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NolimitHost

How to Change the Max Players on Your Space Engineers Server

Last updated: September 18, 2026

The player limit for a Space Engineers server is set with the MaxPlayers value in the world's session settings.

Step 1: Stop the Server

In the NolimitHost Game Panel, select your Space Engineers server and stop it from the Console page.

Step 2: Set MaxPlayers

  1. In the left sidebar, click Files and open Saves/<world>/Sandbox_config.sbc.
  2. Find the MaxPlayers line and set it: 
    <MaxPlayers>16</MaxPlayers>
  3. Save the file and start the server again.
Important: For a brand-new world that does not exist yet, set MaxPlayers in the SessionSettings block of SpaceEngineers-Dedicated.cfg. Once the world exists, the value in its Sandbox_config.sbc takes over.

Things to Consider

  • Slots vs hardware. Space Engineers is simulation-heavy. More players means more grids to simulate, which costs CPU and RAM. Only raise the limit to what your plan can handle.
  • Experimental mode. High player counts can require Experimental Mode to be enabled.
  • Simulation distance. SyncDistance in Sandbox_config.sbc controls how far apart players can be and still share physics. Raising it helps large groups but costs performance.

Related Performance Settings

Setting Purpose
SyncDistanceSimulation sync range between players. Higher allows more spread-out play at a performance cost.
TotalPCUTotal PCU budget across the world, which limits how much can be built.
AutoSaveInMinutesHow often the world saves. Lower values save more often but cost a little performance.
Tip: If the server struggles with the current player count, lowering SyncDistance and turning on trash removal is often more effective than reducing players.