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Horizon CoLab: How Forza Horizon 6 is Finally Turning EventLab Into a Social Sandbox

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When Forza Horizon 5 launched EventLab in 2021, Playground Games accidentally built something bigger than a race editor. They built a creative scene. Four years later, EventLab communities on the Forza forums, YouTube, Reddit, and Discord are still trading share codes for parkour courses, rock-crawling trails, demolition derby arenas, and full-scale recreations of classic circuits. The tool was deep, the community was dedicated, and the creativity far outpaced what anyone at Playground probably expected.

But there was always one glaring ceiling.

You could only build alone.

Horizon CoLab, the headlining creative feature of Forza Horizon 6, is the answer to a request the community has been making loudly and consistently since at least late 2023. It’s also arguably the most significant evolution EventLab has ever received — and quietly, it might be one of the most important additions to the entire Horizon formula. And as of the April 20, 2026 Playground blog post, we now know CoLab isn’t arriving alone. The underlying EventLab toolset is getting a full quality-of-life overhaul alongside it.

Here’s everything we know so far.

freedom and discovery
Everything in Forza Horizon 6’s creative suite is co-op

What Horizon CoLab Actually Is

CoLab is the name Playground Games is giving to the multiplayer layer of Forza Horizon 6’s creative suite. It is not a replacement for EventLab — EventLab still exists as the underlying toolset. CoLab is the co-op building mode that sits on top of it.

The core pitch, confirmed across multiple Playground communications: up to 12 players total can enter a shared building session and construct events, environments, and full creations together in real time, anywhere in the open world of Japan. When you’re finished, you publish — and the result becomes part of the game’s community content catalogue, playable by everyone on Xbox, PC, Steam, and (later) PS5.

Playground’s own description of CoLab’s range captures the design intent well: it’s built both for “careful collaborators who build incredible events or areas to explore” and for people who just want to “place down ramps and smashables and create fun chaos for your friends as they drive through the open world.” Both ends of the spectrum are supported.

That “anywhere in the world” detail is doing a lot of heavy lifting. In Forza Horizon 5, EventLab events were anchored to specific locations, and while the toolset grew dramatically with the 2.0 update in 2023, you still felt the invisible lines of where building was “supposed” to happen. In Horizon 6, Playground is saying those lines are gone. Build on Shibuya Crossing. Build on a mountain pass on Mt. Haruna. Build in the Tokyo docks. Build anywhere.

In fact, build above anywhere — but we’ll come back to that.

What’s Multiplayer, and What’s Not

Here’s a detail people keep missing: not everything in Forza Horizon 6’s creative suite is co-op. Playground has been explicit about this.

Multiplayer building:

  • Horizon CoLab (the EventLab successor) — yes, up to 12 players

Solo building only:

  • Customizable Garages inside purchased homes
  • The Estate, the mountain valley you unlock where you can decorate and build freely in the open world

That split is interesting. The spaces that are fundamentally yours — your garage, your valley estate — are personal canvases. The thing that gets shared with the world — events, tracks, experiences — is the thing built socially. That’s a tidy design philosophy, and it tracks with how Horizon has always separated “your stuff” from “the community’s stuff.”

There’s one more tell in the April 20 blog post: Playground specifies that the new Undo and Redo functions are “for solo builders.” That wording is deliberate. It strongly suggests CoLab handles multi-user editing differently — probably without traditional undo stacks, since you can’t cleanly undo when twelve people are editing simultaneously. Expect CoLab to lean on per-player revert or save-state systems rather than the shared undo history solo mode gets.

The EventLab Upgrade Coming Alongside CoLab

Playground’s April 20 blog post confirms CoLab isn’t arriving as an isolated feature. The underlying EventLab toolset is getting a significant quality-of-life pass. This matters even if you never touch CoLab — and it compounds significantly when you do.

The new EventLab features in Forza Horizon 6:

