The Roblox Motion to Compel Arbitration Lands 22 September — and the EFAA Decides Half of MDL 3166

The Roblox motion to compel arbitration that matters most is due on 22 September 2026: Roblox Corporation and Discord Inc. are reported to be filing omnibus motions across more than 160 actions in MDL No. 3166, the child sexual exploitation docket centralized before Chief Judge Richard Seeborg in the Northern District of California. Whether those motions succeed will turn less on the usual questions of notice and assent than on a 2022 federal statute and on a single date — 3 March 2022 — which sorts the inventory into claims the companies can still push out of court and claims they cannot.

That is a different framing from the one the first page of search results offers. The consumer-facing explainers count cases and describe the allegations; the defense-side alerts dissect one Ninth Circuit memorandum; the plaintiff-firm posts announce wins. None of them puts the four moving pieces — the omnibus filing, the Ending Forced Arbitration of Sexual Assault and Sexual Harassment Act, the waiver line of cases, and the Delegation Clause — on the same page, or explains which of them the court has to resolve first.

What Roblox and Discord are filing on 22 September 2026

MDL No. 3166, In re: Roblox Corporation Child Sexual Exploitation and Assault Litigation, was created by the Judicial Panel on Multidistrict Litigation (JPML) in December 2025, on a transfer order signed by Panel Chair Karen K. Caldwell on 12 December 2025 sending the first tranche of federal actions to the Northern District of California. The docket has grown steadily since: fewer than a hundred actions at centralization, more than 180 on the September 2026 reporting.

The claims share a structure. A minor was contacted on the Roblox platform, groomed there, and moved to a second service — Discord in most of the lead cases, sometimes Snapchat or Instagram — where sexually explicit material was solicited or exchanged, and in a subset of cases the contact ended in physical assault or abduction. The defendants are sued not for the predator's conduct but for their own: inadequate age assurance, defective safety design, and representations to parents about how safe the platforms were.

Both companies have said from the start of the MDL that they would move to compel arbitration in many if not all cases, that the terms of their arbitration provisions have been amended repeatedly over the years, and that enforceability would turn on case-specific facts — when the exploitation occurred, which version of the terms was in force, and how the user manifested assent. In July 2026 the parties filed a set of arbitration bellwether complaints against Roblox and Discord precisely so that those case-specific questions could be resolved on a manageable number of records rather than 160 times over. The 22 September filing is the product of that structure: a coordinated Motion to Compel Arbitration aimed at the whole inventory, resting on a small number of representative fact patterns.

Four tracks are running at once, and they do not run in the same direction.

Track	Forum	Status	What it decides
Omnibus motions to compel	MDL No. 3166, N.D. Cal. (Seeborg)	Reported for filing 22 September 2026, across 160+ actions	Whether the federal inventory stays in court
EFAA scope	San Mateo County Superior Court and others	Motions denied, February 2026	Whether a platform claim "relates to" a sexual assault dispute
EFAA appeal	California Court of Appeal, First Appellate District	Briefed; three U.S. senators filed an amicus brief on 28 August 2026	Whether a state appellate court blesses the trial courts' reading
Waiver	Ninth Circuit	Affirmed 3 September 2026 in Uhl v. Roblox Corporation, No. 25-5057	Whether litigating first forfeits the clause

What is Roblox's motion to compel arbitration in the MDL?

It is a request that the district court enforce the arbitration clause in the Roblox Terms of Use — and, for Discord, its own terms — under the Federal Arbitration Act (FAA), send the claims to individual arbitration, and stay or dismiss the court actions. Because the plaintiffs are minors or were minors when they registered, the motion has to establish three things that an ordinary consumer motion does not: that a valid Arbitration Agreement was formed with or on behalf of a child, that the child has not effectively disaffirmed it, and that the claim is not one the EFAA takes out of arbitration at the claimant's election.

The first of those is the easiest for the defendants. Federal courts have repeatedly found that the Roblox sign-up flow gives conspicuous notice — the user clicks "Sign Up" or "Continue" directly beneath language binding them to the terms — and that the terms themselves are not hidden. The 2023 version of the Roblox terms warned in capitals that the user was giving up the right to file a lawsuit in court before a judge or jury, including in a class action, for disputes subject to arbitration. That is close to the strongest form a Class Action Waiver takes in consumer drafting.

