Wednesday, March 18, 2026

More Ways to Die: Getting Old

 You wanna see the most messed up class feature in all of 5e?

 
"Timeless Body (Monk feature)
At 15th level, your ki sustains you so that you suffer none of the frailty of old age, and you can't be aged magically. You can still die of old age, however. In addition, you no longer need food or water."
 
You know what rules there are in 5e for "frailty of old age" and "dying of old age"? That's right, none.
 
Ever since I ran a Traveller campaign I feel like a system is just incomplete without rules for aging and dying. It's especially relevant to my group because not only do we have a monk in the party, we also have an awakened cat. Cats don't live very long, you know.
 
So, here are my rules for getting old in 5e. They assume the use of my other house rules for dying, though you could just attach them to vanilla 5e.
 
The species table uses "official" lifespans as far as I could find them. The exception is eladrin, elves, sea elves, and half-elves, who have Tolkien-style immortality. If you prefer the official lifespans for these species, use the values of shadar-kai for eladrin, elves, and sea elves, and use the values of minotaurs for half-elves.
 
Old Age
To determine your birthday, roll 1d12 for month and 1d30 for day.

When you reach a certain age, you must start making aging checks regularly at a certain interval of years. To pass an aging check, you must roll 4+ on 1d6. If you fail, your exhaustion limit (the amount of exhaustion at which you die) is reduced by one. If the limit reaches zero, you die. At a certain age, the difficulty of the aging check increases to 5+, and later to 6+.

If you succeed on an aging check, roll 1d4 on the Aging Effects table below.

1. Your life experience grants you XP equal to your age times your level times 5.
2. Randomly determine three different ability scores. Increase one of your choice by 1, and decrease another one of your choice by 1. The one you decrease has its maximum value reduced by 1.
3. You gain expertise with one skill or tool you have proficiency with.
4. You have entered the golden years. Until you fail an aging check, you gain inspiration on each of your birthdays. This effect can stack, granting you several instances of inspiration.

Your starting age, the age at which you must start making aging checks, the ages at which the difficulty of the check increases, and the interval in years between the checks, are all determined by your species.

Species Starting age Interval Aging 4+ Aging 5+ Aging 6+
Aarakocra 2+1d3 2 6 16 26
Aasimar 15+3d8 8 64 104 144
Bugbear 13+3d6 4 32 52 72
Cat 1d4 1 5 10 15
Centaur 15+3d6 4 36 56 76
Changeling 13+2d6 4 36 56 76
Dragonborn 13+2d6 4 36 56 76
Duergar 15+3d8 24 120 240 360
Dwarf 15+3d8 24 120 240 360
Eladrin* 15+3d8 40 40 - -
Elf* 15+3d8 40 40 - -
Fairy 15+3d6 4 60 80 100
Firbolg 15+3d8 28 140 280 420
Genasi 15+3d6 4 72 92 112
Githyanki** 15+3d6 4 36 56 76
Githzerai 15+3d8 8 56 96 136
Gnome 15+3d8 28 140 280 420
Goblin 7+1d6 4 14 34 54
Goliath 15+3d6 4 36 56 76
Half-elf*** 15+3d8 4 40 60 80
Halfling 15+3d8 8 40 80 120
Half-orc 12+2d6 4 28 48 68
Harengon 15+3d6 4 36 56 76
Hobgoblin 15+3d6 4 36 56 76
Human 15+3d6 4 36 56 76
Kenku 11+1d6 4 20 40 60
Kobold 5+1d6 8 24 64 104
Lizardfolk 13+1d6 4 20 40 60
Loxodon 15+3d8 28 140 280 420
Minotaur 15+3d8 8 100 140 180
Orc 10+2d6 2 26 36 46
Satyr 15+3d6 4 36 56 76
Sea elf* 15+3d8 40 40 - -
Shadar-kai 15+3d8 56 180 460 740
Shifter 8+2d6 4 24 44 64
Simic hybrid**** ? ? ? ? ?
Tabaxi 15+3d6 4 36 56 76
Tiefling 15+3d6 4 40 60 80
Tortle 13+2d6 2 32 42 52
Triton 15+3d8 8 100 140 180
Vedalken 36+4d6 28 140 280 420
Yuan-ti 15+3d6 4 36 56 76

 *Eladrin, elves, and sea elves are immortal. When they fail an aging check, their exhaustion limit is not reduced. Instead, they incur a cumulative -10% penalty to all XP gained. This can eventually prevent them from gaining XP entirely. Successful aging checks do not grant a roll on the Aging Effects table.

**For a githyanki, time spent in the Astral Plane does not count towards their aging. They still use their full age and actual birthdays for effects from the Aging Effects table. A starting githyanki character is assumed to have spent half their life so far in the Astral Plane.

***When a half-elf reaches age 40, they must choose whether to accept or refuse immortality. If they accept, they age as an elf. If they refuse, they age normally using the given values.

****Simic hybrids use the values of their origin species. The ages at which they must start making aging checks, and at which the aging check increases in difficulty, are reduced by a number of years equal to the origin species' interval. This does not apply if their origin species is eladrin, elf, or sea elf.