- Ductworks multiplayer update: The game is now listed as "DUCTWORKS / Multiplayer upd" on Roblox, adding shared servers.
- Server capacity: Public stats show a maximum of 20 players per server.
- Co-op focus: Groups can plan duct routes, build together, and run HVAC airflow experiments.
- Verified reach: Over 806K visits, roughly 1.2K concurrent players, and a 90.9% rating as of October 2026.
- Best practice: Divide roles (planner, builder, tester) and change one design variable at a time.
What the Ductworks Multiplayer Update Includes
The Ductworks multiplayer update transformed the experience from a solo sandbox into a shared construction space. The official Roblox game page now carries "Multiplayer upd" directly in the title, signaling that shared servers are the current core of the game rather than a side mode.
The update centers on three pillars:
- Shared construction areas where multiple players place and connect duct sections in the same build space.
- Collaborative HVAC experimentation, letting groups compare layouts and observe airflow differences together.
- The established atmosphere the game is known for — house music, coffee, and a relaxed air-duct sandbox — now enjoyed with company.
The following table summarizes the confirmed facts from public game data:
| Detail | Confirmed Value | Source Notes |
|---|---|---|
| Game title | DUCTWORKS / Multiplayer upd | Official Roblox listing |
| Creator | Scaryneff73 | Official Roblox listing |
| Release date | 2026-09-10 | Roblox API snapshot |
| Last update | 2026-10-08 | Roblox API snapshot |
| Max server size | 20 players | Roblox API snapshot |
| Total visits | 806,918 | Roblox API snapshot |
| Current players | ~1,277 | Roblox API snapshot |
| Peak concurrent | ~2,412 | Rolimons snapshot |
| Rating | 7,952 likes / 797 dislikes (90.9%) | Roblox API snapshot |
Player counts and visit totals above reflect a snapshot taken on October 8, 2026. Because the game updated the same day, numbers are likely to shift — always check the official Roblox page for live figures.
How Multiplayer Servers Work After the Update
With the multiplayer update live, up to 20 players can share a single server. That capacity shapes how group projects should be organized: a full server can support several small build teams, but uncoordinated building quickly becomes chaotic.
Server Capacity at a Glance
| Server State | Typical Experience | Recommended Approach |
|---|---|---|
| Nearly empty (1-4 players) | Quiet, full build freedom | Ideal for large solo-style layouts |
| Medium (5-12 players) | Active shared spaces | Agree on zones before building |
| Full (13-20 players) | Busy, overlapping construction | Use roles, build in sections |
Co-op Roles That Actually Help
Layout Planner
- Maps the main duct route and connection points
- Marks branch zones and destination areas
- Keeps the group's design coherent
Builder
- Places and connects duct sections
- Follows the agreed route precisely
- Flags any section that must deviate
Tester
- Runs airflow checks after changes
- Records differences between designs
- Reports which section broke the route
Even on a 20-player server, teams of 2-4 build most efficiently. Assign one player as the final reviewer before extending or replacing any section — this prevents two players from editing the same duct at once.
Step-by-Step: Starting a Shared Build
Follow this workflow to get a multiplayer HVAC project running smoothly after the update:
Join the Same Server
Coordinate with friends to enter the same Ductworks server, or use Roblox server controls to meet up in a less crowded instance.
Agree on the Project Goal
Decide whether the build focuses on air distribution, airflow testing, or creative construction before placing a single duct.
Mark the Main Route
Have the layout planner identify the start point, the main path, and the areas that should receive airflow.
Build a Small Test Section First
Construct a compact portion of the route and confirm it behaves as intended. A smaller first build makes problems easy to spot.
Expand One Change at a Time
Add corners, branches, and extensions gradually, retesting after each modification so the cause of any issue stays clear.
Airflow problems in Ductworks almost always trace back to the most recent structural change — a gap, a reversed section, or an untested branch. Testing after every edit keeps multiplayer troubleshooting manageable.
Multiplayer HVAC Experiments to Try
The update makes comparative experiments far easier, since one player can rebuild a section while another observes the airflow result. These repeatable tests are designed for the current version:
| Experiment | Setup | What You Learn |
|---|---|---|
| Straight vs. turned route | Two similar-length routes, one direct, one with bends | How route shape changes airflow behavior |
| Single branch vs. balanced branches | One route to a single destination vs. a split design | How branch structure affects distribution |
| Incremental expansion | Start minimal, add one section per round | When a larger layout starts behaving differently |
| Rebuild-and-observe | One player rebuilds while another documents | Real-time cause and effect between designs |
The golden rule of Ductworks experimentation: adjust a single design variable per test round. Groups that change multiple sections simultaneously cannot identify which adjustment caused the observed result.
Multiplayer Readiness Checklist
Before launching a group project in the updated version, confirm your team is set up correctly:
Before Your Group Build:
- Everyone joined the same server (max 20 players)
- Project goal agreed: distribution, testing, or creative build
- Roles assigned: planner, builder, tester
- First test section kept compact and easy to inspect
- Testing routine agreed: check source, route, transitions, branches
What Is and Isn't Confirmed
Public information about Ductworks remains limited, and this wiki only publishes what can be verified. Here is the current confirmation status:
| Topic | Status | Notes |
|---|---|---|
| Multiplayer servers | Confirmed | Part of current official listing |
| Max 20 players per server | Confirmed | Roblox API data |
| Dated public changelog | Not available | No version history published |
| Official codes | None confirmed | No verified redemption system found |
| Future update contents | Not announced | Follow the official page |
No official Ductworks codes or redemption feature are currently confirmed. Do not enter code strings from third-party lists — treat only in-game or official announcements as valid.
FAQ
Q: What is the Ductworks multiplayer update?
It is the current version of the Roblox experience DUCTWORKS, which now supports shared servers where up to 20 players build duct systems and run HVAC airflow experiments together. The official game listing carries 'Multiplayer upd' in its title as of October 2026.
Q: How many players can join one Ductworks server?
Public Roblox API data confirms a maximum server size of 20 players. Peak concurrent player counts across all servers have reached roughly 2,400 players.
Q: Is Ductworks free to play with friends?
Yes, the core multiplayer experience is accessible through the standard Roblox platform. Some optional paid items, such as custom appearance and playlist features, have appeared in public listings, but the base game does not require them.
Q: When did the multiplayer update release?
The game launched on Roblox on September 10, 2026, and the multiplayer-focused listing was most recently updated on October 8, 2026, based on Roblox API data.