by the endgame.

** The level cap for Taxonomy buyables is 400. The Chromosomes III upgrade increases that by 4*(Chromosomes-37), eventually capping at 850. Then the Chromosomes VIII upgrade increases that by 3*Chromosomes, going as high as 1100. Then the Chromosomes 14 milestone increases that further by Chromosomes - 234, up to 1210. Chromosome Milestone 29 then replaces that with 1500+Nucleuses, but Chromosome Milestone 32 reduces that to 1200+Nucleuses. Some other upgrades and Truly Chromosomeless also affect the cap, but the main affecting factor in the end is Human Milestone 44 which makes it 10*Plants (which is further boosted by Human Milestones 71 and 95) and is expected to go above 1e15 by the endgame.

** The level cap for Taxonomy buyables is 400. The Chromosomes III upgrade increases that by 4*(Chromosomes-37), eventually capping at 850. Then the Chromosomes VIII upgrade increases that by 3*Chromosomes, going as high as 1100. Then the Chromosomes 14 milestone increases that further by Chromosomes - 234, up to 1210. Chromosome Milestone 29 then replaces that with 1500+Nucleuses, but Chromosome Milestone 32 reduces that to 1200+Nucleuses. Some other upgrades and Truly Chromosomeless also affect the cap, but the main affecting factor in the end is Human Milestone 44 which makes it 10*Plants (which is further boosted by Human Milestones 71 and 95) and is expected to go above 1e14 by the endgame.

* SerialEscalation: Even more than the other trees. The first few layers are mostly stuff on a molecular level. The midgame focuses on cells, tissues, and organs, basically parts of a single organism. The lategame involves animals and species, though there are also layers based on chromosomes and nucleuses. The endgame originally had ecosystems and plants, though at the start of Phase 3 things have moved on to humans instead.

** The level cap for Taxonomy buyables is 400. The Chromosomes III upgrade increases that by 4*(Chromosomes-37), eventually capping at 850. Then the Chromosomes VIII upgrade increases that by 3*Chromosomes, going as high as 1100. Then the Chromosomes 14 milestone increases that further by Chromosomes - 234, up to 1210. Chromosome Milestone 29 then replaces that with 1500+Nucleuses, but Chromosome Milestone 32 reduces that to 1200+Nucleuses. Some other upgrades and Truly Chromosomeless also affect the cap, but the main affecting factor in the end is Human Milestone 44 which makes it 10*Plants (which is further boosted by Human Milestones 71 and 95) and is expected to go above 1e13 by the endgame.

* DifficultyLevels: Outside of the default difficulty, there's Easy (all bulk buying is done by default, 2x prestige currencies and 4x passive gain currencies gain up to Genes, and pre-Phosphorus resource gain ^1.001), Hard (most passive gains are divided by 4 and other small nerfs), and [[HarderThanHard Extreme]] (most currency gain as well as mRNA and tRNA base is ^.75). You can match the three difficult options however you please.

** "Science is organized knowledge" effect is square-rooted above 10 because it would otherwise decrease from "I think therefore I am"'s cost base too quickly.

** Phosphorus and Mu, which are disabled when you get Tissues LXXI.