You can download the individual packs you want from Steam or grab the entire collection in a single pack as a direct download and manually pick the files you need.
Updated: 14 January 2021 - Update 01
Nik33 Data Packs - What's IncludedNik33's Agents pack
Adds more than 1.000 real life agents and their connections to 13.000+ players/clients, including every relevant relationship status as well.
The Agents pack is being published and worked for 11 years and it's being updated often through the season.
Nik33's Career Plans pack
Adds career plans to players/staff taking into account their real life choices, interviews and social media posts.
Nik33's Competition Abbreviations pack
Updates 150+ competition abbreviations to match their licensed names.
Nik33's Competition Colours pack
Official competition colours for UEFA comps and Copa Libertadores.
Nik33's Real Club Names & Nicknames pack
Adds nicknames for many teams and nations. Updated with correct Brazilian, Spanish, Chinese, Portuguese, French, Italian and other full/short names - without losing the nicknames like when using .lnc files!
Nik33's Player Partnerships pack
Adds/updates player partnerships, a new feature that can add great real life partnerships like Kane/Son, Lukaku/Martinez etc. Updated as season goes.
Nik33's Relationships pack
Adds more than 110 new relationships depending on player interviews, social media posts and other incidents. Also adds players' idols.
Nik33's Extended Injuries System v6
The first of its kind goes to its 6th edition. Created from scratch for FM21 - Updates current injuries and adds 70 more to a total of 202 types for more diversity and realism, while slightly lowering some severe injuries odds.
Nik33's World Media pack
About 250 new media sources of every kind from all around the world.
Nik33's Reputations pack
Updates reputations for Clubs, Nations, Competitions (player reps are updated in the Ability & Personalities pack) & adjusts nations' youth ratings.
Nik33's Abilities & Personalities
Updates player/staff attributes based on their real life season form and after extensive comparison between all top leagues' players.
Fills many empty attributes and also deals with attribute anomalies.
Nik33's Club Colours pack
Changes club titlebar colours to their correct ones based on their logos and football tradition.
Nik33's Generic Changes pack
Fixes player/staff info (DOBs, POBs, nicknames, histories, heights, weights etc), national team status, season stats, pref. squad numbers, language knowledge etc....
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CreditsThanks to Diego1960 for his steady info support.
Original topic in Greek