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Roblox / Idle Mafia Game

Offline income: measure your rate and collection cap

What a historical 25% offline-income label shows, how to compare two real observations, and how to investigate a possible collection limit.

Sources reviewed October 2, 2026 · Independent editorial guide
Official Build Your Empire artwork showing a miniature city and property deed
Official promotional artworkSource: Stacks of Cash / Roblox ↗

Compare two offline observationsDiagnose lower earnings

Decision guide

The labeled video snapshot is historical. Calculated examples are conditional illustrations; check today’s values in your client.

What is confirmed

The official listing says properties keep earning while you sleep, but it does not publish a detailed offline formula or collection limit. A gameplay video published September 1, 2026 displays “Earns 25% income while offline” on one player's Properties screen. This is a dated interface observation, not a guarantee about the current client.

Distinguish displayed hourly income, actual offline earnings and collectible income. If these differ, using the displayed rate alone may overstate what you receive.

Does “25% offline income” mean a 25% cap?

The historical screen describes an offline income rate: 25% of the shown income while away. It does not display a maximum collectible amount, maximum offline duration, or a 25% collection cap. Calling the rate a “cap” adds a rule that this frame does not show.

In that frame, the player had two properties and $2,700/hr displayed total income. If the 25% label applied throughout an absence, the arithmetic would be $675/hr offline; two hours would yield $1,350 and eight hours $5,400 before any other rule. These are conditional calculations from a historical screen, not measured rewards. A bonus, collection limit or changed version could alter them.

See the five property rows from the same frame. To determine your present effective rate, use two controlled observations below.

Run a controlled check

  1. Record the property, displayed rate, active bonuses and collectible balance.
  2. Leave for a measured interval without buying anything or changing the setup.
  3. On return, record the change before claiming unrelated rewards.
  4. Divide the property-income increase by elapsed hours.
  5. Repeat with a longer interval to investigate a possible cap.

A lower rate in a longer sample could indicate a cap, an expired bonus or another change. It does not by itself prove a fixed offline penalty. Compare conditions before drawing a conclusion.

Estimate a session

Use an effective hourly rate you have observed. If a collectible-income cap is confirmed, enter it; otherwise leave it blank. This model assumes a constant rate and no ownership changes.

Turn the result into a decision

Illustration: an observed 2,000 cash per hour for eight hours gives 16,000 before any limit. A confirmed 10,000 cap would reduce collectible income to 10,000. These are demonstration values.

If a cap is reached long before you return, increasing hourly income may not improve that absence. Consider a different collection interval where practical. Use the session checklist to record what to check before leaving, and return to property comparisons with the effective rate.

Why did a longer absence earn less per hour?

Compare two offline observations

Enter only the new property income earned during each absence. Use the same property setup and effects. Clear any pre-existing collectible balance before measuring, or subtract it from the ending balance.

Observation A
Observation B

Two observations can reveal a discrepancy. They cannot by themselves establish a permanent cap or offline percentage.

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Interpret the discrepancy before changing your build

Diagnostic possibilities, not confirmed game rules.
ObservationPossible explanationNext check
Same earnings after 4h and 8hA limit, interrupted earning or collection behaviorRepeat under the same effects; inspect the cap message
Same hourly average at both durationsCompatible with a constant rate over these intervalsA later cap is still possible
Long sample has a lower hourly averageA limit or conditions changedCheck bonuses, ownership and starting balance
No new income in either sampleSetup, collection or measurement problemConfirm ownership and the correct income balance

Illustration: A earns 8,000 in four hours and B earns 12,000 in eight. Their averages are 2,000/hour and 1,500/hour. Continuing A’s average for eight hours would produce 16,000; B is 4,000 below that reference. Calling 12,000 “the cap” from these two readings alone would overstate the evidence.

Collect a third observation with the same starting balance and active effects. If multiple durations stop near the same amount, a ceiling becomes a stronger hypothesis. If an effect expired halfway through, investigate bonus scope and duration first. Do not change the property and collection interval in the same test.

Apply this to your next decision

A measured offline rate is useful when calculating the time to your next target. Use your effective income in a saving decision →

A duplicated multiplier can make measured earnings appear too low. Check whether income already includes a bonus →

Sources & scope

Core systems are described by the developer. Strategy is editorial guidance unless a specific test is cited. Exact prices, unlocks and rewards should be checked in your current game.

Report a discrepancy