Bank Heist
Raid on the Aerarium — the rarest jackpot enchant: 100,000 × level Denarius on a one-in-a-million proc.
Bank Heist - known in-game as Raid on the Aerarium - is the rarest jackpot enchant in Imperium. On a one-in-a-million-style proc it pays 100,000 × level Denarius as a single bonus deposit. It is the dream enchant for screenshot hunters: a single proc can pay more than an hour of normal mining.
Bank Heist is covered alongside the other money proc enchants on the Money Enchants page. This spotlight covers its mechanics, expected-value math, and strategy.
At a Glance
| Field | Value |
|---|---|
| Display name | Raid on the Aerarium |
| Config id | bank_heist |
| Category | DENARIUS (jackpot / proc) |
| Rarity | LEGENDARY |
| Max level | 150 |
| Effect | On proc, pays 100,000 × level Denarius as a bonus. |
| Proc chance | 0.0001% per level |
| Base cost | 100,000 Auctoritas (level 1), POLYNOMIAL x1.2 scaling |
| Unlock | Prestige 8 + Rank 94 |
The Jackpot Proc
Bank Heist fires on a proc chance of 0.0001% per level (one in a million at level 1). When it fires, you receive 100,000 × level Denarius as a single bonus - on top of whatever the block normally pays. The payout scales linearly with level, and so does the proc chance, so the expected value per block scales with the square of level (see the math below).
| Level | Proc chance | Payout per proc |
|---|---|---|
| 1 | 0.0001% (1 in 1,000,000) | 100,000 Denarius |
| 25 | 0.0025% (1 in 40,000) | 2,500,000 Denarius |
| 50 | 0.005% (1 in 20,000) | 5,000,000 Denarius |
| 150 (live cap) | 0.015% (1 in ~6,667) | 15,000,000 Denarius |
Because both the proc chance and the payout rise with level, leveling Bank Heist is more valuable than it looks. Doubling the level roughly quadruples the expected Denarius per block mined.
Expected-Value Math
The expected Denarius contributed by Bank Heist per block mined is procChance × payout:
| Level | Expected Denarius / block |
|---|---|
| 1 | 0.1 (100k ÷ 1,000,000) |
| 25 | 62.5 (2.5M ÷ 40,000) |
| 50 | 250 (5M ÷ 20,000) |
| 150 | 2,250 (15M ÷ 6,667) |
An ordinary block in a mid-game mine is worth tens to hundreds of Denarius, so at the top of the ladder Bank Heist is genuinely income - but it arrives as rare 15-million-Denarius meteors, not a steady wage. The reliable income comes from Fortune, Denarius Boost, and Payday.
How to Obtain Bank Heist
Bank Heist requires Prestige 8 + Rank 94 to buy or apply.
- Enchant books - the intended path. Level-1 books drop from legendary/mythic crates and trade on the Auction House. Fuse two same-level books for +1.
- The
/enchantmenu - buy directly with Auctoritas. The 100,000 base cost is moderate, but the value is in the thrill, not the EV.
Strategy
- Buy it last. Bank Heist is fun, but its expected value is tiny compared to reliable money enchants. Max Fortune and Denarius Boost first, then pick up Bank Heist for the screenshots.
- Mine fast to roll the dice. Proc enchants reward blocks-per-second. The more blocks you break, the more chances to hit the jackpot - pair Bank Heist with Jackhammer and Efficiency so you break thousands of blocks per session.
- Don't chase the proc. A one-in-40,000 chance means a level-25 Bank Heist can go a whole session without firing. Treat any proc as a bonus, not a plan.
- Celebrate when it hits. The payout broadcasts and is a great moment - that is the whole point of the enchant.
Related
- Money Enchants - the full Denarius/jackpot reference.
- Singularity - the all-currency mythic proc.
- Jackhammer - the layer-clear to roll more procs.
- Luck Enchants - the other proc-based windfalls.