Furthermore, the inclusion of "AlphaZero" style games and high-level computer chess championships is starting to fill the database. We are moving away from just human games into a hybrid database of human + AI perfection.
: If you are looking for free options, you can use open-source software like SCID (Shane's Chess Information Database) and populate them with free PGN files from sites like The Week in Chess Online Databases : Sites like ChessTempo offer massive, searchable online databases for free. Chess News | ChessBase Key Data Points (as of 2026) ChessBase Mega Database 2026 Total Games 11.7 million+ Date Range 1475 – 2025 Annotated Games Weekly (~5,000 games/week) your own games? ChessBase Mega Database 2026 - New In Chess chess mega database