Server Configuration

Server Configuration

Reference for the Q3Rally-specific server cvars. Put them in your server config or set them in the console. For general server setup, see Dedicated Server.

Times are given in the unit the cvar expects. Pay attention to seconds vs. milliseconds.

General

Cvar	Default	Description
g_gametype	0	Game mode, see Game Modes
laplimit	5	Number of laps. 0 uses the map's own lap count. Sprint maps always run 1 lap.
timelimit	0	Time limit in minutes (0 = none)
fraglimit	—	Frag limit for DM modes
capturelimit	8	Capture limit for CTF modes, goal limit in Autoball 🧪
g_useFuel	1	0 turns fuel consumption off

Racing

Cvar	Default	Description
g_trackLength	0	Track variant: 0 short, 1 medium, 2 long. Falls back to the next length the map supports. Latched.
g_trackReversed	0	1 races the track in reverse, if the map is reversible. Latched.
g_rallyReadyCheck	1	Wait until all human players are ready before the countdown
g_rallyIgnoreBots	0	1 moves bots to spectator and leaves them out of the ready check
g_forceEngineStart	60	Seconds until the race starts anyway (with a 10 s warning)
g_finishRaceDelay	30	Seconds the race keeps running after the first driver finishes
g_timeTrialLaps	3	Laps in Single Player time trial
g_timeTrialFinishDelay	10	Finish delay in Single Player, in seconds
g_rallyIntroCamClients	1	🧪 1 also shows the pre-race intro camera to drivers on the grid, not only to spectators. Drivers can skip it with Fire.
g_eliminationWeapons	0	1 enables weapons in Elimination

Demolition Derby

Cvar	Default	Description
g_derbyMinPlayers	2	Real players needed before a Derby or Last Car Standing round starts. Until then the server shows "Waiting for players…".
g_derbyNoRamTime 🧪	45	Seconds a car may go without ramming an opponent. At 10 s the driver gets a warning, at 0 the car explodes. 0 turns the rule off.
g_derbyHitFuelReward 🧪	2.0	Fuel refilled per ram, as a percentage of the tank
g_derbyHitNosReward 🧪	500	Extra turbo time per ram, in ms (only while turbo is active)
g_derbyDamageFactor	15.0	Collision damage multiplier in Derby
g_damageScale	0.3	Global damage multiplier. Also applied to Derby collisions unless g_derbyIgnoreDamageScale 1.
g_derbyIgnoreDamageScale	0	1 ignores g_damageScale for Derby collisions
g_derbyCollisionFrontWeight	1.0	Weighting of front hits (0–2)
g_derbyCollisionSideWeight	0.65	Weighting of side hits (0–2)
g_derbyCollisionRearWeight	0.35	Weighting of rear hits (0–2)
g_carImpactTransfer	1.0	Scales the car-to-car impulse, which also changes the damage (max 1)
g_carImpactElasticity	0.25	Bounciness of car-to-car collisions (0–1)
g_derbyCollisionLog	0	1 logs every car contact with its impulse and damage, useful for tuning

Domination

Cvar	Default	Description
g_dominationScoreInterval	10000	Scoring interval for held points, in ms
g_dominationCaptureDelay	1500	Time to capture a point, in ms
g_dominationSpawnStyle	0	Spawn point selection strategy

King of the Hill

Cvar	Default	Description
g_kothScoreWin	100	Score that wins the match
g_kothCaptureTime	3000	Time to capture the hill, in ms
g_kothRespawnWave	5000	Respawn wave interval, in ms
g_kothPtsTick	1	Points per second of uncontested ownership
g_kothPtsCapture	5	Bonus for capturing the hill
g_kothPtsDefend	3	Bonus for regaining uncontested control after an enemy contest
g_kothOvertime	1	Overtime when the match ends in a tie
g_kothOvertimeHoldTime	10000	Uncontested hold time needed to win overtime, in ms

Autoball 🧪

Development build. See Autoball. Needs g_scriptedObjectBullet 1 (the default). A ready-made config is q3r_autoball.cfg.

