Steam, Epic and Store Fees: What Headline Rates Leave Out

A tax-inclusive checkout receipt is not the revenue base used to calculate a publisher’s payment. On Steam, applicable taxes, refunds and chargebacks are removed before the contractual share is applied. Epic lists additional deductions, including payment-processing costs and optional Support-A-Creator payments. That accounting distinction changes the comparison before hosting, discovery or online services enter the analysis.

Rate reference: October 2026. Epic’s annual first-$1-million exemption began in June 2025; the distribution agreement referenced below carries a March 28, 2026 update date. Console and mobile comparisons require separate treatment because platform, programme, billing route and territory can change the applicable commercial terms.

Store commissions side by side

The table separates published numerical schedules from channels whose economics depend on programme or distribution agreements. A headline percentage describes the store’s share, not the publisher’s final margin or a guaranteed level of promotion.

Distribution channel	Platform share	Threshold or qualification	Services and comparison boundary
Steam	30% initially; 25% and 20% on higher revenue bands	Product thresholds of $10 million and $50 million in adjusted gross revenue; higher developer shares apply only above each threshold.	Store distribution, payments, refunds, regional pricing and tax handling, plus Steamworks features. No fixed visibility entitlement.
Epic Games Store	0% on the qualifying first $1 million annually per product; 12% thereafter	The exemption applies to Epic-processed payments and resets annually. Contractual deductions still affect proceeds.	Distribution access, self-service publishing and integrated analytics. Certain in-game purchases can use developer-controlled payments.
Microsoft Store on PC	12%	The PC store rate is separate from Xbox console economics.	PC distribution; the rate does not establish Xbox console terms.
PlayStation and Xbox console stores	Approximately 30% as a headline benchmark	Product-specific agreements determine applicable deductions and commercial terms.	Proprietary console distribution and platform access. Store commission does not establish the full multiplayer-service package.
Nintendo eShop	Agreement-specific; no numerical rate assigned in this comparison	The publisher’s Nintendo distribution terms determine the applicable schedule.	Console access, publication requirements and services remain distinct commercial questions.
Apple App Store	Programme-, billing- and territory-dependent; no universal rate assigned here	A game’s applicable programme and payment route define the relevant fee treatment.	App distribution and digital-purchase rules cannot be reduced to a single global game commission.
Google Play	15% or less for more than 99% of developers subject to a service fee, according to Google	Eligibility and programme rules determine treatment; the statement is not a universal rate for every transaction.	The cited fee framework covers paid apps and in-app digital content or services.

Steam’s payment mechanics are described in its tax and payment documentation. Epic’s distribution offer and distribution agreement distinguish the advertised split from the deductions used to calculate payment. Google’s service-fee documentation describes eligibility across different developer situations rather than one universal mobile rate.

1. Transaction scope: from checkout receipts to publisher cash

The first analytical boundary is the transaction itself: a paid game, downloadable content and an in-game purchase can follow different payment arrangements. Epic’s permission to use developer or third-party payments for certain in-game purchases does not make every Epic Games Store transaction commission-free. Google’s digital-purchase fee framework likewise does not describe physical goods.

Steam calculates payments from “Net Revenues,” meaning gross revenue less applicable adjustments. Gross receipts can contain VAT or sales tax that is subsequently removed. Steam’s 30% base share therefore does not necessarily equal 30% of the tax-inclusive amount charged to the customer.

Epic’s agreement calculates the developer’s share after sales tax and listed deductions, including optional Support-A-Creator payments, payment-processing fees, chargebacks, refunds, discounts and fraud-related charges. Consequently, an 88% developer share is not necessarily 88% of checkout receipts. The 12% versus 30% comparison remains commercially meaningful, but it is not a complete measure of the difference in realized proceeds.

Withholding creates another layer. Steam’s tax documentation gives a possible 30% US IRS withholding rate, depending on tax status and treaty documentation. That withholding is separate from Valve’s commission: it is a tax deduction from payment, not an additional store fee applied on an identical basis. Publisher participation, engine royalties and game operating costs can further separate store proceeds from studio cash.

2. Threshold mechanics: Steam’s bands versus Epic’s annual allowance

Steam revenue share tiers are marginal. The developer or publisher receives 70% at the initial tier, 75% on the qualifying portion above $10 million and 80% on the qualifying portion above $50 million. Crossing a threshold does not reprice earlier revenue. A product reaching the highest tier therefore does not receive 80% across its entire historical revenue base.

The threshold definition also matters. Steam’s stated thresholds refer to adjusted gross revenue, while payments use the agreement’s net-revenue calculation. A checkout-sales dashboard, a threshold-qualification ledger and a payment statement are not interchangeable measures.

Epic’s model uses a different clock. Since June 2025, developers receive 100% of the qualifying first $1 million in annual revenue per product, followed by the standard 88% developer share. This is neither a permanent zero-commission allowance nor a publisher-wide catalogue exemption. The annual period and product boundary are essential parts of the calculation.

