Blueprints
If a blueprint has a valid spawn location on a floor (nearly all floors, this only excludes some boss arenas), there is a 20% chance that a blueprint will be selected to spawn.
After finding a blueprint, a cooldown of 4 floors is applied where blueprints cannot spawn, before returning to a 20% chance.
Blueprints cannot spawn inside of secrets or traps.
Spawning Odds
This table shows the chance of finding a blueprint within a certain number of floors.
| Floors | Odds for Blueprint |
|---|---|
| 1 | 20.00% |
| 2 | 36.00% |
| 3 | 48.80% |
| 4 | 59.04% |
| 5 | 67.23% |
| 6 | 73.79% |
| 7 | 79.03% |
| 8 | 83.22% |
| 9 | 86.58% |
| 10 | 89.26% |
| 11 | 91.41% |
| 12 | 93.13% |
| 13 | 94.50% |
| 14 | 95.60% |
| 15 | 96.48% |
| 16 | 97.19% |
| 17 | 97.75% |
| 18 | 98.20% |
| 19 | 98.56% |
| 20 | 98.85% |
| 21 | 99.08% |