Serious Sam: Siberian Mayhem Review Summary

Last updated: 2026-10-15
Review summary
  • Better than Serious Sam 4
  • New weapons and enemies
  • Excellent weapon arsenal
  • Poor performance and optimization
  • Game length too short
  • Feels like DLC
Serious Sam: Siberian Mayhem header

Categories

First-Person ShooterHorde ShooterCooperative MultiplayerWeapon CustomizationSerious Sam SeriesStandalone ExpansionRussian SettingVehicle Combat

Emotions

Archetypes

Hardware

Windows <8GB VRAMnegativeWindows 12-15GB VRAMpositive

Timed cohorts

Switch between playtime slices of churn risk.

Refund churn

Risk snapshot

Fast read on churn risk and the loudest complaints.

78.1% PrecisionNov 10, 2025 → Sep 26, 2026
Total revenue at risk
$28,606

~$2,681 per month

Modeled from refund-intent reviews

Most dangerous issue
Repetitive Unbalanced Level Design

Design · 12.2% of risk

Churn driver breakdown

Weighted by churn risk

$28,606
Technical
Design
53.3%$15,259
46.7%$13,347
Issue map

Complaint treemap

Normalized churn drivers sized by volume; click to inspect a cluster.

Issue treemap
Technical · 50.0% share
Design · 50.0% share
Issue · Technical
Crashes With High-End GPU
Share of issues
10.0%
Primary region
Russia
Detected from language cues
Anger level
Furious
Average sentiment intensity