¶ Upgrading
The upgrading system in 4Classic allows players to enhance their equipment.
¶ UPGRADE RULES
Upgrading equipment increases its power but becomes increasingly risky at higher levels.
- Upgrades from +0 to +10 are guaranteed to succeed.
- Starting from +11, upgrades use a chance-based system.
- Success rates depend on the current upgrade level and the selected (if any).
- For maximum efficiency, it is recommended to upgrade items using , as a successful upgrade can increase the item’s level by +1, +2, or even +3 at once.
- If an upgrade attempt fails without using a , the item is destroyed.
- When a Survival Tincture is used, the item is preserved, but its upgrade level may decrease instead.
- The maximum upgrade level in 4Classic is +24.
¶ TRY IT FOR FREE
Upgrade Simulator
+11
Equipment
Formula
Chance of Success: -%
Upgrade
| Level | Base | 100% | 150% | 200% | 300% |
|---|---|---|---|---|---|
| +11 | 60% | 120% | 150% | 180% | 240% |
| +12 | 20% | 40% | 50% | 60% | 80% |
| +13 | 35% | 70% | 87.5% | 105% | 140% |
| +14 | 13% | 26% | 32.5% | 39% | 52% |
| +15 | 12% | 24% | 30% | 36% | 48% |
| +16 | 5% | 10% | 12.5% | 15% | 20% |
| +17 | 7% | 14% | 17.5% | 21% | 28% |
| +18 | 3.5% | 7% | 8.75% | 10.5% | 14% |
| +19 | 1% | 2% | 2.5% | 3% | 4% |
| +20 | 0.5% | 1% | 1.25% | 1.5% | 2% |
| +21 | 0.8% | 1.6% | 2% | 2.4% | 3.2% |
| +22 | 0.5% | 1% | 1.25% | 1.5% | 2% |
| +23 | 2% | 4% | 5% | 6% | 8% |
| +24 | 0% | 0% | 0% | 0% | 0% |
Serendipity (100%)
Serendipity (150%)
Serendipity (200%)
Serendipity (300%)
¶ NOTES
- The simulator is intended for educational and planning purposes.
- Results are randomized and may differ from actual in-game outcomes.
- Always consider the risks before upgrading high-level equipment.