The second and third are where the MDL will be won or lost.

Did the Ninth Circuit rule against Roblox on arbitration?

Yes, but on a ground that does not travel well to the MDL. On 3 September 2026 a Ninth Circuit panel — Judges Kenneth K. Lee, Patrick J. Bumatay and Jennifer Sung — affirmed the denial of Roblox's motion to compel arbitration in Uhl v. Roblox Corporation, No. 25-5057, in an unpublished memorandum. The holding was Waiver of Arbitration, not unconscionability and not the EFAA.

The test the panel applied has two elements: knowledge of an existing right to compel arbitration, and intentional acts inconsistent with that right. Roblox had removed the case to federal court, filed a comprehensive motion to dismiss, and litigated threshold merits questions for roughly a year before moving to compel — explaining the delay as the time needed to obtain information identifying which user agreement applied. At argument Judge Sung put the problem plainly, observing that the company had chosen to file a motion to dismiss rather than seek the discovery that would have let it enforce the clause, and that this is "literally what we have said is inconsistent with pursuing your right to arbitrate." Judge Bumatay dissented, treating the conduct as delay or forfeiture rather than the intentional relinquishment waiver requires.

Two things follow for the MDL. First, Uhl is a memorandum disposition: it is not precedent, and a defendant can distinguish it on the record in any case where it moved promptly. Second, and more importantly, the defendants in MDL No. 3166 have not repeated the Uhl sequence. They announced the arbitration defense at the outset, the court built a briefing structure around it, and the omnibus motions arrive while the MDL is still in its threshold phase. Waiver is therefore a weaker weapon inside the MDL than it was in Uhl — which is exactly why the plaintiffs' side has invested in the EFAA instead.

What the EFAA does, and the date that splits the docket

The Ending Forced Arbitration of Sexual Assault and Sexual Harassment Act of 2021 was signed on 3 March 2022 and is codified at 9 U.S.C. §§ 401-402. Section 402 provides that, at the election of the person alleging conduct constituting a sexual assault dispute or a sexual harassment dispute, no pre-dispute arbitration agreement is valid or enforceable with respect to a case that is filed under federal, tribal or state law and relates to the sexual assault dispute or the sexual harassment dispute.

Three features of that text drive the Roblox fight.

It is elective, and it is the claimant's election. The clause is not void; it is unenforceable if and when the claimant says so. A defendant cannot cure the problem by drafting, and cannot obtain the benefit of the clause by consent it obtained before the dispute arose.

It reaches the whole case, not the assault count. The statute speaks of a case "which relates to" the dispute, not of claims for assault. That is what the San Mateo County Superior Court relied on in February 2026 when it refused both companies' arbitration motions in an action arising from the grooming, abduction and sexual assault of a ten-year-old girl. The court held that the complaint sufficiently alleged a sexual assault dispute, that a claim against an online platform can relate to such a dispute even though the perpetrator was a third party, and that the statute is not confined to workplace disputes or to assaults occurring on a business's premises. It also held that Discord had failed to show the minor knowingly and voluntarily waived her rights under the statute. Those rulings are now on appeal in the California Court of Appeal, First Appellate District, in a companion matter involving a thirteen-year-old boy, where Senators Dick Durbin, Kirsten Gillibrand and Richard Blumenthal filed an amicus brief on 28 August 2026 urging the court to keep the claims in open court.

It has a date. The statute applies to disputes or claims that arose or accrued on or after 3 March 2022. Nothing in the EFAA reaches back. This is the least-covered and most consequential feature of the whole dispute, because the Roblox inventory is not evenly distributed in time: the platform's exposure runs back more than a decade, and a material share of the MDL plaintiffs describe conduct that began well before March 2022.

Claimant profile	EFAA election available?	Defense posture on 22 September
Abuse occurring wholly on or after 3 March 2022	Yes	Motion likely fails on the EFAA alone if the case is pleaded as a sexual assault dispute
Abuse beginning before and continuing after 3 March 2022	Contested — turns on accrual and on continuing-conduct pleading	The live battleground; expect claim-by-claim argument
Abuse occurring wholly before 3 March 2022	No	Ordinary FAA analysis: notice, assent, disaffirmance, unconscionability
Non-assault claims (privacy, consumer protection, addictive design)	No, unless the case relates to a sexual assault dispute	Ordinary FAA analysis; Garcia is the template

For a practitioner, the table is the story. The EFAA does not answer the arbitrability question for the MDL; it answers it for a slice of the MDL, and the size of that slice is an empirical question about when each plaintiff was harmed. Everything outside the slice is governed by ordinary contract doctrine — and there, the defendants have been winning.

