Last stand

Last stand can roll when brain integrity is at or below 15 percent and still above zero, consciousness is under 30 percent, and this run has not already rolled — unless Infinite last stands is on. The odds use a mood value from about 9 to 10 minutes earlier. One wiki source for the numbers.

Odds

What a success changes

On a success the wiki lists brain integrity rerolled to 75–90 percent, heart rate 120, blood pressure 135, blood viscosity 0, respiration 25 per minute, full oxygen and energy, temperature 37°C, opiates cleared, and mood forced to 10. Internal bleeding, sepsis, hemothorax, and radiation sickness are cut by the percentages on that page. Adrenaline, immunity, and energized are applied for a few minutes.

What still kills you

• Brain health hitting zero instantly: explosion, spike, headshot, or an elder thornback bite to the head.
• The roll succeeding while you are still in the hazard.
• A death that takes longer than about 10 minutes, so the mood sample has already fallen.

Custom last stand

Infinite last stands is a difficulty toggle, default off. Turning it on still has a hidden limit in the wiki footnote: the previous roll has to have succeeded. Custom last stand, the search phrase, is a mod that changes the last-stand screen. I found one Reddit comment about it and no Nexus page, so that part stays at one community source.