Select to automatically import and compare new games with your existing database. Comparison: Mega vs. Big Database Mega Database 2026 Big Database 2025/2026 Total Games Over 11.7 million ~11 million Annotations ~113,000+ annotated games No annotations Updates Weekly updates included No automatic weekly updates Player Info High-quality player lexicon & photos Basic player data Free Alternatives
(introduced with ChessBase 17), which offers faster searching and removes previous data limits on player and tournament names. Professional Applications chessbase mega database download
| Requirement | Minimum | Recommended | |-------------|---------|--------------| | | Windows 10 (64-bit) | Windows 11 (64-bit) | | RAM | 4 GB | 16 GB (for fast searching) | | Storage | 15 GB free (database only) | 25 GB (with updates and indices) | | Internet | Required for download & updates | Broadband (100+ Mbps) | | Software | ChessBase Reader (free) or ChessBase 15+ | ChessBase 17 | | Processor | Dual-core 2 GHz | Quad-core 3 GHz+ | Select to automatically import and compare new games
The download is not a single .cbh file – it’s a named something like: MegaDatabase2025_Setup.exe (approx. 11.5 GB) chessbase mega database download
: Once downloaded, you will typically need to enter the activation key provided during purchase to unlock the full database Key Features of the Mega Database Annotated Games : Unlike the Big Database