Why it ranks here
Special Effect XDR has 2,654 subscribers and ranks #30,203 in Left 4 Dead 2 (#30,245 overall). Over the last 7 days it gained 0 subscribers (-0.3%) and over 30 days 0. Weekly velocity is 0.0 subs/day, accelerating (0.00).
Metrics from 14 stored snapshots. How ModOrNot ranks mods →
Subscriber change since tracked
View change since tracked
Favorite change since tracked
Platform availability
Xbox 360 version, backward compatible on Xbox One/Series X|S. Add-on content is Steam Workshop only; console builds do not run Workshop mods.
Availability is only claimed when an official source proves it. A platform we cannot verify is shown as “Not verified” — we never assume a PC Workshop mod runs on a console.
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Frequently asked
Frequently asked questions
Is Special Effect XDR available on PC?
Yes — Special Effect XDR is available on PC for Left 4 Dead 2. Verified against the official listing.
Is Special Effect XDR available on PlayStation 5?
No — Left 4 Dead 2 itself is not available on PlayStation 5, so neither the game nor its mods can run there.
Is Special Effect XDR available on Xbox Series X|S?
No — Left 4 Dead 2 exists on Xbox Series X|S, but its mod system does not support Special Effect XDR . Xbox 360 version, backward compatible on Xbox One/Series X|S. Add-on content is Steam Workshop only; console builds do not run Workshop mods.
What does the ModSignal Score mean on this page?
It is a 0–100 momentum signal combining 7- and 30-day subscriber velocity and acceleration. Higher means the mod is gaining adoption faster relative to its own baseline — not that it is bigger.
Are these the real Steam Workshop numbers?
Yes. Subscribers, favorites and views are read from the public Steam Workshop page and stored as snapshots; the deltas are computed from those snapshots, never estimated.
How is the rank computed?
Rank is the mod’s position among active mods of the same game, ordered by total subscribers. It is recomputed every collection cycle.