The calculator above answers a simple planning question: if an unlock costs something once and gives value back every day, how many days until it pays for itself?
That is useful for the in-game Auto Restart Run because the real cost is not a store price. It is the current Vault unlock path on your account, bought with Keys and gated behind progression.
How This Works
Break-even is cost divided by daily gain.
| Input | Meaning |
|---|---|
| One-time cost | What you spend or the effort you want to model |
| Recurring daily gain | What the unlock gives back each day |
| Break-even | How many days until gain catches up to cost |
The calculator does not need to know the game. It only needs your current numbers.
What To Enter
Use figures from your own account:
- One-time cost: the current cost or effort you want to model.
- Recurring daily gain: the time, value, or resource benefit you expect per day.
- Same unit: cost and gain must be comparable.
For Auto Restart Run, many players think in time: how much idle time a faster restart saves per day, compared with the effort of reaching and spending the Vault unlock.
When TowerLoop Changes The Math
TowerLoop gives you another path: configurable restarts on your own Windows emulator or Android device, without waiting for the Vault unlock. If it reduces idle gaps for your setup, enter that reclaimed time as the daily gain and compare it with the pricing page and setup effort.
For context, read Auto Restart and TowerLoop vs Vault Auto Restart Run.
Assumptions And Limits
Last reviewed 2026-06-01.
- The result is an estimate, not a game forecast.
- Daily gain changes as your account changes.
- No in-game cost is hard-coded because the right number is the one on your current screen.
- TowerLoop does not create currency or alter account data; it sends configured local input to your own emulator or device.