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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Chunk persistence is the rule that determines how long 7 Days to Die keeps a changed world chunk in the save instead of restoring that chunk to its original generated state. The main server setting is MaxChunkAge, measured in in-game days since the chunk was last visited. The current documented default is -1, which disables age-based expiry. A nearby land claim or bedroll can also protect a chunk from this type of reset.
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Persistence is not the same as whether a chunk is currently loaded, rendered, or uncovered on the map. A chunk can be unloaded and still remain fully saved. There is also a separate storage-pressure mechanism: SaveDataLimit can cause saved chunks to reset when the save reaches its configured size allowance, even if MaxChunkAge is disabled.
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What chunk persistence actually means
The game world is divided into chunks: manageable sections of terrain and world data that the game loads and saves as needed. When you or another player changes a chunk, those changes become part of the save. Buildings can be dismantled, terrain can be dug out, blocks can be placed, containers can be filled, and other world state can change.
Chunk persistence answers one question: when is the game allowed to discard those saved changes and regenerate the chunk’s original state? If the chunk remains persistent, leaving the area does not by itself erase the work. When a reset is permitted and occurs, the game can restore the generated world data rather than preserving the modified version.
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- Cooperate or Compete – Work together to build settlements or against each other in a wasteland where zombies and outlaws rule the land.
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Persistence is different from loading
Loading controls what the game currently keeps active around players. It affects what is simulated, displayed, or available without another load operation. Persistence controls how long modified data remains in the save. These systems are related to performance and storage, but they are not interchangeable.
- An unloaded chunk may still retain every saved change.
- A chunk can be uncovered on the map without being subject to an age reset.
- Changing a discovery or map-data limit does not automatically change the reset timer.
Therefore, a base disappearing after a long absence is not proof that the area was merely unloaded. You need to check the server’s persistence and storage settings.
How MaxChunkAge determines an age-based reset
MaxChunkAge is the practical control for age-based chunk expiry. The server documentation describes it as the number of in-game days that must pass since a chunk was visited before it can reset to its original state if it is not revisited or protected.
| Setting value | What it means | What starts the clock | What can prevent this reset |
|---|---|---|---|
-1 |
Age-based expiry is disabled. This is the current documented default. | Nothing; there is no configured age threshold. | The age mechanism is already disabled, although a separate storage limit can still matter. |
| A positive number | The chunk becomes eligible for an age-based reset after that many in-game days without a qualifying visit. | The last visit to that chunk. | Revisit the chunk, or keep it protected by a nearby land claim or bedroll as described in the server documentation. |
The timer uses game time, not calendar time
If MaxChunkAge is set to a positive value, count the game’s in-game days. A setting of 30 does not mean 30 real-world days, 30 server restarts, or 30 days on your calendar. The relevant interval is the game’s own day progression.
The setting is an eligibility threshold, not a promise that a reset happens at the exact moment the threshold is reached. The important operational point is that an unvisited, unprotected chunk can become eligible once the configured number of in-game days has passed.
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- Explore – Huge, rich environments, with unique biomes and worlds up to 100 square kilometres in size.
- Craft – Handcraft and repair weapons, clothes, armour, tools, vehicles, with hundreds of recipes and schematics.
- Build – Design your fort with traps, electricity, auto turrets, and gadgets to survive in a fully destructible and mouldable world.
- Cooperate or Compete – Work together to build settlements or against each other in a wasteland where zombies and outlaws rule the land.
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What “reset to its original state” means
An age reset allows the game to discard the saved, modified version and return the area to its generated state. That can affect player-made block changes and other saved world state in the affected chunk. Treat an eligible chunk as disposable: do not leave an unprotected base, storage cache, farm, or resource route there if the server uses a finite MaxChunkAge.
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Yes, the documented exception for age-based expiry includes protection from a nearby land claim or bedroll. The wording is proximity-based: the claim or bedroll must be in close proximity to the chunk it is intended to protect.
