Insurgency Sandstorm Updated April 26, 2026

How to Configure Game Rules and Mutators

Tune round timers, friendly fire, respawn rules, and economy settings in Game.ini, and apply mutators to individual map cycle entries for dramatic gameplay changes.

Insurgency Sandstormgame rulesmutatorsGame.inifriendly fire

Game Rules in Game.ini

Most gameplay rule adjustments go in Game.ini under the [/Script/Insurgency.INSGameMode] section:

[/Script/Insurgency.INSGameMode]
MaxPlayers=16
RoundTime=180
WarmupTime=30
RespawnTime=10
FriendlyFireModifier=0.0
CacheKillScore=400
StartingCash=900
bVoteKickEnabled=True

Setting Reference

Setting Type Description
MaxPlayers Integer Player slot limit
RoundTime Integer Seconds per round before time expires
WarmupTime Integer Pre-round warmup duration in seconds
RespawnTime Integer Wave respawn interval in seconds (wave-based modes)
FriendlyFireModifier Float 0.0 = no FF, 0.5 = half damage, 1.0 = full FF
CacheKillScore Integer Points awarded for destroying a weapon cache
StartingCash Integer Starting supply points for each player
bVoteKickEnabled Bool Whether players can vote to kick each other

Adjust RoundTime and RespawnTime based on your map size and player count. Larger maps and fewer players benefit from longer timers.

What Are Mutators?

Mutators are gameplay overhauls that go beyond simple number tweaks. They fundamentally change how the game plays. Unlike the settings above, mutators are not set in Game.ini — they're applied per-map-entry in your MapCycle.txt.

Applying a Mutator

Append ?Mutators=MutatorName to any map cycle entry:

Farmhouse?Scenario=Scenario_Farmhouse_Checkpoint_Security?Lighting=Day?Mutators=HardcoreMode

To stack multiple mutators, separate them with commas:

Farmhouse?Scenario=Scenario_Farmhouse_Checkpoint_Security?Lighting=Day?Mutators=HardcoreMode,FriendlyFire

Common Mutators

Mutator Name What it does
Arcade Enables unlimited respawns (removes wave system)
HardcoreMode No HUD markers, reduced ammo, more lethal — full milsim feel
FriendlyFire Enables team damage (overrides FriendlyFireModifier)
GunGame Each kill advances you to the next weapon in a preset list
HighVelocity All projectiles travel faster and hit harder

Example: Mixed Rotation with Mutators

A rotation that mixes standard and hardcore rounds:

Precinct?Scenario=Scenario_Precinct_Checkpoint_Security?Lighting=Day
Ministry?Scenario=Scenario_Ministry_Checkpoint_Security?Lighting=Night?Mutators=HardcoreMode
Farmhouse?Scenario=Scenario_Farmhouse_Checkpoint_Security?Lighting=Day
Refinery?Scenario=Scenario_Refinery_Push_Security?Lighting=Day?Mutators=HardcoreMode,FriendlyFire

Tips

  • HardcoreMode significantly increases the skill floor — let your community know before enabling it.
  • FriendlyFireModifier=0.5 in Game.ini is a softer alternative to the FriendlyFire mutator if you want to discourage but not punish teamkilling harshly.
  • Economy settings like StartingCash have the most noticeable effect in Push mode, where supply points determine equipment.