Experiment: Earth
The Earth experiment is one of 12 experiments in the laboratory, available at laboratory tier 3.
The goal of the Earth Experiment is to get a certain amount of density.
Mechanic
Drills dig up earth, higher tier drills collect more earth per tick. Drills can be upgraded and new ones can be purchased using laboratory resources. Upgrades and drill cost increases exponentially. Drills will increase volume based on the added mass (keeping density constant), somake sure to turn them off before you start compressing!
Compression reduces volume/diameter and raises density. Compression speed decreases at lower volume (stopping completely at the minimum amount), so gathering more mass will result in faster compression. Certain compression modes will affect the stability of your dirt pile; if stability reaches 0% you will lose all previously collected mass and will have to reset the experiment, so be ready to switch it off once the stability gets low.
The density will eventually reach a maximum amount, at 80 * (4/3)3*log3mass, which is approx. 80 * mass0.78557852143. This means to get all the modules, you must have a mass of at least 2.7e7 (2.7M) kg, and to complete all goals, you must have at least 8.92e12 (892B) kg mass.
Compression modes
- Slow & Safe: Drills get slower the higher compression rate gets (stopped at maximum rate), slow compression but won't reduce stability.
- Quick & Dangerous: Drills can continue normally regardless of compression rate, very fast compression but drains stability
- Stabilize: Increases stability and slows down the drills.
Prestige
Prestige resets all your drills, mass and diameter and will require you to have a certain amount of mass drilled. Every prestige multiplies the prestige goal by exactly 1.33, so the current goal mass is 1.33prestige-1 * 100kg.
You can choose between 2 bonuses:
- -20% Stability loss & +10% stability gain: Reduces the stability loss when using Quick & Dangerous compression mode and increases stability restoration rate while in Stabilize mode.
- +30% Compressor React & +10% Drillpower: Increases the reaction speed of the compression bar (the bar will adjust faster) and increases the amount of mass drilled.
All increases are multiplicative.
Rewards
| Density | Reward |
|---|---|
| 1,750kg/m3 |  Earth Taste
|
| 6,000kg/m3 |  Steel Foundation
|
| 30,000kg/m3 | Gravel
|
| 125,000kg/m3 | Titanium Hull
|
| 2.5Mkg/m3 |  Avalanche
|
| 55Mkg/m3 | Earthquake
|
| 1,000*1.5lvl kg/m3 | +(lvl+1)% Earth damage |
| 1,500*1.6lvl kg/m3 | +(lvl+1)% Earth resistance |
