Blood Magic altar calculator

Pick the altar's tier and how many of each rune it has. The calculator works out capacity, speed and bonuses exactly as the altar does, and how long each altar craft takes with that setup.

What each rune does

Runes only count from tier 2 up, and only in the rune slots of the tier you have built: 4 at tier 2, 28 at tier 3, 56 at tier 4, 108 at tier 5 and 184 at tier 6. A tier II rune counts as two. Speed runes add 20% crafting and orb-filling speed each. Runes of Sacrifice and Self Sacrifice add 10% to the LP from killing mobs and from your own blood. Runes of Capacity add 20% to the 10,000 LP base each, and Augmented Capacity multiplies it by 1.075 per rune, so it pays off only once you have many. Displacement runes speed up the input and output buffers by 20% each (compounding), Acceleration runes shorten their 20-tick cycle by one tick each, Runes of the Orb add 2% to a bound orb's capacity, and Charging runes store LP ahead of time for the next craft.

An altar craft drains LP every tick at the recipe's rate plus your speed bonus. If the altar runs dry mid-craft, progress drains away, so keep it topped up for crafts that need more LP than it holds.