  • Stamp tool — place the same prop repeatedly with a single button press. Minor on paper, huge in practice for anyone who’s ever built a track and manually placed 200 tire barriers one at a time.
  • Free Drive test mode — test your creation as you build it, without impacting the driving line or events. This eliminates one of the most tedious loops in FH5 EventLab: “build, save, publish, test, unpublish, edit, republish, retest.”
  • Undo and Redo (solo) — a genuinely glaring omission from FH5 is finally fixed. Solo-only, as noted above.
  • Precision Mode — a slower camera for fine prop placement, returning from FH5 with refinements.
  • Build anywhere with a few button presses — you no longer need to navigate to specific event creation points. Drop in wherever you are.
  • Movable start grid — this is the one most people are sleeping on. You can now move the race start grid anywhere within your Route Creator, which means you can build a full custom environment in the sky and move the start line up to it. Sky islands, aerial stunt courses, floating rally circuits — all now possible.
  • Auto-generated 12-position grids — when you start an event, EventLab auto-generates a 12-car starting grid, auto-aligning to roads where applicable. You can still fully customize grid layout (drag-style, circular, scattered) but the default just works.
  • Super7 folded into EventLab — the Challenge Creator is now part of EventLab. Challenges can be built anywhere in Japan and live in their own category within the EventLab menu. One fewer silo.
  • Improved Trending logic — the discovery system for community creations has been reworked. Playground hasn’t explained the algorithm, but they explicitly flagged it as improved.

Taken together, these aren’t small polish items. Free Drive test mode alone will probably halve the build-test-iterate time. Sky building opens design space that simply wasn’t accessible in FH5. Stamp placement turns what used to be a 90-minute chore into a 10-minute one.

And none of this requires CoLab. Solo builders benefit from all of it. CoLab just adds the multiplayer layer on top.

Why This Is a Bigger Deal Than It Sounds

You have to understand the scale of what EventLab became to understand why multiplayer support matters.

A quick tour of what the FH5 community built in EventLab solo: multi-level rock-crawling courses built with terrain manipulation. Precision drift arenas like Driftopia X. Full formula-car circuits with calculated elevation changes. Parkour-style stunt playgrounds. Demolition arenas. Recreations of Top Gear tracks. Full-on themed adventure maps, including an entire Japan-themed collaboration called “Co-Lab Japan” (yes, that name is now hilarious in retrospect) where creators like John Cee, GT Deny, TypeHardFark, and Veixity released a 12-event pack together.

That last one is the key example. These creators were already trying to collaborate. They just had to do it the hard way — one person builds, shares a blueprint, another person downloads it, modifies, shares back, repeat. For anything more complex than a basic layout, it was a workflow nightmare.

Horizon CoLab eliminates all of that. Two creators who each specialize in different things — say, one who’s great at terrain sculpting and another who’s a prop-placement wizard — can now log into the same session and just build. Live. Together. With free drive test mode so they can immediately try what they’ve built.

That’s a fundamentally different creative ceiling.

The Design Philosophy Behind It

Forza Horizon 6 Design Director Torben Ellert has been talking openly about the guiding principle for this entry: freedom and discovery. In the recent Official Xbox Podcast interview and the April 8, 2026 Xbox Wire preview, he kept coming back to the same word — agency.

“Ultimately, freedom is a core design pillar for us,” he told Xbox Wire. “We’ve really tried to not force you to go and do a specific thing, but instead, tempt you into going and doing them.”

That’s the lens to view CoLab through. It’s not just “EventLab but with your friends.” It’s a deliberate piece of a larger design language where the entire game is pulling away from icon-chasing and toward player-driven emergent experiences. The Collection Journal rewards exploration. The new “fog of war” map rewards discovery. Aftermarket Cars reward stumbling onto things. Open-world Car Meets reward social happenstance.

CoLab is the creative expression of the same idea. The world is yours — and now, it’s yours with your friends at the building tool level, not just at the playing level.

The Community Wish List, Partially Answered

Going back through the Forza forums, the request for multiplayer EventLab traces back years. A December 2023 forum post titled “Multiplayer Eventlab creator” laid out the case almost exactly as Playground has now implemented it: “invite 3 other friends to help assist in building your eventlab… people may have different ideas… this can be done with multiple members.” Replace “3” with “up to 11” (plus you, for the 12-player total) and that’s basically the shipping spec.

After the April 20 blog post, here’s where the community wish list stands:

Confirmed:

  • Multiplayer building — yes, up to 12 players
  • Build anywhere — yes
  • Cross-platform creator community — yes, via cross-save and cross-play
  • Better iteration loop — yes, Free Drive test mode
  • Undo/Redo — yes, for solo builders
  • Fine placement controls — yes, Precision Mode returns
  • Prop repetition — yes, Stamp tool
  • Build verticality — yes, arguably beyond what anyone asked for with movable start grids and sky building

Still unconfirmed:

  • Granular collaboration controls. Can the host give specific players permission to edit certain areas, lock-off sections, or grant “build rights” selectively? Or is it wide-open free-for-all once you’re in the session?
  • Attribution on published share codes. If 12 people build something together, who’s listed as the creator? The forum post from 2023 explicitly asked for shared credit — we’ll see if Playground honors that.
  • Conflict resolution. If two people try to edit the same prop simultaneously, what happens? The solo-only Undo/Redo is a hint that Playground has chosen not to try to solve shared undo history, but what does the conflict model look like?
  • Prop limits and budgets. FH5 had them; they’ll almost certainly return, but whether budgets scale up in CoLab sessions (12 people = more props?) is unaddressed.
  • Prefab importability from FH5. Strong bet: no, fresh catalogue. But unconfirmed.

