Marketplace Index

Data insight

UE5 went from a rounding error to 93.2% of new releases

The marketplace finished moving house.

UE5 vs UE4 in new releases

Share of each month's new releases targeting UE5 vs UE4

as of May 2026
UE5's share of new monthly releases climbed from near zero to 93.2%, even as 46.7% of the version-tagged catalogue is still on UE4.
MythicLemon Marketplace Index ↓ CSV

New supply has decisively committed to Unreal Engine 5. But the back-catalogue tells a slower story: a large body of proven UE4 content is still listed, sitting on a thinner UE5 shelf as studios upgrade.

The fastest products to win are rarely brand-new ideas — they're the UE4 winners with demonstrated demand, rebuilt cleanly for UE5 and documented properly.

About this number

From the MythicLemon Marketplace Index, recomputed for this reporting period. Catalogue coverage is complete through May 2026. Methodology →

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3D Models are 57% of the entire marketplace

A single category — 3d models — accounts for 57.1% of all 79,792 listings.

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Each seller now ships ~60% more — the marketplace's clearest AI fingerprint

Listings per active seller held near 3.4 a year through 2022, then climbed to 5.4 by 2025 — about a 60% lift.

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 Insight

The Unreal asset boom started before ChatGPT, not because of it

The catalogue reached about 79,792 listings, roughly 7.3× its 2020 size — and the steep climb predates the first LLM release.

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