The si10patch.exe file you have requested: Mods / Science and Industry / Patches / Science and Industry V0.97 - V1.0 Patch - 17.93mb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:

This patch will upgrade your Science and Industry V0.97 to the latest V1.0

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