Bionic stomach

A bionic stomach is an organ replacement that has 125% efficiency, and increases metabolism by 12.5% (metabolism is the average of stomach and liver efficiency).

Acquisition

Bionic stomachs can be crafted at a Fabrication bench once the Bionic replacements research project has been completed. They require 10 Plasteel, 3 Advanced components, 26,000 ticks (7.22 mins) of work, and a Crafting skill of 8.

They can also be bought from exotic traders, Empire traders, and at Outlander faction bases. They are also sometimes offered as a quest reward.

Summary

A bionic stomach improves a pawn's metabolism by 12.5%. This, in turn, slightly improves the rest rate multiplier by 3.75%, meaning the colonist will require less sleep.

Unlike the Royalty DLC stomach replacements, EMPing a pawn with a bionic stomach will not force them to vomit.

Installing a stomach can be used to instantly treat gut worms as the new stomach replaces the diseased part. With it installed, further infections are also prevented.

Eating capacity, eating speed, and food poisoning chances are unaffected.

Installation

Installing a bionic stomach requires 2,500 ticks (41.67 secs) of work, 2x medicine of ??^{[What Quality]} quality or better, and a Medical skill of 5.

Removing a bionic stomach requires 2,500 ticks (41.67 secs) of work, 1x medicine of ??^{[What Quality]} quality or better, and a Medical skill of ?.

If the operation fails, the part has a chance^{[What Chance?]} to be destroyed.

Analysis

Of all the bionic parts in the game, it is perhaps the second least generally useful after the bionic spine, only improving rest rate multiplier and neutralizing the threat from Gut worms. However, it is still worth installing if there is one available.

A bionic stomach gives a 12.5% increase to metabolism, which in turn has a 30% influence on Sleep rate; thus, it is a 3.75% increase in sleep efficiency, or, for a standard 8 hour sleep cycle, a savings of just over 17 minutes/day, or about a 1.8% increase in waking hours/day.

The bionic stomach is a cheaper way to reduce time sleeping than upgrading to a royal bed, however both can be combined.

Comparisons

The Royalty DLC introduced a number of Stomach replacements with their own advantages and disadvantages. All three of these variants include the benefits offered by the bionic stomach in addition to their unique benefits however they are also susceptible to EMP, causing the pawn to vomit uncontrollably for a short length of time.

Detoxifier Stomach

In addition to the normal benefits of a bionic stomach, the detoxifier stomach eliminates the risk of food poisoning at the cost of vulnerability to EMP.

Reprocessor Stomach

In addition to the normal benefits of a bionic stomach, the reprocessor stomach reduces the amount of food a pawn requires by 25% at the cost of vulnerability to EMP.

Nuclear Stomach

In addition to the normal benefits of a bionic stomach, the nuclear stomach combines the benefits of both the detoxifier and reprocessor stomachs, reduces the amount of food a pawn requires by a whopping 75% and eliminating the risk of food poisoning at the cost of vulnerability to EMP and inflicting torso cancer on average once 120 in-game days.

Stomach	Cost	Digestion	Hunger Rate	Food poisoning	Side effects	Market Value
Stomach	-	1x	1x			-
Bionic stomach	10+ 3	1.125x	1x	×50%		785
Sterilizing stomach	15+ 4	1.125x	1x			1,030
Reprocessor stomach	15+ 4	1.125x	0.75x			1,030
Nuclear stomach	15+ 4	1.125x	0.25x		Carcinoma	1,030
Fleshmass stomach	-	1x	1x		+8% Pain	??^{[Detail needed]}