Protecting a base
Place the land claim or bedroll so that the base and the important surrounding area fall within the protection the game recognizes. Do not assume that a claim somewhere in the same town protects every neighboring chunk. If the base spans a chunk boundary, verify that the protection covers the complete area that matters.
Protecting a route or outpost
A bedroll or land claim can be useful for a small outpost, a mining entrance, or a supply stop that you will not visit often. Protection is not a substitute for checking the server’s settings: it addresses the documented age-based exception, while a storage-cap reset is a separate mechanism.
What protection does not prove
A claim or bedroll does not make a save mathematically permanent under every future version or hosting configuration. It is the protection described for the age-based reset rule. Administrators still need to account for storage limits, backups, server changes, and any rules added by a particular release or hosting panel.
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Why -1 does not mean every reset is impossible
With MaxChunkAge=-1, a chunk does not reset merely because it has been unvisited for a configured number of in-game days. This is why many players describe the value as “unlimited persistence.” That description is accurate only for the age-based path.
SaveDataLimit is a separate saved-game size allowance. If the save reaches that cap, the server can reset saved chunks to free space. The trigger is the size of the saved game, not the number of days since a player visited a location. Consequently, a server can have age-based expiry disabled and still lose saved chunk data when storage pressure causes this other reset path to activate.
How the two controls differ
| Question | MaxChunkAge |
SaveDataLimit |
|---|---|---|
| Trigger | Elapsed in-game days since a chunk was visited. | The saved game reaching its configured size allowance. |
| Scope | An unvisited chunk, subject to protection exceptions. | The saved game’s overall storage pressure and the chunks selected for space recovery. |
| Player or administrator response | Revisit the area, maintain a nearby land claim or bedroll, or disable age expiry with -1. |
Review, increase, or disable the save-size limit where the server configuration permits it, and manage save growth. |
Does it explain a reset with MaxChunkAge=-1? |
No; age expiry is disabled. | It may, if the save reached its cap. |
Because these mechanisms are independent, troubleshooting should always check both values instead of stopping after finding -1.
What MaxUncoveredMapChunksPerPlayer does—and does not do
MaxUncoveredMapChunksPerPlayer limits map discovery and the saved data associated with uncovered map chunks for each player. It can affect how much map information is retained and can help control file growth, but it is not the chunk-reset timer.
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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesDo not use this setting to answer “How long do chunks last?” For that question, inspect MaxChunkAge first, then check SaveDataLimit if the save may be under storage pressure.
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How to check the settings on a server
Menu names differ between releases and hosting panels, so use the labels exposed by your current server version rather than assuming a universal single-player interface. The following process applies whether the settings are shown in a host control panel or a server configuration file.
- Open the server’s settings. Stop the server first if your host requires it before editing configuration values.
- Find
MaxChunkAge. Record the exact value, including whether it is-1or a positive number. - Interpret the value in game days. A positive value is the age threshold for an unvisited chunk; it is not a real-time duration.
- Find
SaveDataLimit. Check whether a saved-game size cap is configured and whether the host reports current usage or warnings. - Check protection at important locations. Confirm that bases, outposts, and critical storage areas have a nearby land claim or bedroll when a finite age threshold is in use.
- Save the configuration and restart as required. Follow the host’s apply or restart procedure so the server actually loads the new values.
- Verify after restart. Reopen the settings and confirm that the values were retained. Keep a backup before making changes to a long-running world.
If the panel uses a different display name, search its server-setting documentation for the exact keys MaxChunkAge and SaveDataLimit. The available labels and placement are not guaranteed to be identical across every release or host.
Common situations and what they mean
“I left my base for several in-game days and it was still there.”
That result is consistent with MaxChunkAge=-1, a chunk that had not yet reached its positive threshold, or protection from a nearby land claim or bedroll. It does not tell you which condition applied; inspect the settings and the location.
“An abandoned building reverted, but my claimed base did not.”
