The Bank holds your currency and lets you earn interest on it

In Sols RNG, the Bank is a building you can construct and visit to store your in-game currency. Once you deposit currency there, it sits in your account and generates interest over time — meaning you earn extra currency just by keeping money in the Bank rather than carrying it around. The longer your currency stays deposited, the more interest accumulates.

The Bank works like a real savings account: you put money in, it grows at a set rate, and you can withdraw it whenever you need it. The interest rate and the exact mechanics of how fast it grows depend on your Bank's level and any upgrades you have applied to it.

Key Takeaways

  • The Bank generates interest on deposited currency automatically, so money sitting there grows without you doing anything.
  • You must construct a Bank building in your world before you can use it, and higher Bank levels produce higher interest rates.
  • Interest accrues continuously while you are playing, so the longer currency stays deposited, the more you earn.
  • You can withdraw your currency and interest from the Bank at any time, but leaving it deposited is the only way to earn the interest bonus.

How to build and unlock the Bank

You construct the Bank like any other building in Sols RNG: you need the required materials and currency, and you place it in your world. The exact cost and materials vary depending on your current progression, but once built, the Bank becomes a permanent structure you can visit and interact with.

The Bank is available relatively early in the game, so most players encounter it during their first few hours of play. Once it exists in your world, you can deposit currency into it when ready — there is no separate unlock step or level requirement to start using it.

Interest rates and how they change with Bank level

Your Bank's interest rate is tied to its level. A level 1 Bank generates interest at one rate, and as you upgrade the Bank to higher levels, the interest rate increases. This means a level 5 Bank earns currency faster than a level 1 Bank, making upgrades worth the investment if you plan to use the Bank as a long-term storage method.

The exact percentage or amount of interest per time unit is set by the game and does not change based on how much currency you have deposited — only the Bank's level matters. Upgrading your Bank is one of the few ways to increase how much passive income you generate while playing.

Depositing and withdrawing currency

To deposit currency, you open the Bank interface and select how much you want to put in. The currency moves from your inventory into the Bank's account. To withdraw, you open the same interface and select how much to take out — the currency and any interest earned returns to your inventory when ready.

There is no penalty for withdrawing early, no waiting period, and no limit on how many times you can deposit or withdraw in a session. You can move currency in and out as often as you need to, though the interest only accrues on currency that is actually sitting in the Bank.

When to use the Bank versus carrying currency

Carrying currency in your inventory is useful when you are actively spending it — buying items, upgrading buildings, or trading with other players. But if you have currency you do not plan to use when ready, the Bank is almost always the better choice because it generates interest with zero effort on your part.

The longer your play sessions and the more time passes between when you deposit and when you need the money, the more interest you accumulate. Even a few hours of gameplay can generate noticeable interest at higher Bank levels, so depositing excess currency is a straightforward way to increase your total wealth over time.

Bank upgrades and what they do

Upgrading your Bank increases its level, which directly increases the interest rate it generates. Each upgrade requires materials and currency, and the cost typically rises with each level. The benefit — higher interest — compounds over time, so early upgrades often pay for themselves within a few play sessions.

Some players prioritize Bank upgrades early because the passive income benefit applies to all future gameplay. Others focus on other buildings first and upgrade the Bank later. Both approaches work; it depends on whether you want steady passive income or faster progress on other goals.

Frequently Asked Questions

Does interest keep accruing when I am not playing?

No. Interest only generates while you are actively in the game. Once you close Sols RNG, the timer stops, and no new interest is earned until you log back in and play again.

Can I lose currency if I deposit it in the Bank?

No. The Bank is a safe storage location. Your currency cannot be stolen, lost, or deleted once it is deposited. You can withdraw it at any time without penalty.

What happens if I upgrade the Bank while currency is deposited?

Your currency stays in the Bank and continues to earn interest at the new, higher rate. Upgrading does not reset your balance or interrupt the interest accrual — it only improves the rate going forward.

Is there a maximum amount of currency I can deposit?

Most players do not encounter a deposit limit during normal gameplay. If one exists, it is set very high and only becomes relevant after hundreds of hours of play.