Solarpunk Multiplayer: How to Play With Friends in a Shared World

To get Solarpunk multiplayer running and play with friends, one player must act as the Host by crafting and powering a Community Weaver Loom in their world. From this device, you can set your world's privacy to "Friends Only" or "Invite Only," then send invitations directly to your friends through the in-game Bio-Resonance Network menu. There is no separate multiplayer mode; co-op is seamlessly integrated into your existing single-player world, turning it into a persistent Shared World for up to four players.

01

What Exactly is a Solarpunk Shared World?tag

A Shared World is the foundation of Solarpunk's cooperative experience. It isn't a temporary lobby or a separate game mode. Instead, a host invites friends directly into their personal, persistent game world. When friends join, they bring their own customized characters, skills, and most of their inventory, but operate within the host's version of the world. This means the host's map layout, building placement, and main story progression are the law of the land.

The system supports up to four concurrent players, including the host. The person who owns the world is the Host, and anyone who joins is a Visitor. These roles come with different levels of permission, which is crucial for protecting the integrity of a world you've spent dozens of hours building. While Visitors can help with almost everything, the Host holds the ultimate authority over what can be permanently altered.

Here’s a breakdown of the key differences in permissions between a Host and a Visitor:

The most important takeaway is that progress is saved to the Host's world. If you join a friend's game and help them build a massive Hydro-Loop transit system, that structure will only exist in their world. When you return to your own game, your world will be exactly as you left it.

02

How to Host Your Own Shared World (Step-by-Step)tag

Ready to become a host? The process involves crafting a key piece of high-tier equipment and configuring your world for visitors. It's a mid-game objective, so you'll need to have established your basic infrastructure first.

Step 1: Craft the Community Weaver Loomtag

The Community Weaver Loom is the central device that connects your world to the Bio-Resonance Network, allowing others to join. It's a Tier 3 crafting recipe unlocked after you complete the "Geothermal Awakening" main story quest. To build it, you'll need to gather some relatively rare materials at a Fabricator bench:

• 20x Reclaimed Algae-Steel: Smelted from Iron Ingots and Algae-Resin. Algae-Resin is commonly harvested from the Sunken City biome.
• 5x Sunstone Shards: A rare reward for completing high-level Community Projects or found in Geothermal Vents.
• 1x Geothermal Core: A guaranteed drop from the boss at the end of the Kentaro-Sagan Geothermal Plant dungeon.

Once crafted, you can place the Community Weaver Loom anywhere in your base, but it won't function until it's powered.

Step 2: Powering the Loomtag

This isn't a simple solar panel job. The Loom is a power-hungry device that requires a constant 500 units of energy to maintain a stable connection. You have two primary options for this: connect it to a fully established Geothermal Power Plant or link it to a Power Grid supported by at least three fully upgraded Large Solar Arrays and a network of Energy Storage Batteries. If the Loom loses power, any Visitors in your world will be disconnected immediately.

Step 3: Generating Your World Seed and Setting Permissionstag

With the Loom placed and powered, interact with its main console. The first time you do this, it will generate a unique World Seed—a 12-digit alphanumeric code that acts as the direct address for your world. You don't need to write this down unless you plan to invite people who aren't on your friends list.

Next, you'll see the Multiplayer Settings menu. This is where you control who can join:

• Offline (Default): Your world is completely private.
• Friends Only: Anyone on your platform's friends list can see your world is active and join freely without a direct invite.
• Invite Only: Your world is hidden. No one can join unless you send them a direct invitation from the Bio-Resonance Network menu.

For your first few co-op sessions, "Invite Only" is the recommended setting to avoid any unexpected arrivals.

Step 4: Inviting Your Friendstag

Now for the final step. While the Loom's console is open, navigate to the "Bio-Resonance Network" tab. This will bring up your friends list. Simply select the friend you want to play with and click "Send World Invitation." They will receive a pop-up notification in their game, which they can accept to begin the joining process. You can invite up to three friends to fill your 4-player world.

03

How to Join a Friend's Gametag

Joining another player's world is much simpler than hosting. As long as the host has set everything up correctly, you can be in their world in under a minute.

Receiving an Invitetag

If a friend sends you an invitation, a non-intrusive notification will appear in the top-right corner of your screen. You can accept it directly from this prompt. Accepting will automatically save your current game and begin loading you into the host's world. You'll spawn in right next to their Community Weaver Loom.

