Data insight
Each seller now ships ~60% more — the marketplace's clearest AI fingerprint
Output per seller was flat for years, then bent upward in the generative-AI era.
Listings shipped per active seller, per year
Total listings released in a year divided by the number of sellers who released anything that year
| Year | Listings / active seller |
|---|---|
| 2018 | 3.47 |
| 2019 | 2.8 |
| 2020 | 3.39 |
| 2021 | 3.52 |
| 2022 | 3.58 |
| 2023 | 3.87 |
| 2024 | 4.65 |
| 2025 | 5.37 |
For years the number of packs an active seller shipped annually barely moved. From 2023 it rises sharply — the pattern you'd expect from AI used as a production tool: faster art, faster code, more output from the same studio.
It's the most AI-shaped signal in the data — but not proof. The same window saw the Unreal store consolidate into a larger marketplace, so we report the inflection without claiming a single cause.
About this number
From the MythicLemon Marketplace Index, recomputed for this reporting period. Catalogue coverage is complete through May 2026. Methodology →