Cube Synthesis Simulator
Synthesis consumes 9 items of the same grade and rolls the result grade by weight. Low grades always rank up, but Immortal and above carry a retention chance. Odds are taken straight from the game data.
Your synthesis results
Syntheses
0
+1 rank
0
+2 ranks
0
Retain
0
Try synthesizing in the cube below — your results are tallied here.
Try synthesizing
Synthesis
Material grade
Same grade [不朽] chance49.9%
Higher grade [至宝] chance49.9%
Two grades higher [超凡] chance0.249%
Synthesizing 9 items of the same grade yields a higher-grade item. Pick a grade and hit Synthesize. The result follows the odds shown below — and from Immortal up, it can also stay the same grade (retain).
Grade transition odds
| Material grade | Result |
|---|---|
| 普通 | 罕见95.2%+1 rank稀有4.76%+2 ranks |
| 罕见 | 稀有96.2%+1 rank传奇3.85%+2 ranks |
| 稀有 | 传奇97.6%+1 rank不朽2.44%+2 ranks |
| 传奇 | 不朽99.0%+1 rank至宝0.990%+2 ranks |
| 不朽 | 不朽49.9%Retain至宝49.9%+1 rank超凡0.249%+2 ranks |
| 至宝 | 至宝66.6%Retain超凡33.3%+1 rank天界0.166%+2 ranks |
| 超凡 | 超凡76.9%Retain天界23.1%+1 rank神圣0.077%+2 ranks |
| 天界 | 天界83.3%Retain神圣16.7%+1 rank宇宙0.017%+2 ranks |
| 神圣 | 神圣90.9%Retain宇宙9.09%+1 rank |
| 宇宙 | Top grade (cannot be synthesized further) |
Expected cost
→
Expected syntheses
47.1 ×
Starting-grade materials needed (expected) (不朽)
377.7 pcs
Syntheses per grade (expected)
不朽44.4×至宝2.7×
Each synthesis consumes 9 same-grade materials. Values account for retention and +2-rank jumps (no downgrades occur in the data).
Synthesis simulation
Runs many trials of reaching the target from the start grade you chose above, showing the average, spread and distribution of syntheses needed.