Ordered by installs · Not tested by us
The 20 most-installed Source Filmmaker mods (2026)
Ordered by Steam Workshop subscriptions, which is a count from Valve rather than a judgement from us. We have not installed these, and say so rather than implying a verdict we have not earned. Everything here installs by clicking Subscribe.
The short version
- Most installed: Lost Forest Map, 102,691 subscribers.
- 0 of 20 updated since the start of 2025, which matters more than subscriber count for whether a mod still works.
- All install through Steam. Subscribe on Workshop and the game picks it up on next launch. Nothing to unzip.
All 20, most installed first
SFMTeam FortressMapUpdated 21 September 2015
SFMTeam FortressMapUpdated 21 August 2014
SFMMapUpdated 14 February 2015
SFMOriginal IPMapUpdated 15 February 2018
SFMOriginal IPModelCharacterUpdated 4 January 2015
SFMOriginal IPModelCharacterUpdated 28 August 2018
SFMOriginal IPModelIndoorUpdated 1 March 2018
SFMMapUpdated 26 June 2016
SFMOriginal IPScriptUpdated 5 September 2014
SFMOriginal IPMapUpdated 4 April 2019
SFMOriginal IPModelCharacterUpdated 15 February 2018
SFMOriginal IPModelCharacterUpdated 1 March 2018
SFMOriginal IPModelCharacterUpdated 1 February 2015
SFMOriginal IPMapUpdated 19 November 2014
SFMMapUpdated 6 June 2015
SFMModelUpdated 1 January 2014
SFMModelCharacterUpdated 26 February 2017
SFMTeam FortressModelCharacterUpdated 14 June 2014
SFMTeam FortressModelCharacterScoutUpdated 23 January 2014
SFMOriginal IPMapUpdated 16 April 2016
Subscriber counts and approval scores are Valve's, read on 5 September 2026 and not adjusted by us. Browse the full Workshop.
Common questions
What is the best Source Filmmaker mod?
By installs, Lost Forest Map, with 102,691 Steam Workshop subscribers. That is the most-installed rather than the best: subscriber count measures how many people tried it, not whether they kept it. Workshop's own approval score is shown next to each one where Valve publishes it.
How do I install Source Filmmaker mods?
Everything on this page is a Steam Workshop item, so installing means clicking Subscribe on its Workshop page and letting Steam download it the next time you launch the game. There is nothing to unzip and no files to move. Unsubscribing removes it. Mods from outside Workshop work differently and are not covered here.
Are these Source Filmmaker mods safe?
They are hosted by Valve and distributed through Steam, which is a meaningfully lower risk than downloading files from elsewhere, but Valve does not audit mod code. We have not run any of them. Treat a mod with a large subscriber count and a recent update as better evidence than one with neither.
How is this list ordered?
By Steam Workshop subscriptions, highest first, read on 5 September 2026. That is a count from Valve, not a judgement from us. We have not ranked these by quality and do not have the basis to: nobody here has installed all 20.
Do you get paid for these?
No. Mod authors are not paid by us and cannot pay for a position here. The order is Valve’s subscriber count and nothing else.