H-game meaning: where the H comes from and what the term covers

An H-game is a video game with sexual content, usually Japanese or made in the Japanese style. It means the same thing as eroge. Wikipedia’s article on eroge defines the genre as Japanese erotic video games and adds that they are “also called an H-game or ecchi game.”

The H is the first letter of hentai, written in Roman letters. In Japanese the letter is read as etchi, written ecchi in English, and since the post-war period it has served as a milder, almost playful shorthand for anything sexual.

This page explains where the term comes from, what it covers, how it differs from eroge, ecchi, nukige and hentai, what an H-scene is, and how H-games are labelled in stores. It is written for players meeting the term for the first time and for developers deciding how to describe their games.

Key points

• H-game means eroge. Both refer to Japanese-style adult video games.
• The H comes from hentai. It is the first letter of the romanised word.
• H is read ecchi. In Japanese it is milder than hentai.
• An H-scene is an erotic scene in a game. The same letter is used.
• H-games cover many genres. Visual novels and dating sims are the most common.
• There is no H rating. Stores label these games 18+, R18 or adult only.

Where the H comes from

The story starts with the Japanese word 変態, hentai. According to Wikipedia, it comes from classical Chinese, where it meant a change from one state to another. In Japanese it came to mean “different”, “unusual” or “strange”, and then “abnormality”.

In psychology, the phrase hentai seiyoku, roughly “abnormal sexual desire”, was shortened to hentai, which then carried a sexual sense of perversion. That is the meaning the word still has in Japanese: strong, and when applied to a person, an insult.

The H came next. Hentai was shortened to the letter H, the first letter of its romanisation. Japanese reads the letter H as etchi. The cultural historian Mark McLelland, cited by Wikipedia, links the shortening to the period after the Second World War, when etchi came to mean lewdness without the stronger sense of abnormality. Wikipedia’s timeline records ecchi in use by the 1960s.

So the H in H-game is a softened form of hentai. In Japanese, saying something is etchi is closer to saying it is “naughty” than “perverted”.

What counts as an H-game

An H-game is any game with sexual content, and the content can play very different roles.

Wikipedia notes that the term covers “a wide variety of Japanese games containing erotic content across multiple genres”. At one end are games where sexual content is the main point. At the other are long story games, such as the visual novel Kanon, where it appears only occasionally.

The most common formats are visual novels and dating sims, but H-games also include:

• role-playing games, often built in RPG Maker;
• strategy and simulation games;
• puzzle and card games with scenes as rewards;
• action and platform games;
• management games, such as running a shop or a farm.

For a broader survey, see what adult games are and the guide to adult visual novels.

H-game vs eroge vs ecchi game vs nukige

These terms are often used as if they were the same. Some are; some are not.

Two of these need a closer look.

Ecchi. In Japanese, ecchi and H are the same sound, so an ecchi game is an H-game. English has given the word a different meaning: Wikipedia notes that in English, ecchi is usually associated with fan service and generally implies no explicit sex, while hentai implies explicit material. It also calls that split between hardcore and softcore “entirely artificial”. In practice, an English speaker who says “ecchi game” usually means something tamer than one who says “H-game”.

Nukige. This is a subset. Every nukige is an H-game, but most H-games are not nukige. The term marks games where gratification is the main purpose and the story is light. Its counterparts, such as nakige for games built to make you cry, are explained in nukige, nakige, utsuge and moege.

The bishōjo game is a related but separate category, defined by its characters rather than its content. See bishōjo game meaning.

What an H-scene is

An H-scene uses the same letter for an erotic scene inside a game. Wikipedia’s article on hentai gives etchi shīn as the Japanese term.

In most H-games, H-scenes are distinct events rather than a constant presence. Typical patterns are:

• Story unlocks. A scene plays at a set point on a character’s route.
• Relationship unlocks. A scene becomes available once an affection value reaches a threshold.
• Choice unlocks. A scene depends on decisions the player makes.
• Reward unlocks. In puzzle or battle games, a scene is the reward for winning.

Most H-games also have a gallery, often called a recollection or CG mode, where scenes already seen can be replayed.

A short history

Wikipedia’s article on eroge dates the earliest known commercial erotic computer game to 1982, a strip version of the party game yakyūken from the publisher PSK, and also notes Koei’s Danchi Zuma no Yūwaku the same year. Both appeared on Japanese home computers such as NEC’s PC-8001.

The form changed in the 1990s. Elf’s Dōkyūsei, in 1992, introduced the love simulation genre. Leaf’s Shizuku, in 1996, popularised the term “visual novel”. To Heart in 1997 and Key’s Kanon in 1999 became some of the best-known eroge, and Kanon sold more than 300,000 copies and was adapted into anime twice.

Consoles stayed closed. Wikipedia notes that Nintendo and Sony did not allow adult video games, and that Sega stopped allowing nudity in Saturn games in 1996. H-games remained a PC form, which they largely still are. For the longer story, see the history of adult games.

Censorship and all-ages versions

Japanese H-games are sold with genitals censored, because of Japanese obscenity law. Wikipedia notes that uncensored versions generally appear only in games licensed for release outside Japan. For how this works, see mosaic censorship explained.

Many successful H-games are also released in all-ages versions, which Wikipedia says either censor or remove the sex scenes entirely. These versions are what usually reach consoles and phones, and they explain why a game known as an H-game in one market can be a mainstream visual novel in another.

How H-games are labelled in stores

No store or rating board uses “H” as a label. The term is a fan and developer word.

People sometimes search for an “H rating”, but there is none. For the real ratings, see the AO rating explained and CERO Z explained.

Should developers use the term?

H-game is widely understood among players of Japanese-style games and in Japanese-language storefronts. It is less clear to a general audience, and some audiences find it awkward.

For a store page or a press release, “adult game” or “18+ visual novel” is usually clearer. For a community already familiar with the genre, H-game and eroge are normal words. For a full list of the vocabulary, see the adult game terms glossary.

How this page was put together

The etymology comes from Wikipedia’s article on hentai, which cites Mark McLelland and other scholars. The definition, history and censorship points come from Wikipedia’s articles on eroge and visual novels, all read on 18 October 2026. Store labels come from the stores’ own documentation and from earlier pages on this site.

This page is a definition, not a review, and it names no games beyond the historical examples in the sources. To report an error, see the corrections standard.