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    Reversing Factorio's RNG

    The author reverse‑engineers Factorio’s RNG, confirms it’s the Boost taus88 generator (a 3‑LFSR XOR combo), proves equivalence with the game’s compiled code via decompilation and symbolic Python checks, and explains how the weak LFSR structure lets you predict future “random” quality outcomes.

    Hacker News front pagegithub.io61 minHN25248lobste.rs26