Top 10 best sites where you can download chess games in PGN format

 Here is a listing of some of the best sites where you can download chess games in PGN format, ranked by quality and features:

1. PGN Mentor
   Known for its extensive collection of over a million Grandmaster games, PGN Mentor offers powerful tools for searching, analyzing, and organizing PGN files. It has been a trusted source since 1998 and includes a large ECO opening book database with more than 13,400 lines. You can access a free demo or purchase the full version for enhanced features.Visit PGN Mentor​(PGN Mentor)​(PGN Mentor)

2. Chessabc Base
   A free database updated regularly, Chessabc Base includes major collections like MillionBase and KingBase. This site offers over 5 million chess games, providing a great resource for both historical and modern games.Visit Chessabc Base​(ChessABC)

3. The Week in Chess
   This site provides weekly updates of top-level chess tournaments in PGN format. It is highly regarded for offering recent games from elite events such as the Sinquefield Cup, London Chess Classic, and FIDE Grand Swiss.Visit The Week in Chess​(The Week in Chess)

4. Chessentials
   Focused on providing well-analyzed games, Chessentials offers free downloads of top games from chess champions like Capablanca, Botvinnik, and Alekhine. Their focus on analysis makes it a unique resource for those who want to study master-level play.Visit Chessentials​(Chessentials)

5. Lichess Open Database
   Lichess offers a massive open database of games played on its platform. With millions of games available in PGN format, it's a great place to find games of various formats, including bullet, blitz, and classical.Visit Lichess Database

6. ChessBase Downloads
   ChessBase offers a variety of games in PGN format. It's a reliable platform for high-quality tournament games, particularly for users with a ChessBase account.Visit ChessBase

7. KingBase (via Archive.org)
   A free and comprehensive database that offers over 2 million chess games played since 1990 by players with an Elo rating over 2000. Monthly updates ensure the data stays current.
   Visit KingBase

8. PGN Chess Editor
   This online tool allows users to browse through thousands of games and save them in PGN format. It's an excellent option for those looking to analyze specific positions or player stats.
   Visit PGN Chess Editor

9. Chess.com
   One of the largest chess communities, Chess.com allows users to download their own games in PGN format, with features for analyzing positions and game statistics.
   Visit Chess.com

10. Tornelo
    Tornelo is a lesser-known but functional platform for downloading games from tournaments. Users can download PGN files with or without clock data.
    Visit Tornelo​(PGN Mentor)​(ChessABC)

These resources provide an array of chess games from amateur to Grandmaster level, with some focusing on analysis and others on sheer volume of available games.