A finite MaxChunkAge could have made the unvisited building eligible while the protected base remained exempt from that age-based reset. Check whether the protection actually covered the base’s chunk.
“My server uses -1, but old world data disappeared.”
Check SaveDataLimit and the server’s save-size reports. Storage pressure can trigger resets independently of the age timer. Also review backups and any administrator actions before concluding that an age reset occurred.
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- Explore & Craft - Huge, unique and rich environments, offering the freedom to play the game any way you want while you craft and repair weapons, clothes, armor, tools, vehicles, and more.
- Build - Take over a ruin, or build from the ground-up. Design your fortress to include traps and defensive positions to survive the undead - the world is fully destructible and moldable.
- Cooperate or Compete - Includes two player split screen mode, with additional online multiplayer modes and features to be revealed in the near future.
- Create - Unleash your creativity and build the ultimate world by yourself friends. Enjoy unlimited access to nearly 400 in-game items and 1,200 unique building blocks in creative mode.
- Improve - Increase your skills in a multitude of active and passive disciplines. 7 to Die is the only true survival RPG with nearly 50 multi-tiered skill and perk groups.
“The map is uncovered, so why did the chunk reset?”
Map discovery is not persistence. An uncovered-map limit and the chunk-age timer serve different purposes. Inspect MaxChunkAge, protection, and the save-size limit instead.
“The chunk looks unchanged after I return.”
That normally means the saved version was retained, but visual appearance alone does not identify the setting responsible. A chunk can remain unchanged because age expiry is disabled, because it has not reached the threshold, or because it is protected.
A practical policy for long-running worlds
- For a persistent community world: use
MaxChunkAge=-1if the goal is to prevent ordinary age-based cleanup, then monitor save size and backups because storage pressure remains a separate risk. - For a rotating or self-cleaning world: choose a positive in-game-day threshold and tell players that unvisited, unprotected areas may return to their generated state.
- For valuable bases: use the documented land-claim or bedroll protection and keep an external backup of the save.
- For limited storage: treat
SaveDataLimitas an administrative capacity decision, not as a persistence timer. Increasing or disabling it may require more disk space and more deliberate backup management. - For shared routes: place protection where it covers the actual chunk containing the structure or cache, especially when an installation crosses chunk boundaries.
Quick diagnostic checklist
- Was the missing area a changed chunk or an untouched generated area?
- What is the current
MaxChunkAgevalue? - If it is positive, how many in-game days passed since the last visit?
- Was a nearby land claim or bedroll present and close enough to protect the area?
- What is configured for
SaveDataLimit, and did the save reach that allowance? - Could a server update, restoration, administrator action, or failed save explain the change instead?
- Is the report based on an exact backup comparison, or only on what the player remembers seeing?
This sequence separates the documented age rule from storage pressure and from unrelated save-management events.
Does chunk persistence work the same in single-player?
The documented references describe server-side behavior and defaults. Single-player menus, local-world controls, and labels can vary by game release, so do not assume that every edition exposes the same wording or every server key in the same place. If a local game does not show these settings, its behavior may be governed by the release’s built-in rules rather than an editable server panel.
For a hosted multiplayer world, the administrator or host controls the effective values. Individual players cannot reliably infer persistence from their map view or from whether a chunk is currently loaded.
Quick Recap
The short answer to the questions players ask most
- How long do chunks last? With a positive
MaxChunkAge, they can become reset-eligible after that many in-game days without a visit or qualifying protection. With-1, age alone does not expire them. - Will my base reset if I leave? It depends on
MaxChunkAge, protection from a nearby land claim or bedroll, and whether storage pressure triggers a separate reset. - Does unlimited persistence stop all chunk resets? No.
-1disables the age-based timer, butSaveDataLimitcan still cause resets when the save reaches its cap. - Is persistence the same as chunk reset time? Persistence is the retention rule. The reset time is the in-game-day threshold configured by
MaxChunkAgewhen that mechanism is enabled.
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