Sharing, Discovery, and the Post-Launch Catalogue

Everything built in CoLab can be published to the game’s community catalogue. Forza Horizon 5 had an Editor’s Choice system where Playground highlighted a weekly community creation, promoting it inside the Creative Hub tab. That system has apparently been replaced — or at least augmented — by what Playground is calling “improved Trending logic.” The specifics haven’t been shared, but the pitch is a more dynamic, always-evolving catalogue of discoverable community content.

The cross-play factor compounds this. Forza Horizon 6 is the first game in the series with full cross-play and cross-save across Xbox Series X|S, PC (Microsoft Store and Steam), and PS5. The CoLab creator pool isn’t just Xbox players anymore. The community catalogue aggregates creations from every platform into a single shared library. Bigger audience, bigger reach, more creators discovering the tool — it should compound.

One piece of context worth noting: Super7 has been folded into EventLab as the Challenge Creator. In FH5, Super7 Challenges were their own separate system with their own activation points on the map. In FH6, they live inside the EventLab menu as a category. That consolidation is small but meaningful — it unifies what used to be three different creative systems (EventLab, Blueprint, Super7) into one cohesive toolset.

What to Watch For at Launch

Forza Horizon 6 launches May 19, 2026 (May 15 for Premium Edition early access), with the PS5 version coming later in the year. Here’s what I’m personally watching for in those first weeks of CoLab being in players’ hands:

  • The first high-profile Tokyo City race blueprint. Someone is going to build a full urban expressway circuit through Shibuya, probably within 72 hours of launch. Somebody else will build a touge course on Mt. Haruna. The speed at which top creators stake their claims is going to tell us a lot about how accessible the new toolset really is.
  • The first great sky build. The movable start grid is quietly one of the biggest creative unlocks in the entire feature set. Expect someone to build a full floating track within the first week. Expect it to be breathtaking, unhinged, or both.
  • Whether streamers use CoLab as content. EventLab was already a niche stream category in FH5. A 12-player collaborative build session with Free Drive testing has the potential to be much more watchable — think “construction roleplay” but for cars. If a handful of big creators start running CoLab streams, it becomes a discoverability engine for the feature itself.
  • How fast the “bad build session” horror stories start. With 12 randoms in a build session, things can go sideways. Playground’s moderation, permission, and kick/report tools in CoLab are going to get stress-tested fast.
  • Whether it gets used for non-racing creations. EventLab in FH5 was used for everything from minigame parks to pure art installations. Multiplayer plus Free Drive testing is going to accelerate that — expect themed build weekends, coordinated community projects, and stuff Playground never anticipated.
  • How the new Trending logic performs. Creator discoverability matters enormously for a UGC ecosystem. If Trending favors early viral hits too heavily, later creators struggle to get seen. If it surfaces variety well, the catalogue stays healthy.

The Bigger Picture

For years, the criticism leveled at the Horizon series is that it’s a single-player driving experience with multiplayer bolted on. That’s reductive — FH5’s shared open world, Eliminator mode, and Horizon Tour all pushed hard against that framing — but there’s a kernel of truth to it. The creative side of the game was almost entirely a solo act. You built alone, you shared, other people played.

CoLab flips that. Creation itself becomes the social experience. The thing you do with your friends isn’t just race — it’s make.

And the broader EventLab overhaul shipping alongside it means even solo creators get the best version of the toolset the series has ever had. Free Drive testing, undo/redo, stamp placement, precision camera, and buildable sky islands are all genuine improvements to the underlying craft, not just wrappers around the multiplayer feature.

That’s not a small shift. That’s a philosophy change. And if Playground pulls off the execution, Horizon CoLab could end up being the feature Horizon 7 is built around four years from now.

We’ll know if the reality matches the pitch on May 19.

Are you planning to jump into Horizon CoLab with friends at launch? What would you build first? Share your wildest ideas in the comments — and if you’ve got classic EventLab creations from FH5 you’re hoping to rebuild together in Japan, drop those share codes too.

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