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

This is the 2D counterpart to the 3D XP Leveling Curve Designer: the identical req(n) formula and level-up loop, read off a flattened side-view staircase instead of a spiral tower. Every level-based progression system needs a function req(n) — the XP required to climb from level n to n+1 — and its shape 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 staircase's steps are spaced by req(n), log-compressed so tall values still fit on screen — a steep power/exponential curve visibly stretches the upper steps apart, which is exactly what a player feels as a "grind wall". The small inset graph plots req(n) itself across all 30 levels so you can compare curve shapes directly. 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.

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