XP Leveling Curve Designer

Leveling Curve

Exponent 1.00

Base XP for level 1→2 120

Avg XP per session 60

Sessions / sec (auto-play) 2.0

Player Progress

— pacing —

Level

Total sessions

0 / 120 XP0%

Sessions since level-up

Est. sessions to next lvl

—

How it works

Every level-based progression system needs a function req(n) — the XP required to climb from level n to n+1. The shape of that function is one of the most important, and most abused, levers in mobile-app gamification: it decides how often a player feels a reward.

Linear:      req(n) = base · n
Power:       req(n) = base · n^p        (p = exponent, 1<p≤3)
Exponential: req(n) = base · g^n        (g = growth rate, 1.00<g≤3.00)

Each simulated session adds a random amount of XP (mean = the "Avg XP per session" slider, ±35% noise, like real play sessions vary). The engine keeps a running XP total and level counter — exactly the loop a real backend runs after every match, workout, or lesson:

while xpIntoLevel ≥ req(level):
    xpIntoLevel -= req(level)
    level += 1

The tower's platforms are spaced by req(n), log-compressed so tall values still fit on screen — a steep power/exponential curve visibly stretches the upper rings apart, which is exactly what a player feels as a "grind wall". The pacing verdict compares average sessions-per-level against the 2–10 session band most retention-tuned mobile games target: much faster feels trivial, much slower drives churn.

LEVEL UP!

Current level Cleared levels Levels ahead

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