User Score
8.1

Generally favorable reviews- based on 68 Ratings

User score distribution:
  1. Positive: 49 out of 68
  2. Negative: 8 out of 68

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  1. Jan 28, 2022
    0
    Unoptimized mess!
    Croteam FIX YOUR ENGINE.

    Since Alen departure, Croteam games are unoptimized and abandonned.
  2. Apr 7, 2022
    2
    Поиграл в SS 4 только в россие, вау
    А так то ещё хуже, ибо движок не оптимизирован, что за прогрузки в любой катсцене? это 2022??
  3. Sep 3, 2023
    3
    Кал говна без оптимизации , графона и нормального баланса
  4. Aug 13, 2023
    2
    level designs were not as good as the serious Sam 4. I couldn't even see the end. maybe I will try to give a second chance in the future but I dont think so
Metascore
70

Mixed or average reviews - based on 25 Critic Reviews

Critic score distribution:
  1. Positive: 7 out of 25
  2. Negative: 0 out of 25
  1. Apr 7, 2022
    83
    Serious Sam Siberian Mayhem won’t scratch the itch for something new, but if you’re craving a fix of some chaotic FPS goodness, it certainly hits the spot without overstaying its welcome.
  2. Feb 16, 2022
    70
    Serious Sam: Siberian Mayhem is a DLC that brings an opportunity for new players to get into this franchise, giving them a balanced, fun, and simple video game, that embraces a diversity of tools for the player to discover its full-of-action world.
  3. Feb 16, 2022
    70
    More of the traditional Serious Sam gameplay that gets to the point faster than the main game, whereas it still runs poorly.