In an Adventure Game and a Role-Playing Game, you need to explore everywhere to find information or important items to help you on your mission. Townspeople are usually a good source of information and for leads on where to get such items. While questioning people on the streets or customers patronizing businesses are common, some heroes take it one step further and actually enter private houses in search of what they need. For some strange reason, many games don't have these homeowners reacting negatively to the protagonist just barging in.
This seems to go against Real Life, where many jurisdictions have laws against trespassing. Even if there's no legal questions brought up, many consider it impolite to simply enter a home uninvited or at least with advance notice.
For this trope to apply, the heroes have to enter an area that would normally be restricted to them such as a private residence, a secure facility, etc. Going into a public place (shop, restaurant, park, etc) or a facility with areas open to the public doesn't count.
If you go a step further, you get Kleptomaniac Hero, a sister trope.
- In The Battle For Endor of Star Wars: Ewok Adventures, Cindel and Wicket encounter a creature named Teek who takes them into an apparently empty house. Cindel and Wicket soon learn that the house does have an owner, who expels them when he returns.
- The first Back to the Future has Doc Brown and Marty simply walking into Hill Valley High School to locate Marty's future parents and fix the damage Marty unwittingly caused earlier. Nobody seems to say or do anything about these obvious trespassers in the school.
- In WarCraft, Khadgar and Lothar first meet when the former is arrested for breaking into the garrison morgue, which he's entered to examine bodies he's smelled fel on.
- Aragorn, Legolas and Gimli are viewed as being trespassers in Rohan around the start of "The Two Towers" in The Lord of the Rings (as well as in the movie), upon encountering Eomer and his patrol. This is justified as orcs are active in the lands and both of Aragorn's companions are obviously not native to Rohan.
- In "Flame of the Inquisition" from the Time Machine Series, if you made a wrong choice, you were arrested by knights during your travels for unknowingly trespassing on their duke's land.
- In Shaman Blues, Witkacy breaks into Tadeusz's house to search it, as he suspects him to be the killer but his investigation is off the books. Konstancja has the same idea, but she tells Tadeusz's neighbor that he's sent her to get something and thus obtains the keys.
- Uncle Traveling Matt of Fraggle Rock became a perfect example of this trope when exploring "Outer Space", the world of the "silly creatures" (humans). A number of postcard segments show Matt inside of office buildings, schools and even inside private houses. He observes people in kitchens, living rooms, and bedrooms and then reports it back to Gobo through postcards. Matt's intrusions into these homes makes you wonder if Fraggle society doesn't have established protocol on privacy and personal space.
- The Elder Scrolls
- Daggerfall allows you to enter locked houses if you wish by picking the lock or simply breaking the door down. Both options may attract the attention of the guards though, with the latter moreso than the first.
- Morrowind removes the "break down the door" option, but still allows you to enter any location you can get into. The only way to get in trouble is to be seen by a guard while picking the lock. There are also a few "forbidden" areas which, if you enter before you are supposed to as part of a quest, you will be told to leave. (Vivec's palace is one such example.)
- Oblivion and Skyrim finally avert the trope. While you can still pick locks to break into places, any residents who are inside will threaten to call the guards or attack if you don't get out. Most private houses will be free to wander into during the day or while the owners are in (in keeping with a lot of more trusting rural communities) but locked up when unoccupied or at night. Additionally, these games added considerably more locations where a key is required to open certain doors in order to prevent Sequence Breaking with associated quests.
- Baldur's Gate has one of four things happen if you enter someone else's house in the big cities like Beregost and Baldur's Gate. The inhabitants may have a quest for you to do and completely ignore your trespass; may state clearly that they frown upon you barging in (but don't do anything); some call the guards on you; and some will even outright attack you.
- Lampshaded in Robopon when a townsman actually says "You can even go into someone's house without permission and take things!"
- Averted in King's Quest I: Quest For The Crown with Rumpelstilkin. After he helps you on your quest, he goes back inside his home. If you try to have Graham enter the home (at least in the official and fan remake), the game will call you out and say that it's impolite to enter someone's house uninvited.
- Subverted in Leisure Suit Larry 1: In the Land of the Lounge Lizards game. Larry can walk into just about anywhere, but is barred from entering the dance club or the penthouse of the casino/hotel...unless he use the correct item.
