Stormworks: Build and Rescue Wiki


How to play multiplayer?

Stormworks uses Steam networking, so all you need is to host a game and your friends can join to you (or you can invite them). Just like in many other games on Steam.

Why am I or my friends unable to connect?

In most of the cases there shouldn’t be any issues, because modern firewalls can automatically allow all needed connections.

But, if your friends can’t see your game, then you should change settings of your firewall to allow Steam inbound and outbound connections.

If your friends can see your game, but can’t join (“Waiting for server…” message) then you should allow inbound and outbound connections for Stormworks game.

Why is there multiplayer lag?

Currently the server runs at the speed of the slowest client, so it is normal for the game to become slow if someone joins the game who has a PC that is below min spec. As of major update #10 (, Multiplayer no longer runs at the speed of the slowest client.

What are the system requirements?

CPU: Intel i5 4th Generation (Intel i7 6th Generation recommended)*


GPU: Intel HD 6000 / GeForce 550 (GeForce 750 / Radeon R7 360 recommended)**

OS: Windows 7 / 8 / 10, MacOS

  • CPU matters much more in most cases, since it’s a sandbox game based on physics simulation. The larger and more complex the vehicle you spawn (or the greater number of vehicles), the more time and resources will be spent on physics calculations.
    • Graphics card must support OpenGL 3.2 or higher

How to report a bug?

We strongly recommend you use the Report a Bug button which you can find in the top right corner of the in-game menu. This logs you in so you can upvote, create posts, and comment.

If you wish to just view the bug tracker, click this link:

Where is the save folder?

All your vehicles are saved here %appdata%\Roaming\Stormworks\data\vehicles

Your mission playlists stored here %appdata%\Roaming\Stormworks\data\missions

World saves are located here %appdata%\Roaming\Stormworks\saves

Where is the game/minidump/log.txt folder?

The easiest and most straight-forward way to find this is right-clicking Stormworks in Steam library then Properties > Local files > Show local files...

What is the game engine/language?

It’s our own engine written in C++. We use Bullet as the physics engine.