Venus vs. Ragnarok Strategy

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There are some differences between the **main** Venus and Ragnarok strategy.

Note: Everyone has their own way of terraforming.

## Venus

Venus's atmospheric pressure is roughly 9,000,000 pascals (9,000 kilopascals or 90 atmospheres of Earth), which is exactly 93 bars (91.3 atm), which is enough to occasionally crush your buildings in random events. You'll have to use a combination of biofixture labs and hydrogen processors to get rid of the thick atmosphere. Don't spend too much time hanging around in the game, because if you're not there, random events can't pop up and destroy your facilities.

#### Strategy 1 (Trade Route)

Set up two or more cities, wait for the Trade Route Established event to pop up, set up a good number of Hydrogen Processors, and just let the game run for a couple of days. Don't visit Venus other than for research purposes. Play on a different world or leave the game alone while you wait for Venus' atmosphere to drop below 2,000,000 Pa.

#### Strategy 2 (Trade Route + The League)

similar to the first one. Build two or more cities, build an emergency habitation, wait for the Wonder of the World event to pop up on both habitations in the cities, and wait for your revenue stream to hit more than 30,000 credits/min. Leave Venus for two days or so. After you leave it for two days, you have collected more than 50,000,000 credits. Build four more cities. That brings the total number of cities to 6, and we wait for sports leagues to drastically increase the revenue stream. Leave Venus again for a day, and you might have collected some 10,000,000 coins or more. Build 12 hydrogen processors, 3 aerostats, and 2 ice launchers (since the Bosch reaction produces heat and water as side effects). Since the facility maintenance of all facilities is 23,000 c, make sure your revenue stream is at 50,000 c/min or more. You will decrease the pressure by 1,220 pascals per minute, but it will take some three and a half days (more or less) to fall down to 2,000,000 Pa.

#### Strategy 3 (Outposts)

Because outposts and mines cannot be crushed, you can set up three or so outposts, place some good mines, and when you get some mining revenue, you can also research anything you need at your leisure. This way, after a few days, you would have collected several hundred million credits or a billion space credits (in some cases), and with the necessary research done and armed with them, you can then brave the pressure. With the mining revenue, you can quickly find two more cities. Since they automatically come with a Hab Unit I with 100 population (unless you are playing as Daughters of Gaia), you always have 3 building slots in every city at the beginning. If you build hydrogen processors in all 12 slots, you can reduce pressure by 1,200 pascals per minute, but since the initial pressure is so high, it will still take 4.1 (more or less) days for the pressure to be reduced to a safe level. Again, do not play the world during this time.

**Note**: Mines can deplete over time, so research very valuable resources (like palladium) and build them as much as you can. That is easy if you are playing with the Horizon Corporation, or you can wait for the paydirt event to pop up. This way, your mines will last longer than ever if you play the world often.

#### Strategy 4.1 (Biofixture Labs)

If you don't want to bother with hydrogen processors (because they generate too much heat and water), you can just research biofixture labs, find two or more cities, and wait for the trade route to be established. When you have enough credits, set up Biofixture Labs in all building slots and upgrade them as much as you can (upgrade them until they become so expensive to maintain that you barely get credits). By doing this, you can reduce the pressure by about 400 pascals per minute, but it will take 12 days (more or less) for the pressure to be reduced to a safe level. Avoid spending time on this world during this phase, or wait for them to be upgraded to Level 10.

#### Strategy 4.2 (Biofixture Labs using Biospheres mode

While Biofixture Labs can also increase oxygen in the air or increase Biomass (on the plus side), research carbon fixers and/or oxygen filters and place many of them. If a facility like this is upgraded to Level 10 or X, this will decrease or stabilize oxygen much more than before, but there are some drawbacks.

### Strategy 5 (the *Kurzgesagt* way)

This strategy is based on this *Kurzgesagt* video: "How To Terraform Venus (Quickly)".

