How to Optimize Your Project Zomboid Server (B41/B42)

Note:

In this article, we propose a series of adjustments for the main sandbox parameters that have the greatest impact on the performance of your Project Zomboid server.

Depending on your server’s hardware capacity and the number of players, for some adjustments you will be able to use flexible values or choose the lowest value to achieve greater performance.

1. Log In to Your Panel

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2. Select the ‘Files’ tab

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3. Locate the ‘Server’ Folder

You can find the folder in /home/container/.cache/Server.

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4. Select the ‘SandboxVars’ File

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4.1. Reduce the Corpse Removal Hours

Enter the number of in-game hours after which corpses will be removed. The accumulation of many corpses can affect the FPS rate. Reducing the number of hours will allow continuous corpse cleanup.

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4.2. Reduce Blood Levels and Disable Fire Spread

(1) Reduce Blood Levels: Reducing blood levels can favor the visual performance impact.
Max value: 5 – Min value: 1.

(2) Disable Fire Spread: Disabling fire spread can help reduce the calculations the game must perform (especially in the case of accidental fires). Disabling this option does not affect molotov damage or campfire mechanics.

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4.3. Reduce the Graphical Features of the Weather

(1) Reduce Fog Levels: Reducing fog levels can favor the visual performance impact.
Max value: 4 – Min value: 1.

(2) Reduce Rain Levels: Reducing rain levels can favor the visual performance impact.
Max value: 3 – Min value: 1.

(3) Disable Snow on the Ground: Disabling this option can favor the visual performance impact (it does not affect winter mechanics).

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4.4. Reduce Vehicle Spawn

Reducing vehicle spawn can significantly contribute to game performance. However, reducing this value can also increase the difficulty of the experience.

Max value: 5 – Min value: 1.

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4.5. Reduce the Maggot Spawn

Changing the maggot spawn ‘In Bodies Only’ can slightly contribute to performance (especially in cases of heavy corpse accumulation).

Recommended value: 2.

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4.6. Reduce the Basement Spawn

Reducing the basement spawn can contribute to the map size and loading processes. It is not recommended to disable this option so as not to affect the gameplay experience.

Min value: 1 (not recommended) – Max value: 7.

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5. Reduce the Zombie Population

If you don’t know how to reduce the zombie population, you can view our ‘How To Change the Zombie Spawn Rates on Your Project Zomboid Server’ article.

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6. Enable Automatic Removal of Items From the Ground

If you don’t know how to enable the removal of items left on the ground, you can view our ‘How to Enable Automatic Cleanup of Dropped Items on Your Project Zomboid Server’ article.

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7. Reduce the Vehicle Speed Limit

If you don’t know how to reduce the vehicle speed limit, you can view our ‘How to Configure Vehicle Speed Limits on Your Project Zomboid Server’ article.

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8. Restart Your Server

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