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Grassman's True Grit 1.4

A match engine revamp for Football Manager 2024.

By Updated on Apr 28, 2026   8991 views   26 comments
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Downloads: 824 / Size: 1.3 MB / Added: 2026-04-02
Football Manager 2024 Mods - Grassman's True Grit 1.4
*v. 1.4 Updates:
- Complete re-balance of physical parameters.
- Finishing improved.

*v.1.3 Updates:
- Re-balanced (increased) ball speed to improve finishing.
- Re-balanced GKs (slightly slower reactions and more realistic diving speed).

*v.1.2 Updates:
- Adjusted goalkeepers to more realistically parry shots rather than catching the ball. They are also now more likely to use their feet to save shots. This results in more goal mouth scrambles and a greater variety of goals scored. Like real football, having a goalkeeper with a safe pair of hands is now even more important.

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What is True Grit?

True Grit is a match engine revamp designed to reshape how football is played and experienced in FM24. It is built on the belief that the default engine is unrealistic, overly fast, overly clean, and too easily optimised - producing a style of football that rewards relentless pressing, rapid passing chains, and near-perfect technical execution at a level that feels disconnected from the real game.

This mod slows the match down and reintroduces a sense of friction into every phase of play. Players take longer to react, turn, and execute actions, creating the appearance of more natural hesitation, heavier touches, and a greater sense of physical contest. The result is a game where time and space appear to matter again—where decisions carry weight, and where even simple actions like receiving, passing, or changing direction are no longer trivial.

A central aim of True Grit is to make possession more difficult to maintain. Quick, risk-free recycling of the ball is reduced, and tight passing sequences become harder to sustain under pressure. This naturally leads to more misplaced passes, contested duels, second balls, and transitional moments - mirroring the unpredictability and imperfection of real football. Teams must work harder to control matches, and technical superiority alone is no longer enough to dominate.

Physicality (but not pace) plays a much larger role. Strength, balance, and positioning are more influential in challenges, while defensive actions are given greater presence and impact. Attacking players are less able to glide through situations unopposed, and defenders are better able to disrupt, delay, and compete. The overall effect is a more grounded, hard-fought style of football where outcomes feel earned rather than automated.

The revamp also reduces the dominance of high-intensity pressing systems (or increases the vulnerability of playing in that style). Because actions take longer and players are less artificially responsive, aggressive pressing becomes more situational and less universally effective. Tactical variety improves as a result—different styles become viable, and no single approach consistently overwhelms the match engine.

True Grit does not aim to make the game harder for the sake of difficulty, but to make it more authentic. Matches are less predictable, less sterile, and more reflective of the messy, physical, and often chaotic nature of real-world football. It rewards patience, structure, and adaptability, while punishing over-optimisation and unrealistic play patterns. High defensive lines and aggressive pressing still produce goals, but now at both ends of the pitch. Attacking in this manner now comes at a greater risk.

This is a mod for players who want to feel the struggle in every phase of play - for those who believe football should be contested, imperfect, and, above all, earned. Your players will frustrate you.

Summary of Changes:
- Reduced overall player speed to lessen the reliance on pace for breaking lines and create a more realistic acceleration profile
- Narrowed the gap between minimum and maximum acceleration to reduce the overly “arcadey” feel of vanilla FM24
- Reduced differences in turning rates across jogging, running, and sprinting, improving defenders’ ability to react to attacking movement
- Adjusted ball speed to a more realistic level, limiting rapid “pinball” passing sequences and giving defenders more time to close down space
- Significantly weakened headers - fewer unstoppable bullet headers, more loose balls and second-ball situations from long play. Direct/Long-Ball football is now viable
- Re-balanced timing of defensive “do” and “receive” actions, leading to more tackles, contested phases, and turnovers

I hope this is received by the community in the spirit it was developed. As an earnest attempt to introduce a more challenging, immersive and unpredictable match experience.

INSTALLATION:
Replace simatch folder here C:\Program Files (x86)\Steam\steamapps\common\Football Manager 2024\data.

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Downloads: 824 / Size: 1.3 MB / Added: 2026-04-02
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Discussion: Grassman's True Grit 1.4

26 comments have been posted so far.

  • Grassman's avatar
    @CountVronsky, thanks for the feedback. I tried to reach out to you via the website initially to ask for permission, but received an error message. I'll address the referenced issues in the next version by removing all Match Lab contributions.

    If I might make a suggestion, seeing as you're so free with sharing your own. It's best for everyone if people don't let their egos get in the way of trying to improve or offer alternative experiences for the FM community. I'm not in the business of labelling myself a 'professional' modder, nor do I really think the community cares. They're just looking for different experiences. Obviously, they expect a certain standard of stability, and I'm yet to see a crash with anything I've shared, but if one is reported I will take it down.

    Unfortunately, all the existing mods for FM24 fall short of what I consider to be an accurate depiction of football. I worked on this to reflect what I consider is a better depiction and decided to share with the community. That's really all there is to it. I know you guys decided you couldn't take things further than you did with Match Lab and I respect that, but it could just be we have different measures of success. I don't think a 9th tier semi-pro team should be able to pinball a football round the park like prime Barcelona. This mod addresses that (a little).

    All the best!
    1
  • CountVronsky's avatar
    @grassman, thank you for using our work in your mod. It would be lovely to have a message asking for authorisation since we used our own proprietary tools to mod the match engine besides what you are sharing, but we appreciate the credit given in the post.

    Another thing to consider is that the the changes we made do the AI were made specifically for the changes we made elsewhere. This means using our AI changes into our mod will not lead to the results you expect. To make sure you have a mod that makes sense and all parts work in tandem, you need to adapt the whole file structure to the changes you are making to the physics file and not only changing that file. You also need to do changes outside of the simatch file that will impact what you are doing.

