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Bonus miner or strong miner? How to compare in RollerCoin
Two people can buy the same miner and gain very different amounts. That happens because a miner adds in two ways: through its own power and through the bonus it applies to the whole room. This guide shows the formula and compares the Roller Vice season miners in three rooms.
The formula
For a new miner, one you do not have in your room yet:
Added power = miner power × (1 + room bonus) + miner bonus × (miner total + miner power)
- Miner total: the sum of your miners, with no bonus at all.
- Room bonus: the sum of bonuses from the different miners you already have.
- Miner bonus: the new miner's percentage.
The math comes from the model explained in how power and bonus work, checked against the game's league bar. It leaves out rack bonus, which depends on where the miner sits.
The three example rooms
| Room | Miner total | Room bonus |
|---|---|---|
| Beginner | 100 Ph/s | 30% |
| Intermediate | 2 Eh/s | 150% |
| Advanced | 18 Eh/s | 450% |
What each miner adds
| Miner | Power | Bonus | Beginner | Intermediate | Advanced |
|---|---|---|---|---|---|
| License to Crash | 16 Ph/s | 1% | 22 Ph/s | 60 Ph/s | 268 Ph/s |
| Lucky Bastard | 50 Ph/s | 2% | 68 Ph/s | 166 Ph/s | 636 Ph/s |
| Petty Theft Auto | 150 Ph/s | 5% | 208 Ph/s | 482 Ph/s | 1.73 Eh/s |
| Noise Complaint | 350 Ph/s | 7% | 486 Ph/s | 1.04 Eh/s | 3.21 Eh/s |
| Remote Disrespect | 500 Ph/s | 2% | 662 Ph/s | 1.30 Eh/s | 3.12 Eh/s |
| Skill Issue | 1.25 Eh/s | 5% | 1.69 Eh/s | 3.29 Eh/s | 7.84 Eh/s |
| Pink Slip | 5 Eh/s | 10% | 7.01 Eh/s | 13.20 Eh/s | 29.80 Eh/s |
What the table shows
In the beginner room, power rules. Remote Disrespect (500 Ph/s, 2%) adds 662 Ph/s, well above Noise Complaint (350 Ph/s, 7%), which adds 486 Ph/s. With a low miner total, each 1% bonus is worth only 1 Ph/s.
In the advanced room, the order flips. Noise Complaint adds 3.21 Eh/s and passes Remote Disrespect at 3.12 Eh/s, even with 150 Ph/s less power. In this room, each 1% is worth 180 Ph/s.
The smallest miner improves more than it seems. License to Crash has only 16 Ph/s, but adds 268 Ph/s in the advanced room: over 16 times its own power. About two thirds of that comes from the bonus.
Why physical size matters too
Room space is limited. If two miners add a similar amount, prefer the one with fewer cells, because it leaves space for another miner. To compare miners of different sizes, divide the added power by the number of cells.
Three checks before buying
- Copies: if you already have that miner in the room, the second one does not add its bonus. See why.
- League: more power can push you into a harder league. See how to avoid it.
- Merge: buying several copies may be worth more if you merge them. See the levels.
Do the math with your room
The three examples above only show the logic. For your case, open the RollTheCal calculator, load your profile and test the miner in the simulator. It already counts bonus, copies, racks and league. If you are weighing a pass, also read the Roller Vice season analysis.