Hypothermia

*"Travel to a dimension where heat is hard to come by."*

criteria
 Reward
 Goal

## Strategy

Maximizing Embers increases the Radon reward, but also makes the enemies much stronger; your first few runs of **Hypothermia** should aim for around 140-180 Embers and end at z175 to avoid giving enemies too much stats and stalling out. Do a handful of LWC maps at z17 to get some bonfires, then wait for them to burn out before seeing if you need to farm more. If you're having trouble with overshooting your Ember target due to getting extra Bonfires later on, run a couple maps every 5 zones once all your Bonfires have burned out to drive up the price whilst minimizing Ember stacks gained.

Later runs may be able to get more Embers and/or end on a higher zone, which is worthwhile especially with the Glass bonus. Finding the correct balance between Embers and end zone (and clearspeed if you're playing actively) based on your current combat power levels is nontrivial.

Getting a bunch of bonfires all at once generates much more Embers than getting bonfires evenly spread out over the run. If you're aiming for higher Ember counts, you'll need to do a small number of farming sessions for several bonfires each.

### Automation

Setting up Map At Zone to automate **Hypothermia** is quite tricky, because it's difficult to predict exactly how many bonfires you'll pick up each zone. For a run which aims to maximize Ember stacks, you can aim for three bursts of bonfire farming: one early in the run, one late in the run, and one in the middle.

One setup involves farming on zones 17, 90 and 163. Even if you have a bonfire going on zone 17, the penalty to wood farming will be fairly small at this point, so farming here is still effective since you can get a looting bonus from Greed. The other two zones should be set to points where you won't have bonfires. The exact map preset choices, number of repetitions, heirloom choice and so on are not a solved problem. Expect to tweak your configuration many times.

### Late game maximizing

*This section was written when Hypothermia was the endgame Radon challenge, before patch 5.8.0. Using Hypothermia to set a large Bone Portal value may no longer be a worthwhile goal.*
Once you're comfortably letting **Hypothermia** run unattended with voids on zone 200, you may wish to set a large bone portal Radon value by doing a manual run with the aim of maximizing your embers, and therefore your Radon.

Here's one of the simplest ways to go about this:

* You want a high ending zone on the previous run, for the Scruffy level 3 bonus.
* Remove all Radon from the Packrat perk, and turn off AutoStorage. You'll still begin with 50 sheds due to the Scientist bonus, and this will inevitably lead to some early bonfires. That's fine.
* Disable all Map At Zone lines except one that stops in the map chamber on zone 120.
* Once the run starts, buy Radonculous with bones, and begin fighting.
* Check in periodically to buy Barns and Forges, but **not** Sheds.
* Once you reach zone 120, turn AutoStorage back on and start farming wood. You should easily get enough for a dozen or more simultaneous bonfires. (You can't restore your Packrat perk until the run ends.)
* Don't forget, you can use Atlantrimp here for more wood.
* When you have enough wood, go back to food or metal farming, whichever your normal mode is, restore your M@Z settings, and let the run proceed.
* At the end of the run, do whatever it takes to finish the void maps and Frozen Castle on zone 200. The large number of embers will make combat more challenging than in normal runs, so expect it to take time. Don't forget about Smithies and Melting Point.
* After zone 200, restore your Packrat perk, and portal to set your new bone portal Radon value.

The zone where you stop and farm wood can be pushed downward, and the farming time increased, to squeeze out some more embers.

## Trivia

Added in version 5.6.0.

Completing **Hypothermia** with at least 400 Embers earns the Burn Baby Burn achievement.