Total subscriptions tell you what players have already committed to. But the sharper question for a studio or creator is: what is growing right now? A mod that is adding tens of thousands of installs a week is a live demand signal — it tells you where a community is heading before the totals catch up.
Using ModSignal's live dataset of 4.2 million active mods across 80 tracked games, we ranked Workshop items by new subscriptions over the trailing 7 days. The result is unambiguous: Project Zomboid's Build 42 update wave is the single biggest growth story in the Steam Workshop right now.
The fastest-growing Steam Workshop mods this week
These are the mods adding the most new subscriptions in the last 7 days, ranked by raw install growth:
| Mod | Game | Creator | New subs (7d) | Total subs |
|---|---|---|---|---|
| NeatUI Framework [B42] | Project Zomboid | NeatUI creator | 22,289 | 981,482 |
| Mod Update and Alert System | Project Zomboid | Chuckleberry Finn | 14,570 | 1,432,756 |
| that DAMN Library | Project Zomboid | KI5 | 13,770 | 2,850,830 |
| Trailers! | Project Zomboid | KI5 | 10,939 | 1,436,133 |
| Aim Botz - Aim Training (CS2) | Counter-Strike 2 | Mr. uLLeticaL™-S | 10,053 | 13,259,857 |
| errorMagnifier | Project Zomboid | Chuckleberry Finn | 9,756 | 2,452,079 |
| Proximity Inventory B42.20+ | Project Zomboid | Mxswat FRV Enthusiast | 9,682 | 2,003,526 |
| '87 Ford B700/F700 Trucks | Project Zomboid | KI5 | 9,007 | 1,176,424 |
| '82 Porsche 911 | Project Zomboid | KI5 | 8,448 | 992,709 |
| Clean Hot Bar [B42] | Project Zomboid | NeatUI creator | 7,982 | 864,811 |
Project Zomboid owns the growth chart
Eight of the top ten fastest-growing mods are Project Zomboid items. This is not a coincidence — it is the direct effect of the game's Build 42 update cycle. When a major patch lands, players return, rebuild their mod lists, and reinstall the utilities that make the new build playable. The mods that win are the ones that update fastest to the new build and solve the friction the patch introduces.
Notice what is growing: UI frameworks, error tools, and vehicle packs — not new content. NeatUI Framework is a UI overhaul. errorMagnifier surfaces hidden game errors. The KI5 vehicle mods ('87 Ford, '82 Porsche) are quality-of-life additions to the driving system. This is the same pattern we saw in the all-time subscription leaderboard: the tools players need to keep playing grow faster than the content they play once.
The creators compounding through the update wave
Growth is concentrated in a handful of creators who move fast when a build drops:
- KI5 — 62 Project Zomboid mods adding 280,791 new subscriptions in 7 days. The single biggest growth engine in the Workshop right now, driven by a relentless stream of vehicle packs.
- Chuckleberry Finn — 4 mods adding 27,174 subs in 7 days. Mod Update and Alert System and errorMagnifier are both essential B42 utilities.
- The NeatUI creator — 6 mods adding 52,618 subs in 7 days, led by NeatUI Framework and Clean Hot Bar.
- Mr. uLLeticaL™-S — the only non-Zomboid name in the top ten, with Aim Botz still adding 10,053 subs a week in Counter-Strike 2.
The lesson for creators is direct: when a game ships a major build, the creators who update their existing tools first capture the entire returning-player wave. KI5's 62 mods are not new — they are maintained, and that maintenance is what compounds into 280,000 weekly installs.
What this means for studios
For a studio, the growth chart is a leading indicator, not a lagging one:
- Update cycles are demand events. A major patch is when your community re-engages with mods. If you ship official versions of the most-needed utilities (UI, error handling, inventory) at the same time, you capture demand that currently flows to third-party creators.
- Maintenance is the moat. The fastest-growing creators are not launching new ideas — they are keeping existing tools current. A creator who updates on day one of a build is worth more than one who launches a new mod a month later.
- Watch the wave, not the total. A mod with 2.8 million subs that is flat is less interesting than one with 900,000 subs growing 2.4% a week. Growth velocity is the signal that predicts where the next breakout comes from.
How we measure
All figures come from the ModSignal live dataset, which tracks games, mods, creators, and subscription movement on the Steam Workshop. "New subs (7d)" reflects the change in active subscriptions over the trailing 7 days for each mod. Because players subscribe and unsubscribe continuously, the ranking is a live snapshot and updates as the Workshop graph refreshes.
Why this matters
The fastest-growing mods are the clearest public record of where player demand is heading. For studios deciding what to build, and for creators deciding what to update next, the growth chart is the demand graph in motion.
Explore the live dataset to see how these numbers move, or dive into Project Zomboid directly.