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Mathematical Formulas

In 0.2.0, XP and progression use a monster-level-based system with level-difference multipliers and zones. This replaces the previous health-based XP formula.

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How the New System Works

Your XP gains depend on two main factors:
  1. Monster level — Base XP scales with the monster’s level (higher level = more base XP).
  2. Level difference — How close the monster’s level is to yours. Fighting monsters near your level gives the best XP; farming much easier or much harder content is heavily penalized.

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XP Gain from Mobs

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Base XP (Monster Level)

Base XP is determined by the monster’s level: 
Base XP ≈ MonsterLevel × √MonsterLevel   (conceptually; implementation may use level² scaling)
Monster LevelApprox. Base XP
1~1
50~353
81~729
100~1,000
Higher-level monsters give more base XP.

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Level Difference Multiplier

The difference between your level and the monster’s level applies a multiplier:
Your Level vs Monster LevelMultiplierResult
Same level (±0)1.5×Best XP!
1–5 levels higher1.1× – 1.5×Great XP
6–25 levels higher1.0×Normal XP
26–30 levels higher0.5×Reduced (50% penalty)
31–40 levels higher0.4×Low (60% penalty)
41–50 levels higher0.3×Very low (70% penalty)
51+ levels higher0.2×Minimal (80% penalty)
1–5 levels lower1.4× – 1.0×Good XP
6–25 levels lower0.96× – 0.2×Decreasing XP
26+ levels lower0.1×Very low (90% penalty, trivial content)
You can disable the underleveled XP penalty (rows where the monster is higher than you) via EnableGapLevelXpReducer: false in config — you will get full XP (1.0×) from higher-level monsters. See Configuration or Difficulty Scaling. Best strategy: Fight monsters within ±25 levels of your level. Same-level or slightly higher (±5) gives the highest bonuses.

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Final XP Formula

Final XP = Base XP(monster level) × Level Difference Multiplier × RateExp × ZoneRateExp
VariableDescription
Base XPFrom monster level (see table above)
Level Difference MultiplierFrom your level vs monster level (see table)
RateExpGlobal XP rate from RPGLevelingConfig (default 1.0; e.g. 2.0 = double XP)
ZoneRateExpPer-zone XP multiplier from ZoneLevelConfig (default 1.0; e.g. 2.0 = double XP in that zone, 0.5 = half). Applied to mob kills and block break XP in the zone.
Example (Level 81 vs Level 81 monster, RateExp 3.0, ZoneRateExp 1.0):
Base 729 × 1.5 × 3.0 × 1.0 = ~3,281 XP per kill.

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Zones and Monster Level Ranges

The world is divided into zones with different monster level ranges:
ZoneNameMonster LevelsBest For
1Emerald Grove1 – 25Early game (Level 1–30)
2Howling Sands25 – 50Mid game (Level 20–55)
3Borea50 – 75Late game (Level 45–80)
4Devastated Lands75 – 100End game (Level 70–100)
5Skylands85 – 100Max level
6Poisonlands90 – 100Ultimate challenge

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Monster Level Variation (±5)

Monsters in a zone have ±5 level variation around their base. Same zone, same “type” of monster can be different levels (e.g. 30, 33, 37, 40). This adds variety and keeps combat less predictable.

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Zone Colors on the HUD

The HUD shows the current zone and its color based on how it fits your level:
ColorMeaningXPAction
WhiteToo easy (−26+ levels)10% (90% penalty)Move to a harder zone
GreenGood match (±25 levels)100–150% (full + bonuses)Stay here
Orange / Red / PurpleToo hard (+26+ levels)20–50% (50–80% penalty)Come back when higher level
Pro tip: If the zone name is green, you’re in the right place for the best XP.

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XP Required for Level

Total XP required to reach a level: 
XP_required = LevelBaseXP × level^2.5 + LevelOffset   (level ≥ 2)
XP_required(1) = 0
The exponent 2.5 (not squared) gives a steeper curve: easier early levels, much harder at high levels.
VariableDescription
levelTarget level
LevelBaseXPBase for level formula (default 150.0 in config; examples below use 50.0)
LevelOffsetAdded to total XP per level. Only affects XP needed for 1→2; for 2→3 and beyond it cancels out when taking the difference.
Examples (LevelBaseXP = 50.0, LevelOffset = 0.0):
LevelXP Required
10 (starting)
2283
1015,811
50883,884
1005,000,000

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XP Needed for Next Level

XP_needed = XP_required(level + 1) - XP_required(level)

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Progression and Monsters per Level

Approximate monsters to kill per level when fighting same-level monsters (RateExp 3.0, LevelBaseXP 150, default formulas). “XP per level-up” is the range for one level step in that band (e.g. 1→2 needs ~850 XP, 9→10 needs ~10,500 XP). Total XP to go 1→10 is much higher (~47,400).
Level RangeXP per level-up (min – max)XP per KillMonsters per level-up
1 → 10849 – 10,9844.5 – 122189 – 90
20 → 3034,809 – 60,089403 – 70386 – 85
50 → 60134,566 – 172,4961,591 – 2,03985
80 → 82270,849 – 277,1113,220 – 3,28184
90 → 100326,656 – 372,1923,845 – 4,43385 – 84
Total (1 → 100, same-level farming): ~9,000 – 12,000 monsters (order of magnitude), depending on exact rates and level choices.

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Stat Points

Same as 0.1.9:
  • Stat points per level: 5 (configurable)
  • Max level: 100
  • Total at max: (100 − 1) × 5 = 495 stat points
See Configuration for StatPointsPerLevel, StatValuePerPoint, and related options.

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Summary

Topic0.2.0 behavior
XP sourceMonster level (not max health)
MultiplierLevel difference (you vs monster)
Zones6 zones with level ranges; HUD shows zone + color
Variation±5 monster level within a zone
Best XPSame-level or ±5 levels; green zones
PenaltiesToo easy (white) or too hard (orange/red/purple)
For difficulty scaling (monster damage, HP, level-gap combat), see Difficulty Scaling.