Match

Cvar	Default	Description
g_autoballKickoffDelay	3	Seconds the cars are frozen at kick-off (0–10)
g_autoballGoalDelay	4	Seconds from a goal to the next kick-off (1–15)
g_autoballStartTurbo	5000	Stored turbo after every spawn, in ms
g_autoballDemoSpeed	110	km/h a turbo-burning car needs for a demolition
g_autoballIntro	1	The first kick-off of a match waits 4 s longer for a camera flight over the arena (and for players still loading the map, up to 15 s)
g_autoballGoalPush	2200	Strength of the goal explosion that pushes cars away
g_autoballWeapons	0	1 keeps weapons and weapon pickups. Latched.

Ball physics (changes apply immediately)

Cvar	Default	Description
g_autoballImpactScale	1.6	How hard car hits launch the ball (0–2)
g_autoballVerticalScale	0.45	Flattens shots: 1 = full upward share of the contact, lower = flatter (0–1)
g_autoballLift	0.15	Minimum upward share of every hit, so the ball leaves the ground (0–0.9)
g_autoballMass	400	Ball mass (a car is about 1400)
g_autoballElasticity	0.6	Bounciness (0–1)

Mutators (not saved in q3config_server.cfg, set them in your config)

Cvar	Default	Description
g_autoballBalls	1	Number of match balls (1–3). Latched.
g_autoballBallScale	1	Ball size (0.5–2). Latched.
g_autoballBallGravity	1	Gravity for the ball only (0.1–2)

Logging and debugging

Cvar	Default	Description
g_autoballStats	0	1 writes a sample line per second to games.log for tools/autoball/analyze_log.py
g_autoballDebug	0	1 prints touches, shots, saves and demolition checks, 2 also bot roles

Weather 🧪

Development build. Maps with weather volumes can switch rain and snow on and off during a match.

Cvar	Default	Description
g_dynamicWeather	1	1 turns weather on and off over time, 0 keeps it on permanently
g_weatherInitialChance	70	Chance in % that weather is active when the map starts
g_weatherOnMinTime / g_weatherOnMaxTime	45 / 120	How long weather stays on, in seconds (random between min and max)
g_weatherOffMinTime / g_weatherOffMaxTime	25 / 90	How long weather stays off, in seconds

Ghosts 🧪

Cvar	Default	Description
g_ghostUpload	1	Upload drivers' best laps to the ladder as ghosts
g_ghostDownload	1	Download ladder ghosts for Ghost Race

See Ghosts and Ghost Race.

Vehicle physics

These values are set by the server, sent to every client, and latched (they take effect on the next map load). Keep them identical for a whole season or tournament, otherwise lap times can't be compared.

Cvar	Default	Description
car_spring	120	Suspension spring rate. Higher = stiffer, less body roll.
car_shock_up	12	Shock damping on compression
car_shock_down	11	Shock damping on rebound
car_swaybar	20	Anti-roll bar stiffness
car_wheel	2400	Wheel rotational inertia
car_wheel_damp	140	Wheel spin damping
car_frontweight_dist	0.5	Front/rear weight distribution (0.5 = even)
car_IT_xScale / _yScale / _zScale	1.0	Scaling of the car's inertia tensor per axis
car_body_elasticity	0.05	Body elasticity in collisions
car_air_cof	0.31	Aerodynamic drag coefficient
car_air_frac_to_df	0.5	Share of aerodynamic force turned into downforce
car_friction_scale	1.1	Global tyre grip multiplier

Ladder

sv_ladderEnabled, sv_ladderUrl and sv_ladderApiKey are described in Ladder Server Setup.

Bot debugging

Cvar	Description
g_aiDmnetDebugExport	2 writes a per-tick JSONL log of the bot navigation
g_aiDmnetDebugExportPath	Target file, e.g. logs/ai_dmnet_debug.jsonl

Details in Bot Navigation.