Cross referenced effects of the Intelligence stat.

Member activity_handlers::forage_finish (player_activity *act, player *p)

Intelligence Intelligence caps survival skill gains from foraging

Member activity_handlers::robot_control_finish (player_activity *act, player *p)

Intelligence increases chance of successful robot reprogramming, vs difficulty

Member avatar::do_read (item &book)

Intelligence increases reading comprehension

Member computer::hack_attempt (player &p, int Security=-1)

Intelligence <8 randomly penalizes hack attempts, 50% of the time

Intelligence >8 randomly benefits hack attempts, 33% of the time

Member dialogue::dynamic_line (const talk_topic &topic) const

Intelligence slightly affects whether player can size up NPCs

Member eff_fun_hallu (player &u, effect &it)

NPC Intelligence decreases volume of hallucination sounds

Member game::walk_move (const tripoint &dest)

Intelligence decreases chance of tentacles getting stuck to the ground

Member hackveh (player &p, item &it, vehicle &veh)

Intelligence increases chance of bypassing vehicle security system

Member iexamine::hack_attempt (player &p)

Intelligence increases success chance of hacking card readers

Member iuse::einktabletpc (player *, item *, bool, const tripoint &)

Intelligence increases chance of safely decrypting memory card

Member iuse::granade_act (player *, item *, bool, const tripoint &)

Maximum Intelligence increases possible granade int buff for NPCs

Maximum Intelligence increases possible granade int buff

Maximum Intelligence increases possible granade int debuff for NPCs (NEGATIVE)

Maximum Intelligence increases possible granade int debuff (NEGATIVE)

Member iuse::multicooker (player *, item *, bool, const tripoint &)

Intelligence increases chance of checking multi-cooker on time

Intelligence increases chance to successfully upgrade multi-cooker

Member iuse::mycus (player *, item *, bool, const tripoint &)

Intelligence slightly reduces sleep duration when eating mycus

Member iuse::robotcontrol (player *, item *, bool, const tripoint &)

Intelligence speeds up hacking preperation

Member marloss_common (player &p, item &it, const trait_id &current_color)

Intelligence slightly reduces sleep duration when eating mycus+goo

Intelligence reduces sleep duration when eating wrong color marloss

Member mattack::fear_paralyze (monster *z)

Intelligence decreases chance of being paralyzed by fear attack

Member mattack::riotbot (monster *z)

Intelligence >10 allows and increases chance whether you can feign death to avoid riot bot arrest

Intelligence >10 allows and increases chance of successful feign death against riot bot

Member mutagen_iv_actor::use (player &, item &, bool, const tripoint &) const override

Intelligence reduces sleep duration when using IV mutagen

Member npc_trading::net_price_adjustment (const player &buyer, const player &seller)

NPC Intelligence slightly increases bartering price changes, relative to your INT

Intelligence slightly increases bartering price changes, relative to NPC INT

Member place_monster_iuse::use (player &, item &, bool, const tripoint &) const override

Intelligence increases chance of a placed turret being friendly

Member player::check_needs_extremes ()

Intelligence slightly decreases occurrence of short naps when dead tired

Intelligence slightly decreases occurrence of short naps when exhausted

Intelligence slightly decreases occurrence of short naps when sleep deprived

Member player::complete_craft (item &craft, const tripoint &loc=tripoint_zero)

Intelligence increases chance to learn recipe when crafting from a book

Member player::complete_disassemble (item_location &target, const recipe &dis)

Intelligence increases success rate for disassembling items

Member player::crafting_success_roll (const recipe &making) const

Intelligence increases crafting success chance

Member player::hardcoded_effects (effect &it)

Intelligence decreases occurrence of itching from formication effect

Member player::perform_technique (const ma_technique &technique, Creature &t, damage_instance &di, int &move_cost)

Intelligence slightly increases chance to learn techniques when using CQB bionic

Member player::read_speed (bool real_life=true) const

Intelligence increases reading speed

Member player::rust_rate (bool real_life=true) const

Intelligence reduces skill rust

Member player::talk_skill () const

Intelligence slightly increases talking skill

Member try_hack (player &p)

Intelligence increases success chance of hacking

Member vehicle::turrets_aim (bool manual=true, bool automatic=false, vehicle_part *tur_part=nullptr)

Intelligence speeds up aiming of vehicle turrets

Member weed_msg (player &p)

Intelligence changes messages when smoking weed