First, mirrors are placed in orbit around Venus to shield it from sunlight. Then, after 60 years, Venus should cool down to around 304 kelvin before the carbon dioxide becomes liquid, raining down on the surface of Venus and creating CO2 oceans on its surface. At 217 kelvin and a pressure of 7 bars, the rain becomes snow as the carbon dioxide freezes. As a result, the atmospheric pressure drops along with the temperature until all of the carbon dioxide is removed from the atmosphere. After around 200 years, the pressure should stop decreasing after the carbon dioxide has been removed from the atmosphere, resulting in an atmosphere with a pressure of around 3.255 bars and made mostly of nitrogen with a surface temperature of 184 kelvin. Most of the frozen carbon dioxide is then removed from the surface, and excess nitrogen from the atmosphere is also removed to further reduce atmospheric pressure. The carbon dioxide and nitrogen are collected into a small moon around Venus. This moon can be used for specific purposes, such as terraforming other planets. Water will be added to the surface while removing the excess carbon dioxide. Oxygen will then be added to the atmosphere by cyanobacteria. The planet is then warmed up by mirrors around it, and life is finally added to make the planet habitable for humans.

To do this in TerraGenesis, follow the second strategy above before decreasing temperature by using aerostat platforms or solar shades until the temperature reaches 598 K, then decreasing pressure with hydrogen processors until the pressure drops to 325,500 Pa. After decreasing the pressure to that threshold, stop the hydrogen processors and build sequestration plants to slowly decrease the pressure until it reaches the habitable level. While decreasing pressure, set the temperature to 187 K by using the Soletta satellite and add around 336,000 cm of water ice and around 210,000 ppm of oxygen into the atmosphere. Then, temperatures should rise after adding water and oxygen by using the Soletta satellite or heating facilities. The water should melt with the temperature increase. After this is done, Venus should be habitable for plants. Add biomass to complete the terraforming procedure.

### Notes

As always, make sure you have multiple habitation facilities per city, because if one of them gets destroyed, you don't want that to mean your entire city dies out and you lose the culture revenue you built up with random events.

Be careful when placing cities, and double check the elevation map. Venus has fewer suitable places to put cities than other planets. ***See the elevation map below.***  There are not a lot of high-elevation spots. On top of that, because of Venus' high temperature, you might accidentally end up putting a lot of water vapor in the air without noticing it at first (especially since Hydrogen Processors and Hab Domes generate water as a byproduct), and then when you finally lower Venus' temperature (atmosphere thinning popup in stats < temperature), all of that water turns into liquid and floods the surface of Venus. That's a moment at which you don't want to take any risks with lower-elevation cities.

Hydrogen processors generate more heat than they lower. So, you could build some biofixture labs (although they generate oxygen) to help lower the pressure a little bit and also see if the "Atmosphere Thinning" popup is visible. This will cool down your planet a little bit. Hydrogen Processors also generate water, so possibly put an electrolysis plant or ice launcher or two.

Remember, altering the pressure will also change the temperature of the planet. Learn more here.

## Ragnarok

When you start Ragnarok, its environment is not stabilized. Fissure vents cause an increase of 100 Pa/min in pressure, which makes the temperature increase by 0.005 K/min. Separately, the fissure vents cause a -80 ppm/min loss of oxygen and a -50 cm/min loss of water. Additionally, a toxic atmosphere causes a 150 mt/min loss of biomass. Ragnarok has two natural satellites, but Venus doesn't.

### Strategy 1

Build two hydrogen processors: one is responsible for offsetting the pressure increase effect, and the other is responsible for reducing the pressure. (Use similar strategies for oxygen and water.)

Build a lot of spaceports on Ragnarok's two moons to increase revenue.

Remember that the Facility Crushed random event only happens when your pressure is over that number.

Set up two or more cities, each with at least two habitation facilities, because if one gets crushed, you don't want that to end all your culture revenue for that city.