The revealing distinction is the shape of the fee schedule. Steam reduces its share on higher product-revenue bands; Epic removes its commission from a qualifying annual opening band. A portfolio analysis that treats both as generic “volume discounts” loses the product and period boundaries that determine the actual result.

3. Service scope: what the commission supplies — and what remains separate

Steam combines storefront distribution with payment collection, refunds, regional pricing and tax handling. Its developer ecosystem also includes reviews, wishlists, achievements, cloud saves, user-generated content, Workshop support and Steamworks integration. These features form a bundled distribution environment; they do not carry a single published itemized value that can be subtracted from the commission to derive a universal “distribution-only” price.

Epic supplies self-service publishing and integrated analytics alongside store access. Epic Online Services is a separate, free cross-platform multiplayer framework. Store commission and backend-service architecture are therefore different analytical categories, even when the same company supplies both.

Engine licensing can also alter the comparison. Epic’s original December 2018 store policy absorbed Unreal Engine’s 5% royalty for Epic Games Store sales from Epic’s share. That store-specific policy does not automatically remove Unreal royalties from Steam, console or mobile sales.

Developer-controlled payments change the allocation of responsibilities rather than eliminating transaction costs. Epic permits developers to retain 100% of certain in-game purchases before external payment costs and other applicable deductions. Processing, fraud handling, refunds, tax compliance and customer support remain part of the operating model.

As a general observation, console distribution combines proprietary store access with platform accounts, delivery, updates and technical approval requirements. That does not establish that every commission includes all matchmaking, voice, identity, hosting or game-server costs. Certification access and a complete online-service stack are different deliverables.

4. Discovery economics: access is not guaranteed demand

Steam and Epic do not exchange their standard commission for a universal quota of impressions, featuring slots, wishlists or sales. Store access creates eligibility for discovery; recommendation systems, merchandising and product demand determine exposure and conversion.

Valve plans to personalize the games shown in Steam’s sales and events areas. The relevant measurement boundary separates exposure from commercial outcomes: additional store-page visits, wishlists and cart additions do not by themselves establish higher net receipts or a broader distribution of revenue among games. The eventual effect on mid-tier and older titles remains a distinct outcome from the placement mechanism.

Audience scale also requires a defined denominator. Epic advertises more than 230 million users without identifying that figure as registered accounts, monthly active users or another activity measure. It cannot serve as a monthly active user benchmark or a count of reachable paying customers. Similarly, concurrent users measure simultaneous activity, not storefront conversion.

A useful discovery analysis separates impressions, store-page visits, purchase conversion and refund-adjusted receipts. A lower commission can coexist with lower sales volume; a larger audience can coexist with weaker exposure for a particular title. Neither relationship follows from the fee schedule alone.

5. Platform risk: interoperability, compliance and market access

Steamworks interoperability requires feature-level analysis. Steam Datagram Relay can route network traffic on other platforms and stores when the game is also available on Steam. It is not a universal friends or chat system. Network transport, authentication, matchmaking and social communication therefore represent separate dependencies, not one binary measure of whether a game supports cross-platform play.

Epic Online Services provides a competing cross-platform framework, and some implementations require an Epic Games account during online play or first launch. Account requirements, feature coverage and player friction remain relevant even when the service itself carries no developer fee. The chosen combination of services and game implementation determines the resulting player experience.

Steam’s mandatory AI-disclosure requirement adds a separate content-policy dimension. Valve frames the requirement around legal uncertainty and its understanding of AI-related risks. Its existence does not establish a particular compliance cost or predict a change in developer behaviour; the operational question is which disclosures and publication conditions apply to the submitted game.

Mobile distribution adds jurisdiction and billing-route dependencies. Epic’s developer-controlled payment arrangements do not establish equivalent permissions on Apple’s or Google’s storefronts. Regional distribution eligibility, payment permissions and the applicable programme determine whether a particular route is available before its economics can be compared.

As a general observation, console publication requires platform-holder technical and compliance approval. Commission rates alone provide no certification timetable, rejection criteria or assurance of release readiness. These access constraints belong alongside the commercial schedule, not inside an assumed value for the store cut.

Operational checklist: evidence that makes the comparison usable

• Payment reconciliation: The channel record distinguishes tax-inclusive receipts, contractual adjustments, the share-bearing revenue base, store commission and withholding. A residual studio payment is not treated as a measure of store commission alone.
• Threshold exposure: Steam’s product-level revenue bands and Epic’s annual per-product allowance remain separate calculations. The key failure modes are retroactive tiering, catalogue-wide aggregation and treating Epic’s exemption as permanent.
• Discovery signals: Store-page traffic, wishlists and cart additions remain leading indicators; purchase conversion, refunds and net receipts describe commercial outcomes. A platform audience total without an activity definition does not supply an active-customer denominator.
• Service and access dependencies: Store distribution, payment processing, engine royalties, multiplayer infrastructure, account requirements, certification and regional billing permissions occupy separate lines. Bundled features and lower headline fees do not establish equivalent operational coverage.