- In Ultima VIII, the Avatar can't walk into houses that are locked unless you have lockpicks, find another way in or use explosives to blow open the door. Be warned that if you're caught, you will suffer terrible consequences for breaking and entering someone's house.
- Dragon Quest III: The castle at Edina requires your to trespass in order to gain a crucial item. The guards won't let you in; you'll need to use either the Invisibility Herb or Invisibility spell to get past the guards. For some reason, none of the castle's inhabitants seem to object to your presence inside, impliying that the guard out front is just a Jerkass.
- Bioshock Infinite. Several times during the game you can go into private residences and ransack the place without any repurcussions. In one case you can steal money and food from a house while the people are still in it and know you're there.
- Zig-zagged in Robotrek. In your character's new hometown of Rococo, when he approaches a house he rings the doorbell before the door opens for him. But the homeowners never object to him rummaging around their cabinets for items. Plus there are other places like the sewers where kids are expressly forbidden, yet his quest takes him there anyway. And then the houses in the tropical village have no doors, so there's nothing to keep him from walking in unannounced.
- In Dragon's Dogma, the Arisen has no qualms about going into people's homes in his hometown. Perhaps it's justified, as the Arisen was a fisherman before he was called to action, and most of the houses he randomly enters and steals greenwarish from are Fisherman's Houses.
- In Final Fantasy X, Tidus enters people's homes in every town he goes to. The people usually don't care and chat with him as if he's a guest. Even while Seymour's gone, Tidus still goes through his mansion if there are no guards about.
- Link from The Legend of Zelda. No one cares when he trots in, breaks people's pots, and steals their valuables. But at least one guy in the ENTIRE series questions this. In Skyward Sword, he can even sleep in their beds to trigger the In-Universe Game Clock, and no one says a word of complaint.
- The character in Animal Crossing is able to visit his neighbours by simply knocking before immediately barging in if they're present. In the first game, he could enter even if they weren't home, but now they must be there first.
- Lampshaded in Dink Smallwood mod Quel. When the local wizard objects to Dink walking into his home without an invitation the following exchange takes place.
Dink: I always walk into people's houses. It's what I do. Only it doesn't work up north for some reason. You've got to help me!
Wizard: You've got issues.
- A staple in all games of the Thief series.
- Lampshaded in the first Dark Fall game, where if you read a letter one of the Dowerton hotel's guests left behind, the guest's ghost calls you nosy for poking around in other people's things.
- In chapter one of Spandex Force 2: Superhero U missing student Ms. Supreme attacks you for fighting with her father. When you object that he started it:
Infinitorax Supreme: Well, it might be a quaint concept, but I really don't approve of strangers invading my home!
- Lampshaded in Kingdoms of Amalur: Reckoning by a hermit named Derfel, who asks if waltzing into other people's houses uninvited ever ends poorly for you.
- Averted in Neverwinter Nights mod A Time for Heroes. If you break down a locked house door and enter, the irate occupants call for the guards, who will show up if you wait around long enough.
- Averted in, of all places, a Game Boy adaptation of Hercules: The Legendary Journeys, as JonTron found out upon being told "Get out of our home" while thinking this trope was in effect.
- Lampshaded in Escalia when Fayhe attempts to open a locked door.
Lumia: Maybe we should stop breaking into people's houses like this?
Fayhe: What? We're visiting our neighbors.
Lumia: That's one way to put it.
- Zig-zagged in Pathologic, where you need a lockpick to enter inhabitated houses, but the owners won't react to your presence as long as your reputation is good enough. But if you steal something in plain sight, the entire household will be out for your blood. The trope is played straight in regard to the houses of important characters and even any items they might contain. According to the Tragedian, "such is the custom of hospitality with the local aristocracy and those who try to emulate them".
- Parodied in South Park: The Stick of Truth. The New Kid can break into the South Park cast's houses and garages for items. However, there are couple of houses that cannot be entered, with one door showing a woman naked before she closes the door, then another door showing a man masturbating before he closes the door, and another man having sex with a donkey. And then, when you enter Canada, you could break into a house and going up the stairs, you see a Canadian couple having sex. The Canadian exclaims, "Who the fuck just walks into someone's houses?!?!" You would then leave and cannot go back upstairs.