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MULTIPLAYER EXTRA CARE

Astro Colony · Community Announcements · September 13, 2026

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Hey, Colonists!

In this major update finally multiplayer gets a proper care with more than 10 additional features that should make it a solid experience from start to finish. There are also some cool changes that are affecting single player as well, so check all changes below!

Also, to all the players who left negative reviews because of the multiplayer state, please check it again and see if everything works for you!

RELIABLE CLIENT SIMULATION


Having reliable client simulation with 1000 ms is not an easy task. There are many ways to make resources move ahead of a server or behind the server.


There are two types of corrections right now that allow for a 100% replicate outcome.



If the client has already pushed something in the wrong direction, resources are simply teleported back. This happens for the entire chain that was wrongly pushed.



If the client is behind and there are awaiting pushes, the server is overriding the simulation, allowing for synchronized moves. This is a saving situation where the server removes the conveyor belt, and resources cannot cross the gap. Right now they will still move like it was a conveyor belt there.



JUNCTIONS - STABLE MERGE



Even if the previous merge was working quite well, it is now improved for multiplayer to guarantee that all resources are always matching between client and server.


Devices and logic blocks are now creating conveyor connections.



WAITING FOR PLAYERS


To keep the simulation always in sync, it is important to detect connection loss and stop the simulation when the player cannot keep updating the game.

If a connection is lost for more than 2 seconds, the game will automatically pause with a notification.

NEW SYNCING


With the new initialization not using begin play but waiting for all systems to be fully replicated, it is now 100% sure that syncing will eventually succeed.



There were some actors in the game using Begin Play, so they all got modified to use a new, reliable path.



RESOURCES TRACKED WITH IDs


Every resources in the game has it's own unique ID that is set by the server. This makes it easier to find exact location and do correction if needed.



This resolves the removal of moving resources, as many times clients could accidentally remove resources in adjacent cells.

PIPES SHOWING DIRECTION



Improved pipes are offering stable merge and now are showing the latest direction that is used for the next push. Thanks to this, players will be able to recognize the direction and more easily override it with logic pushers.

IN GAME SYNCING



In case all multiplayer features fail and you encounter strange behavior or glitches, you can always sync the game quickly using in-game syncing button!
It is located in the Multiplayer Pause menu.

RELIABLE PLANET REPLICATION



Before the update some generated objects used the replication path, which, under poor network conditions, could result in a missing geyser or creature.
Currently, planet generation does not replicate anything, so the client always has the correct state. Geysers and creatures have been modified to communicate differently, without replication.

BATTERY



Every single feature in the game is now fully replicated, including batteries. Both the client and server can modify the state that will affect everyone.

IMPROVEMENTS



FIXES






Thanks guys so much for your support!
Tefel (Terad Games)
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