Joining Manually Through the Network Menutag

If you missed the invite or your friend's world is set to "Friends Only," you can join manually. From your main menu, go to Bio-Resonance Network > Join a Shared World. This screen will show a list of all friends who are currently hosting an open world. Simply select their name and click "Join."

This is also the screen where you can join a world using its World Seed. If a player gives you their 12-digit code, you can type it in here to connect, even if they aren't on your friends list. This is a great way to join community worlds or play with creators.

What Happens When You Join?tag

When you enter a friend's world, you bring your character exactly as they are: your level, your skills, your equipped gear, and everything in your personal inventory. The only things that don't come with you are your own world's structures and placed items. You are a guest. Any resources you gather or items you craft while in their world will come back with you when you leave, which makes helping friends on resource runs a very rewarding activity.

04

Key Multiplayer Mechanics and How They Worktag

Co-op play in Solarpunk isn't just about having another person around; several core systems are designed specifically for teamwork.

Shared Quests and Progressiontag

When you're in a host's world, you can help them with any of their active quests. Progress is synchronized, so if you defeat a quest boss or collect a key item, it counts for the host. You'll receive a full share of the experience, currency (Sunstone), and item rewards. However, the quest completion itself is only marked in the host's journal. You can go back to your own world and complete that same quest again for your own world's progression.

Loot, Resources, and Shared Storagetag

This is a hybrid system. When you harvest a resource node (like a copper deposit or a patch of Lumina-Cotton), everyone in the vicinity gets their own instanced loot. This brilliant design choice eliminates any arguments over who gets what. The same applies to enemy drops and standard chest loot.

However, some things are shared. The host can craft a Community Cache, a special storage container with a shared inventory that everyone can access. It's perfect for pooling resources for a big building project. Be careful, though—what you put in there can be taken by anyone in the group!

The "Great Bloom" and World Eventstag

Periodically, worlds will experience a "Great Bloom" event. This is a massive, multi-stage community project where players must work together to cultivate a giant, symbiotic plant that provides powerful buffs and rare resources upon maturity. In multiplayer, the contributions of all players are pooled, making the objectives dramatically faster to complete. Completing a Great Bloom with a full team of four is one of the most satisfying experiences in the game and unlocks unique cosmetic rewards that are only available through co-op event participation.

05

Troubleshooting Common Connection Issuestag

Sometimes technology doesn't cooperate. If you're having trouble connecting, run through this checklist:

• Can't See a Friend's World? Ask the host to double-check that their world privacy is set to "Friends Only" or "Invite Only," not "Offline." Both players should also ensure their game versions are up to date.
• "Connection Timed Out" Error: This is often an issue with the host's internet connection. The host needs a stable, relatively fast upload speed to support three other players. A wired connection is highly recommended for the host.
• NAT Type Errors: On consoles, a strict or moderate NAT type can prevent peer-to-peer connections. Both players should aim for an "Open" NAT type. You can check this in your console's network settings. Sometimes, simply restarting your router can resolve this.
• World Progress Seems Out of Sync: This is not a bug, but a feature. Remember, only the Host's world state is being changed. Any progress you make on buildings or quests as a Visitor will not be reflected in your own single-player world.

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Frequently Asked Questions (FAQ)tag

Is there cross-play in Solarpunk? Yes, Solarpunk supports full cross-play between PC (Steam, Epic Games Store), PlayStation 5, and Xbox Series X|S. Players can invite friends from any of these platforms using their universal Solarpunk ID.

How many players can be in one Shared World? The maximum number of players is four: one Host and up to three Visitors.

Can I play with random players? Yes. By setting your Community Weaver Loom's privacy setting to "Open," your world will be listed in the public server browser. However, this allows anyone to join, so it's not recommended for your primary, personal world. Use it for dedicated community-build worlds instead.

What happens to my base and buildings if I join a friend's world? Nothing at all. Your world is saved and remains untouched while you visit another. When you choose to return to your world from the main menu, you'll find it exactly as you left it.

Do we all have to be online at the same time to play together? Yes. The multiplayer system is peer-to-peer, not a dedicated server. The Host must be online and in their world for any Visitors to be able to join and play.

A Better World, Built Togethertag

Solarpunk's multiplayer isn't just an add-on; it's a core part of its optimistic philosophy. Collaborating on a massive solar array, defending a community garden from blight, or simply watching the sunset from a tower you built together transforms the experience. It takes a bit of work to set up your first Shared World, but the reward is a truly special and hopeful cooperative adventure.