Here is a list of all variables with links to the files they belong to:

- i -

ICE_MAX_ALPHA : sv_freezetag.qh
ICE_MIN_ALPHA : sv_freezetag.qh
iceblock : sv_freezetag.qh
icon_realmodel : cl_controlpoint.qc
ideal_yaw : progsdefs.qc
idealpitch : dpextensions.qc, progsdefs.qc
idle_aim : sv_turrets.qh
idletime : walker.qc
IFLAG_ANGLES : interpolate.qh
IFLAG_AUTOANGLES : interpolate.qh
IFLAG_AUTOVELOCITY : interpolate.qh
IFLAG_INTERNALMASK : interpolate.qh
IFLAG_ORIGIN : interpolate.qh
IFLAG_PREVALID : interpolate.qh
IFLAG_TELEPORTED : interpolate.qh
IFLAG_V_ANGLE : interpolate.qh
IFLAG_V_ANGLE_X : interpolate.qh
IFLAG_VALID : interpolate.qh
IFLAG_VELOCITY : interpolate.qh
iflags : interpolate.qh
iforward1 : interpolate.qc
iforward2 : interpolate.qc
ignore_list : main.qh, cmd.qh
ignore_list_apply_time : main.qh
IGNORE_LIST_SEND_NOW : cmd.qh
ignore_list_send_time : cmd.qh
IGNORE_MAXPLAYERS : cmd.qh
ignored : scoreboard.qh
ignoregoal : api.qh, havocbot.qh
ignoregoaltime : api.qh, havocbot.qh
il_id : intrusivelist.qh
il_links : intrusivelist.qh
il_links_flds : intrusivelist.qh
il_links_ptr : intrusivelist.qh
il_listmask : intrusivelist.qh
il_lists : intrusivelist.qh
IL_MAX : intrusivelist.qh
IMG_COUNT : infomessages.qc
img_cur_msg : infomessages.qc
img_fade : infomessages.qc
img_time : infomessages.qc
imp : impulse.qc
impressive_hits : damage.qh
impulse : progsdefs.qc
IMPULSE_DEFAULT_ACCEL_STRENGTH : impulse.qh
IMPULSE_DEFAULT_DIRECTIONAL_STRENGTH : impulse.qh
IMPULSE_DEFAULT_RADIAL_STRENGTH : impulse.qh
IMPULSE_DIRECTIONAL_MAX_ACCEL_FACTOR : impulse.qh
IMPULSE_DIRECTIONAL_SPEEDTARGET : impulse.qh
IMPULSE_MAX_PUSHDELTATIME : impulse.qh
inactive : models.qh
independent_players : client.qh
ingame : sv_rules.qh
initialize_entity_first : world.qh
initialize_entity_next : world.qh
initialize_entity_order : world.qh
INITPRIO_DROPTOFLOOR : constants.qh
INITPRIO_FINDTARGET : constants.qh
INITPRIO_FIRST : constants.qh
INITPRIO_GAMETYPE : constants.qh
INITPRIO_GAMETYPE_FALLBACK : constants.qh
INITPRIO_LAST : constants.qh
INITPRIO_LINKDOORS : constants.qh
INITPRIO_SETLOCATION : constants.qh
input_angles : csprogsdefs.qc
input_buttons : csprogsdefs.qc
input_movevalues : csprogsdefs.qc
input_timelength : csprogsdefs.qc
instagib_needammo : sv_instagib.qc
instagib_nextthink : sv_instagib.qc
INSTAGIB_POWERUP_COUNT : sv_instagib.qc
instagib_remaining_powerups : sv_instagib.qc
instanceOfAmmo : guide.qh
instanceOfArmor : guide.qh
instanceOfHealth : guide.qh
instanceOfPowerup : guide.qh
instanceOfVoiceMessage : globalsound.qh
INTEGER_ONE : unsafe.qh
intermission : csprogsdefs.qc
intermission_exittime : intermission.qh
intermission_running : intermission.qh
intermission_time : view.qh
internalteam : weaponsystem.qh
inv_endreached : sv_invasion.qc
inv_lastcheck : sv_invasion.qh
inv_maxcurrent : sv_invasion.qh
inv_maxrounds : sv_invasion.qh
inv_maxspawned : sv_invasion.qh
inv_monsterskill : sv_invasion.qh
inv_numkilled : sv_invasion.qh
inv_numspawned : sv_invasion.qh
inv_roundcnt : sv_invasion.qh
