Hemopump

The hemopump is a deathrest building added by the Biotech DLC that allows Hemogenic deathresters to store more hemogen.

Acquisition

Hemopumps can be constructed once the Deathrest research project has been completed. Each requires 100 Steel, 4 Components, 5 Hemogen packs, 5,000 ticks (1.39 mins) of work, and a Construction skill of 4.

Summary

Active hemopumps require a pawn capable of deathrest and must be connected to a deathrest casket. Each hemopump consumes 100W of power and 0.5 hemogen pack per day as long a pawn is deathresting in an attached casket. It can hold up to 5 packs at a time, for a maximum run time of 10 days, and is constructed fully fueled. The pump will be automatically refueled by a haulers so long as auto-refueling is enabled.

If the deathrest is not interupted, the hemopump increases the amount of Hemogen the pawn can store by +25 until the next deathrest. A hemogenic pawn can store 100 hemogen before modifiers.

Like other deathrest buildings, a hemopump permanently binds to a pawn once used, with no penalty for deconstruction. Deathresting pawns have their own separate limit to the buildings they can connect to, which can be increased with a deathrest capacity serum. There is no explicit limit to the number of hemopumps a pawn can connect to, but each pawn has an upper limit of 20 connected buildings at a time.

Analysis

Hemopumps increase the amount of Hemogen a Hemogenic pawn can store, allowing more uses of their abilities before needing to bloodfeed or consume a hemogen pack. Most of these abilities are related to combat.

How useful this is will depend on playstyle, but the boost is modest either way. Usually, increasing move speed or decreasing deathrest time are stronger buffs. Getting a few more uses of abilities like Coagulate may be useful, but pawns already have a high capacity for Hemogen. The starting capacity is 100, and the most expensive ability is only 20 Hemogen, so a pawn must be using 80 Hemogen between refills. Even if you are using 80 Hemogen (e.g. 4 Coagulates in a row), each hemopump only adds a few uses of Longjump, or 1 use of the other abilities.

Hemopumps are one of two deathrest buildings without a connection cap. If a pawn has a high building capacity, and the other buildings have reached their maximum, you might as well use one. It has a small niche for long caravans, extending the time where conceited noble pawns with Hemogen Drain can last without bloodfeeding or facing penalties from eating hemogen packs.

As with all other deathrest machines, these cost a non-negligible amount of steel and components. Consider holding off on building them until you are more well established and are able to produce steel and components reliably with deep drills and fabrication benches.