Why one court sent a Roblox case to arbitration and another refused

Because the cases were not about the same thing, and that distinction is the one every competing explainer collapses.

In Garcia v. Roblox, a children's privacy class action in the Central District of California alleging violations of the Electronic Communications Privacy Act, the Stored Communications Act and the Children's Online Privacy Protection Act, the court granted Roblox's motion to compel arbitration in February 2026. Its reasoning is a compact statement of where consumer arbitration law stands:

• Notice and assent. Users received conspicuous notice that clicking "Sign Up" or "Continue" bound them to the Terms of Use containing the Arbitration Clause.
• Unconscionability. There was some Procedural Unconscionability inherent in a Contract of Adhesion, but the degree was low because the plaintiffs affirmatively agreed to conspicuous terms — and low procedural unconscionability demands a strong showing of Substantive Unconscionability that was not made.
• Delegation. The 2025 terms contained a Delegation Clause assigning disputes about interpretation, enforceability and scope to the arbitrator, which the court found clear and unmistakable. For post-2025 claims, that means the Gateway Questions go to the arbitrator, not the judge.
• Minority. Although a minor can ordinarily disaffirm a contract for lack of capacity, the court treated the parents' assent as binding the child through a principal-agent relationship, and found equitable considerations weighed in favor of enforcement.

No part of that analysis is inconsistent with the San Mateo rulings. Garcia involved privacy claims with no sexual assault dispute anywhere in the complaint, so the EFAA was never in play; the statute, not the contract, is what separates the two outcomes. A defendant reading only Garcia would conclude the clause is bulletproof. A claimants' firm reading only the San Mateo rulings would conclude it is worthless. Both readings are wrong, and the omnibus motions will produce a ruling that says so in terms.

Are minors bound by Roblox's Terms of Use?

Often, yes — and this is the quiet defense win inside the MDL. The infancy doctrine lets a minor disaffirm a contract, and plaintiffs routinely invoke it. But courts have narrowed the escape in two ways that matter on a consumer platform.

First, where a parent set up or paid for the account, or otherwise assented, courts have bound the child through agency principles rather than treating the child as the sole contracting party. Second, where a minor purports to disaffirm the contract as a whole rather than attacking the delegation provision specifically, the disaffirmance is itself a challenge to the validity of the container agreement — and under settled FAA doctrine a challenge to the contract as a whole goes to the arbitrator, not the court. A general disaffirmance can therefore be the one argument that guarantees the plaintiff ends up in front of an arbitrator deciding whether they should be in front of an arbitrator.

Timing compounds the problem. California authority has treated disaffirmance shortly after majority as timely, which means a claimant who reaches eighteen and sues promptly is in a better position than one who waits. In an MDL populated by claimants who were children when they registered and are now adults, the disaffirmance defense will be strongest for the plaintiffs who moved fastest.

The sequencing problem: arbitrability, delegation, and Section 230

MDL No. 3166 has two threshold defenses stacked on top of each other, and the order of decision changes the value of the entire docket.

Section 230 of the Communications Decency Act, together with First Amendment arguments, is the defense most commentators expect to be the decisive event of the MDL's first phase. It is also the one the defendants would most like to have decided by Chief Judge Seeborg, because a favorable published ruling would reach every case at once. Arbitration is different: it is not a merits defense at all, and a successful motion does not resolve the claims — it relocates them, one at a time, into a confidential forum where no precedent is generated and no public record accumulates.

That is why sequencing is contested. If arbitration is decided first and granted for the pre-March-2022 cohort, a large share of the inventory leaves the federal docket before any Section 230 ruling exists, and each claim is then individually negotiated against a claimant with no aggregation leverage. If Section 230 is decided first and the claims survive, the arbitration motions are argued against a defendant whose merits exposure has already been established.

Layered under both is the Delegation Clause. Where the 2025 terms apply, the defendants' position is that the judge decides almost nothing: Arbitrability itself belongs to the arbitrator. Plaintiffs' answer is that the EFAA is not an arbitrability question at all but a statutory command addressed to courts about the validity and enforceability of the agreement — a question Congress assigned to the judge by writing "no pre-dispute arbitration agreement … shall be valid or enforceable" into the United States Code. Which characterization prevails will do more to shape platform litigation than any single Roblox ruling, because every large consumer platform has the same delegation language in its terms.

