Working With Tiefling Age Tables
Most people just assume tieflings are like humans with horns and call it a day. It does not work that way in practice. Tieflings mature at the same rate as humans, which means they reach adulthood around eighteen years old, but they live longer once they get past that point. The standard numbers from the 5th edition rules put their average lifespan somewhere between one hundred and one hundred and twenty years. That is not a hard cap. I have seen character sheets where a tiefling character was played as two hundred years old and the table worked fine if you accounted for the slower aging that happens after age eighty. The core confusion most groups run into comes from mixing up tieflings with other bloodline races. Tieflings are descended from fiendish ancestors, and that heritage shows up in their life table. They age normally through childhood and adolescence, hit their physical peak around twenty-five, and then the aging curve flattens out. A tiefling at age sixty often looks and moves like someone in their late forties, which causes problems at the table when players stop thinking about their character as an older person too early. I had a group where the tiefling player kept treating his forty-year-old character as a young adult in every scene. He was making decisions like someone who had never seen a campaign go sideways more than once. The DM tried to push back by having NPCs call him inexperienced, but the player argued that tieflings did not have some kind of delayed maturity rule. The fix was simple. I looked up the official aging stages, wrote out a quick reference card with three columns—physical capability, social perception, and typical life milestones—and handed it to the player. After two sessions, he started playing the character differently. He stopped interrupting conversations and started referencing events from fifty years earlier that should have shaped his worldview.
Aging stages are the part most people skip. Tieflings enter old age at eighty years, reach venerable status at one hundred, and typically die somewhere between one hundred and one hundred and twenty unless a specific ability extends that. Some editions and homebrew sources vary the numbers slightly, so you need to confirm which rule set your table is using before you commit to a character age. The difference between a ninety-year-old and a hundred-and-twenty-year-old tiefling is not just cosmetic. At ninety, a tiefling is already dealing with stat penalties in some versions, and at one hundred twenty they are usually dead regardless of how high their constitution is. There is a common misconception that tieflings live as long as elves or drow because of their demonic blood. That is incorrect. Fiendish ancestry does not grant extended longevity in the way fey or celestial lines might. Tieflings are roughly in the human longevity bracket, give or take a couple of decades. If a player tells you their tiefling should be three hundred years old because of their heritage, that is not supported by the standard rules. You can house rule it, but do not pretend the RAW supports that without citing a specific source. Here is an edge case I ran into that most guides do not mention. Tieflings born from a planar contract or a bloodline curse sometimes get special aging rules depending on the campaign setting. In Forgotten Realms, for example, some tiefling bloodlines trace back to specific archfey or devils, and certain named lineages have documented lifespans that differ from the generic table. One of my games had a tiefling whose parent was an actual archfey instead of a devil. We had to negotiate whether fey aging rules applied or whether standard tiefling tables took precedence. We ended up using the tiefling baseline but added five years to the venerable stage because the fey blood contributed marginally. It was a thirty-minute conversation that saved us from arguing for three sessions.
When you are building a tiefling character and trying to decide what age to pick, the most practical approach is to think about what role you want the character to fill in the party. A tiefling at twenty is competent but still figuring things out. A tiefling at seventy has likely buried two spouses, survived a war or three, and has strong opinions about pretty much everything. The mechanical difference is small. The roleplaying difference is massive. If your group uses variants like the one from Mordenkainen's Tome of Foes or various setting books, check whether those variants change the lifespan at all. Most of them do not. A few niche sources introduce subraces with different aging curves, but those are exceptions. The default tiefling from Player's Handbook stays in that human-like range with a modest extension. Mortality rates for tieflings in populated areas are mostly the same as humans. Disease, warfare, and accidents kill them at roughly the same frequency. The extra decade or two of life does not make them any harder to kill. I have seen new players inflate a tiefling's durability because they associate "demon blood" with invulnerability. It does not work that way. A goblin blade at sixteen years old kills a tiefling just as effectively as it kills a human.
Get the Full Details
The hardest part of managing tiefling age at a table is getting both the player and the DM aligned on what the character actually remembers. Tiefling history in most campaign settings goes back thousands of years. A two-hundred-year-old tiefling has lived through events that major factions in the world still argue about. If you are running a long campaign and your tiefling character hits age eighty, you should be thinking about what that means for their motivation and their relationships, not just checking a stat sheet for old-age penalties.
