⚽ Gameplay Mechanics
1-on-1 Balance (CLEAN_THROUGH):prob: 10 → 5 (-50%)
Impact: Reduces the frequency of "hockey scores" by making clear-cut chances harder to generate.
Possession Error (LOSE_CONTROL):
prob: 10 → 20 (+100%)
Impact: Players are twice as likely to miscontrol the ball under pressure.
Weather Chaos (EVENT_PLAYER_OVERHITS_PASS_WIND):
prob: 10 → 40 (+300%)
Impact: Wind now drastically affects long ball accuracy.
🛡️ Defense & Goalkeepers
Goalkeeper Handling (EVENT_GOALIE_CATCH_BALL):prob: 40 → 60 (+50%)
Impact: Keepers catch the ball significantly more often, reducing cheap rebounds.
Defensive Rigor (NPT_TENDENCY_TO_MAN_MARK):
min_value: <10 → 14 (Floor raised)
Impact: All defenders now have a baseline "tight marking" instruction, preventing passive defending on set pieces.
Interception Fix (GOOD_INTERCEPT):
prob: 0 → 20 (Bugfix)
Impact: Reactivated a dormant interception event that was previously disabled.
🎭 "Dark Arts" & Physicality
Simulation/Diving (EVENT_PLAYER_DONE_FOR_DIVING):prob: 10 → 30 (+200%)
Impact: Players are 3x more likely to attempt a dive in the box.
Professional Fouls (EVENT_SENT_OFF_FOR_PROFESSIONAL_FOUL):
prob: 10 → 25 (+150%)
Impact: Cynical fouls to stop counters are now a viable AI strategy.
Injuries (EVENT_PLAYER_INJURED_FORCED_OFF):
prob: 10 → 15 (+50%)
Impact: Matches take a heavier physical toll.
Referee Strictness:
VAR_CHECK prob: 10 → 20 (+100%)
EVENT_FOUL prob: 10 → 15 (+50%)
🧠 Tactical AI Adjustments
Gegenpress :
NPT_TENDENCY_TO_PRESS_INTENSELY (Min): 15 → 17
Impact: Requires elite physical conditioning to execute effectively.
Tiki-Taka:
WIDTH (Range): 5-9 → 8-12
Impact: Increased spacing to allow for better passing lanes.
Catenaccio:
DEPTH & WIDTH: Locked to 1-5 (Ultra-Low Block)
Route One:
DIRECTNESS & TEMPO: Locked to 15-20 (Maximum Directness)
📥 Installation :
Backup your original simatch.fmf
in SteamLibrary\steamapps\common\Football Manager 26\shared
Replace it with the modded simatch.fmf.
Works with all save





![FM26 Data Tweaks [v1.3 | v2.2]](datas/users/fm-datatweaks_146541.jpg)

Discussion: FM26 Ultimate Realism Mod - v1.0
11 comments have been posted so far.
On a final note, I tried it and it was all the same. The ME didn't change for me. So anyone saying they see a big change is experiencing a placebo effect.
Hope this doesn't sound mean, but quite a few people I know tested it and said the same thing.
The best way I can explain the passing is, it's gone from assisted to manual passing in pro evo soccer.
Injuries have gone through the roof but that might be down to other mods I'm using and the intensity of my training and tactic.
thanks
I haven't tried it yet but will give feedback, I cant wait to see what ball loose control can offer the game, as it will make the moves even more organic than they already are, also the VAR changes u have made, cannot wait to see what making these values even higher will eventually mean for the experience of watching the full matches play out. I do repeated save/load matches to see what changes match by match when the same matchday event is repeated by me constantly, and its fair to say there is zero "canned" goals in FM26, each match even before I try out this mod has been a brilliant watch, ball physics helping with that immensely.
Very VERY underated is FM26 in terms of its brilliant match engine, and this can only enhance things even more.
Keep up the good work hildergarnes !!