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Map pack

Black Mesa

19x25 "Ah Gordon. It's good to see you." -Walter Benett

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Open Annihilation on GitHub Modding Info play.coreprime.net coreprime.net

Total Annihilation, The Core Contingency, Battle Tactics, Total Annihilation: Kingdoms and Boneyards are trademarks of their respective owners. Open Annihilation is an independent project and is not affiliated with, endorsed by or sponsored by those owners, Cavedog Entertainment or its successors. No game data is distributed with Open Annihilation. Mods, maps and other packages are the work of their authors and are listed as they released them.

Open Annihilation is copyright 2026 Steve Gray and contributors, released under the GNU General Public License version 3.

Core Contingency HD Pack