In 1975, a programmer named Will Crowther was going through a divorce. To stay close to his daughters, he wrote a simple text adventure called Colossal Cave Adventure. You typed commands. The game responded. If you died, you started over.
He kept working on it even after the girls went to bed. There's something about building a world with rules and progression that's comforting when everything else in your life has stopped making sense. I don't think he was thinking about game design. I think he was trying to create a place where the inputs led to predictable outputs because his actual life had stopped doing that.
Five decades later, that same instinct is what fills LitRPG readers' Kindles at 2am. Progress. Numbers ticking up. The feeling of earned power in a world with clear rules.
But most first-time LitRPG writers misread what's actually happening.
The readers aren't there for the numbers. They're there for what the numbers mean. A character hitting Level 47 is not interesting. A character hitting Level 47 after everyone told them they'd never make it past 10 is a completely different story. The progression system is a mirror. It shows the reader, in concrete terms, how far this person has come and what it took out of them.
Make the stat sheet personal
In Will Wight's Cradle series, Lindon doesn't just gain power. He gains it against a world that told him at birth he was broken. His foundation is damaged. His sect considers him a waste of resources. Every advancement he earns isn't mechanical growth. It's a rebuttal.
Before you assign your character their abilities, it's worth asking what they would naturally build toward. What they'd resist. What power would feel wrong in their hands. The skills should feel chosen, not dropped.
Build the world through the interface, not around it
One of the fastest ways to lose a LitRPG reader is to write a normal fantasy world and bolt a game system on top. The stat screens appear out of nowhere. The skill descriptions read like patch notes. Nothing about the system tells you anything about the world it exists in.
Jason Cheyne figured this out in He Who Fights With Monsters. His cultivation system isn't decoration. It's how that society organizes power, who gets access, and why the protagonist's particular path threatens the people above him. You can't separate the magic system from the politics because they're the same thing.
That's the question worth sitting with when you're building your world. Who benefits from the way this system works, and what happens to someone who breaks it.