    Edit to add that I just checked you added our files into your work. This means you have two files, with the same name, in the file. This might create conflicts because although the game might open and read the file, this means the game will have to choose which file they apply because the ones you copied from us have different information.

    Edit 2: you are sharing the wrong method of installation. It is a recipe for disaster.

    Good luck
  • michaelandrews's avatar
    Thank you
  • Grassman's avatar
    Just remove the fmf file from the folder and replace with the simatch folder in the download. The replacement file is not in the fmf format.
  • lu66cas's avatar
    @Grassman

    Hi, how are you? I just downloaded the mod, but it's a folder and not an FMF file.
  • Grassman's avatar
    @rattlehead85 thanks for the feedback. It can be an adjustment from the vanilla which allows even the most average lower league teams to be a prime Barcelona. I made this mod primarily to make the game more challenging as vanilla and existing mods are too easy to high line/counter-press with no answer. Do you think the strikers aren't clinical enough?

    @michaelandrews you just put the whole simatch file from the download in the folder after taking out the existing fmf. The new simatch folder replaces the existing fmf.
  • michaelandrews's avatar
    Surely, I am not looking this the right way but I can't find your simatch file. There are four folders, including an event folder with match events xml inside, and several json and jsb files but the simatch file is missing.
  • rattlehead85's avatar
    The forward play needs some work as its not realistic. Aside from that its not a bad engine to be fair.
  • Grassman's avatar
    Take the simatch.fmf file out of the folder (keep it as a backup on your desktop or something) and just put the new simatch file in the folder.
  • michaelandrews's avatar
    @Grassman, would you elaborate more about the installation? I do not have a simatch folder in that location, only a simatch fmf file
  • Grassman's avatar
    I dont own FM26, but I highly doubt this has any effect.
    1
  • arrogance's avatar
    I uploaded the files to FM26 and it didn't give any errors. I wonder if the changes affect the game; have you tried it?
  • Grassman's avatar
    Thanks guys. About to put up the next version. Re-balanced finishing (ball speed) to buff strikers and slightly reduced GK reactions/diving. Unfortunately, there is no way to directly re-balance the attributes or player decision-making (including who they pass to).
  • cristobalite's avatar
    I want to try this out but i want to ask if the ridiculous drive by fulbacks has been resolved where they run to byline and shoot. I can have 3 strikers in the box and these clowns always dont square the ball at all to the center? Did you solve this??
  • michaelandrews's avatar
    Thank you so much for your work! Hopefully, there are always someone like you willing to enhance the fm24 experience. Are you able to replicate in a more realistic way the impact of player attributes on their performance? I think this should be more visible on the pitch, the original engine is far too soft regarding the difference in player performance.
  • Beetator's avatar
    I mean, check Premier league for example. 90% times you should have Haaland being top goal scorer but that's not the case and players barely have like 5 goals in 15 league games. It's just way too low. For me that's the only bad thing in this ME, finishing needs a boost for sure
  • Isospin's avatar
    I generally find this match engine quite entertaining and more challenging than the others. My only remarks are 1) The shooting power. There is never a powerful shot in the game anymore, which is a bit unrealistic 2) Strikers are way more hesitant than they should be. Thank you for your great work.
  • Grassman's avatar
    @Beetator thanks for the valuable feedback. The match engine does not change GKs (other than their likelihood to parry/hold shots), so it's likely that they're slightly OP with the reduced ball speeds. I think the ball speeds are pretty close to realistic though, so in the next version I'll leave them as is and just make changes to the GKs reaction parameters for more balance. Interestingly, I've noticed that placed/curled free-kicks are more prevalent now, given the slightly reduced ball speeds.
  • Beetator's avatar
    I really like this ME, passing, positioning, defending, pressing its 100% much much better. But finishing seems weird (bad?). It's either the shots have no power or keepers are moving way too fast. Most games in portuguese league around 20 shots on target but strikers specially miss so many clear goals because the ball seems to go so slow or like no power?
  • Grassman's avatar
    No changes to dribbling (aside from the pace/acceleration and rate of turn changes referenced above which affect all players in the same way).
  • weblife's avatar
    Thanks for your work. Has the dribbling system been changed? I mean, I love it when a player like Yamal gets past one or two defenders, as his dribbling, technique and acceleration skills are around 20. That’s the only reason I switched to FM26.)
  • Grassman's avatar
    Thanks all for your engagement. I was motivated to develop this because I believed the tools are available to the community to 'fix' this game ourselves. I am not a professional modder and never claimed to be. The FM experience is too easy and I am determined to find a way to break (or reduce) the high pressing/tempo meta and make the game a better and more varied reflection of real life football. This 'project' is an attempt to do that. On this, I will be releasing 1.3 soon. Subject to a little more testing, which involves me playing more FM than is healthy, I think I've made a breakthrough. As mentioned above, "I hope this is received by the community in the spirit it was developed. As an earnest attempt to introduce a more challenging, immersive and unpredictable match experience."
    2
  • Leeds-1919's avatar
    Leeds-19191 month ago
    @countvronsky you said the same about the True Sim 1.4 file, do you have an issue with people trying to improve the ME?

    or maybe you have an alternative to share?
  • CountVronsky's avatar
    It is very easy to make claims but to be a true professional work in modding the match engine, which is way harder than it seems, what kind of testing was made that can support the claims being made?
  • DashingDaz8's avatar
    SUPERB, great to see mods still being made for FM24,still can not get into FM26.
    Great work all involved.
    1

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