What it means for defendants, claimants' counsel, drafters and funders

For platform defendants. The arbitration defense is now date-dependent rather than clause-dependent, and no amount of redrafting fixes the exposure for post-March-2022 conduct. The operational implication is records: the value of the defense in any given case depends on establishing when the conduct occurred and which version of the terms was in force, which makes account-provenance data a litigation asset rather than a compliance artifact. The second implication is Uhl: move to compel early or not at all. A year of merits motions bought Roblox a waiver finding and a published account of how it behaved.

For claimants' counsel. The EFAA election is the single highest-value pleading decision in these cases, and it is a pleading decision — the San Mateo courts looked at whether the complaint sufficiently alleged a sexual assault dispute. For clients whose conduct straddles March 2022, accrual and continuing-conduct allegations are doing real work. Where the EFAA is unavailable, attacking the delegation provision specifically, rather than the agreement as a whole, is the difference between a judge deciding the question and an arbitrator deciding it.

For clause drafters outside this litigation. Three lessons transfer to any consumer or platform agreement. A Delegation Clause drafted to be clear and unmistakable continues to do more work than any other sentence in a terms-of-use document. Conspicuous assent flows — the click directly beneath the binding language — continue to defeat procedural unconscionability arguments at the margin. And a carve-out is worth more than a fight: terms that already exclude statutorily non-arbitrable disputes avoid the spectacle of moving to arbitrate a child sexual assault claim and losing, on the record, in public.

For funders and aggregators. The economics here are the mirror image of a conventional Mass Arbitration campaign. In a mass arbitration the claimants want the arbitral forum because per-case provider fees create defense-side exposure; here the defendants want it, because individual confidential proceedings destroy the aggregation value that centralization created. A funder's model for MDL No. 3166 has to be run twice — once assuming the inventory holds together in federal court, once assuming a defined cohort is peeled off into arbitration — and the difference between those two numbers is the value of the 3 March 2022 line.

Frequently asked questions

Can Roblox force child sexual abuse lawsuits into arbitration?

Not where the claimant elects to invoke the EFAA and the claim arose or accrued on or after 3 March 2022. For conduct entirely before that date, the ordinary Federal Arbitration Act (FAA) analysis applies and the company has generally succeeded on notice and assent, subject to waiver and disaffirmance arguments.

When will the court decide Roblox and Discord's arbitration motions?

No decision date has been set. The omnibus motions are reported for filing on 22 September 2026; opposition and reply briefing, plus any argument, will follow on the schedule Chief Judge Seeborg sets, and a ruling covering more than 160 actions is a matter of months rather than weeks.

What happens to the lawsuits if the arbitration motions are granted?

Granted claims leave the MDL and proceed as individual confidential arbitrations. No class treatment, no Bellwether Trial in that cohort, no public docket, and no precedent generated for the remaining cases — which is the outcome the senators' amicus brief and the parent letters are directed at.

Does the Ninth Circuit's Uhl decision control the MDL?

No. Uhl v. Roblox Corporation is an unpublished memorandum decided on Waiver of Arbitration, on a record in which Roblox litigated a dismissal motion for roughly a year before moving to compel. It is persuasive on waiver and it is a useful account of how a court measures litigation conduct, but the MDL defendants raised arbitration at the outset and are not in the same position.

Is the EFAA limited to workplace sexual harassment?

No. The San Mateo County Superior Court expressly rejected that reading in February 2026, holding that the statute applies to any case relating to a sexual assault dispute and that a claim against an online platform can qualify even where the assault was committed by a third party. The text refers to a case that relates to the dispute, not to an employment relationship.

Why did a court compel arbitration in the Roblox privacy case but not in the abuse cases?

Because the EFAA was not available in the privacy case. In Garcia v. Roblox the complaint pleaded electronic privacy and children's data claims with no sexual assault dispute, so the court decided the motion on ordinary contract grounds — conspicuous notice, low Procedural Unconscionability, a clear and unmistakable Delegation Clause, and parental assent binding the minor — and compelled arbitration. The abuse cases add a statute that the privacy case did not have.