Editorial Policy

What we publish

Two kinds of content: the 12 games, most of which build their rounds automatically from football data, and the articles and guides, which are written for the site.

The games are built from data

• Every quiz round is assembled by code from our player database, from data packs we build ahead of time, or from lists we wrote ourselves, such as Trophy Hunt's. Nobody reviews individual questions before they are served.
• The answer comes from the same data as the question, so a round is exactly as accurate as the records behind it, and fixing one record fixes it everywhere it is used.
• No AI model writes questions while you play. AI is used in two narrow places, described on Behind Our Questions: a check on popularity rankings in Rank It, and the fictional incident cards of The VAR, written ahead of time.

Where the facts come from

• Player and club records: Transfermarkt data for most of our 9,318 players, and Wikidata, the free knowledge base, for about 1,400 more, across 1,037 clubs, with identities, nationalities, positions and career histories, and contracts and market values for some players.
• Market values: Transfermarkt's estimates. ValueGuessr uses a snapshot of 3,129 players (2,644 in the big five leagues, 485 in the Saudi Pro League) from the 2025/26 squads, updated with the transfers announced by mid-July 2026, and the values Transfermarkt had published by June 2026, most of them in late May and early June 2026.
• Teammate links: TransferChain links players who were in the same Premier League, La Liga, Serie A, Bundesliga or Ligue 1 squad in 2018–19, 2019–20, 2020–21, 2021–22 or 2025–26.
• Careers: Career Path reads each player's senior career from the career box (infobox) of his English Wikipedia article, with a script, when we build the game. Each club's crest comes from its Wikipedia page and is stored on our own server. How well known a player is, which sets the difficulty, comes from how often his Wikipedia articles are read and in how many languages he has one.
• Lists we wrote ourselves: Trophy Hunt's lists of past winners, captains, managers and referees, the fame scales for clubs and stadiums in Stay Quiet, and the pedigree tiers for clubs and nations in Tier List.
• Popularity: some modes rank players by popularity. It is our own estimate, built from several signals, such as how many Wikipedia language editions have an article about the player, the clubs they have played for and, for the few where we have one, their market value. It does not measure fans or followers.

Articles and guides

• They are written by the Goalasso team and signed as such.
• Facts are checked against published sources before publication. Figures we took from our own database are presented as ours.
• We use AI tools to help draft and fact-check them; we decide what is published.
• Each one shows when it was published, and when it was last updated if it has changed since.

Known limits

• Career histories are most complete for recent seasons and thinner for older careers, and youth or reserve spells are sometimes mixed in with first-team ones.
• Market values are snapshots and go out of date between updates. We update the data periodically, not continuously.
• Some records are wrong, such as a player listed in the wrong position, and some birth dates are placeholders. Like any large dataset, ours has mistakes we haven't found yet.

Reporting a mistake

If you spot a wrong answer, an error in an article or anything else that looks off, tell us through the contact page or at info@goalasso.io. Say which game or page, and what you think is wrong. Messages go straight to the team.

When we confirm a mistake in the data, we correct the record, which fixes it in every mode that uses it. When we correct an article, its update date changes.