INV_TYPE_HUNT : sv_invasion.qh
INV_TYPE_ROUND : sv_invasion.qh
INV_TYPE_STAGE : sv_invasion.qh
inv_warning_shown : sv_invasion.qc
inventory : inventory.qh
Inventory_groups_major : inventory.qh
Inventory_groups_minor : inventory.qh
inventory_store : inventory.qh
INVERT_TEAMS : defs.qh
invincible_finished : item.qh
invisibility_finished : invisibility.qh
iorigin1 : interpolate.qc
iorigin2 : projectile.qh, interpolate.qc
is_item : items.qh
is_path_node : pathlib.qh
isbot : api.qh, bot.qh
iscaptured : cl_controlpoint.qc, sv_controlpoint.qc, sv_onslaught.qh
iscreature : main.qh
ISF_ANGLES : item.qh
ISF_COLORMAP : item.qh
ISF_DROP : item.qh
ISF_LOCATION : item.qh
ISF_REMOVEFX : item.qh
ISF_SIZE : item.qh
ISF_SIZE2 : item.qh
ISF_STATUS : item.qh
islinked : sv_onslaught.qh
ISPLAYER_CLIENT : common.qh
ISPLAYER_LOCAL : common.qh
ISPLAYER_MODEL : common.qh
ISPLAYER_PLAYER : common.qh
isplayermodel : csqcmodel_hooks.qh
isshielded : sv_onslaught.qh
istypefrag : jumppads.qh, damage.qh, player.qh
IT_ARMOR1 : progsdefs.qc
IT_ARMOR2 : progsdefs.qc
IT_ARMOR3 : progsdefs.qc
IT_AXE : progsdefs.qc
IT_BUFF : item.qh
IT_CELLS : progsdefs.qc
IT_DESPAWNFX_TIME : item.qh
IT_EXTRA_WEAPON : progsdefs.qc
IT_FUEL_REGEN : item.qh
IT_GRENADE_LAUNCHER : progsdefs.qc
IT_INVINCIBLE : item.qh
IT_INVISIBILITY : item.qh, progsdefs.qc
IT_INVULNERABILITY : progsdefs.qc
IT_JETPACK : item.qh
IT_KEY1 : item.qh, progsdefs.qc
IT_KEY2 : item.qh, progsdefs.qc
IT_LIGHTNING : progsdefs.qc
IT_NAILGUN : progsdefs.qc
IT_NAILS : progsdefs.qc
IT_PICKUPMASK : item.qh
IT_QUAD : progsdefs.qc
IT_RESOURCE : item.qh
IT_ROCKET_LAUNCHER : progsdefs.qc
IT_ROCKETS : progsdefs.qc
IT_SHELLS : progsdefs.qc
IT_SHOTGUN : progsdefs.qc
IT_SPEED : item.qh
IT_STRENGTH : item.qh
IT_SUIT : progsdefs.qc
IT_SUPER_NAILGUN : progsdefs.qc
IT_SUPER_SHOTGUN : progsdefs.qc
IT_SUPERHEALTH : progsdefs.qc
IT_SUPERWEAPON : item.qh
it_times : itemstime.qc
IT_UNLIMITED_AMMO : item.qh
IT_UNLIMITED_SUPERWEAPONS : item.qh
IT_UPDATE_INTERVAL : item.qh
IT_USING_JETPACK : item.qh
ITEM_D_MAXS : item.qh
ITEM_D_MINS : item.qh
item_glowmod : items.qc
item_group : items.qh
item_group_count : items.qh
item_keys_names : keys.qh
ITEM_L_MAXS : item.qh
item_model_ent : items.qh
item_pickupsound : items.qh
item_pickupsound_ent : items.qh
ITEM_RESPAWN_TICKS : items.qh
item_respawncounter : items.qh
ITEM_S_MAXS : item.qh
ITEM_S_MINS : item.qh
item_simple : items.qc
item_spawnshieldtime : items.qh
itemdef : items.qh
itemkeys : subs.qh
items : player.qh, progsdefs.qc
ItemStatus : item.qh
ItemsTime_availableTime : itemstime.qc
ItemsTime_time : itemstime.qc
itime1 : interpolate.qc
itime2 : interpolate.qc
ITS_ALLOWFB : item.qh
ITS_ALLOWSI : item.qh
ITS_ANIMATE1 : item.qh
ITS_ANIMATE2 : item.qh
ITS_AVAILABLE : item.qh
ITS_EXPIRING : item.qh
ITS_GLOW : item.qh
ITS_STAYWEP : item.qh
iup1 : interpolate.qc
iup2 : interpolate.qc
ivelocity1 : interpolate.qc
ivelocity2 : interpolate.qc
ivforward1 : interpolate.qc
ivforward2 : interpolate.qc
ivup1 : interpolate.qc
ivup2 : interpolate.qc