Once upon a time there was a twin-tailed sister princess who was very unfriendly.

敵もツインテールも超デカイ物体Ｘも、とにかく上に乗れさえすればなんだって、持ちあげてぶん投げることができる夢○場的アクションゲームです。 主人公の妹姫様の目の前に立ちふさがるのは、妹の所業に腹を立てていた姉姫様。 国の大事をそっちのけにした姉妹喧嘩が繰り広げられてしまいます。

Launch options

No player history yet. This app is now tracked, so data will appear within about ten minutes.

Regional prices

All Steam store regions, converted to USD at today's exchange rate, compared with the US price. Lowest is the lowest price SteamRaw has recorded for that region.

Price history, US store (USD)

Branches

Depots

A build is one published version of the game's files on a branch. Steam assigns a new build ID every time the developer pushes an update, so this list is the update history of the app. The files inside a build (depot manifests) are only readable with an account that owns the game, which SteamRaw does not have yet, so build contents are not shown.

Every appinfo change SteamRaw has observed, grouped by changelist. Tags, features, languages, builds, depots, prices and any other key Steam publishes. Tracking since 2026-09-11 22:03 UTC.

No changes recorded since SteamRaw first saw this app. Every future PICS change will be listed here.

No news for this app.

Full appinfo as delivered by Steam PICS, changenumber 35802752. Also at /api/app/2609070/raw.

{
  "appid": "2609070",
  "common": {
    "name": "むかしむかしあるところにとてつもなく仲の悪い ツインテールの姉妹姫様がいらっしゃいましたとさ。",
    "type": "Game",
    "clienttga": "cc89625f068cea7ce986992c8677b09564ece73d",
    "clienticon": "16bcf1fcfb196b186d4cac2a678e1136e606a73c",
    "icon": "c79c0a32960680a454cdcf00f60427ad785f277b",
    "name_localized": {
      "english": "Once upon a time there was a twin-tailed sister princess who was very unfriendly.",
      "japanese": "むかしむかしあるところにとてつもなく仲の悪いツインテールの姉妹姫様がいらっしゃいましたとさ"
    },
    "oslist": "windows",
    "osarch": "",
    "osextended": "",
    "releasestate": "released",
    "controllertagwizard": "1",
    "controller_support": "partial",
    "small_capsule": {
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    },
    "header_image": {
      "english": "header.jpg",
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    },
    "library_assets": {
      "library_capsule": "en,ja",
      "library_hero": "en,ja",
      "library_logo": "en,ja",
      "logo_position": {
        "pinned_position": "BottomLeft",
        "width_pct": "47.795100207730904",
        "height_pct": "71.875"
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    "library_assets_full": {
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      },
      "library_hero": {
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        },
        "image2x": {
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          "japanese": "library_hero_japanese_2x.jpg"
        }
      },
      "library_logo": {
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    "store_asset_mtime": "1697440844",
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      "1": {
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    },
    "primary_genre": "1",
    "genres": {
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    "category": {
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      "category_18": "1",
      "category_60": "1",
      "category_62": "1"
    },
    "supported_languages": {
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        "supported": "true"
      }
    },
    "steam_release_date": "1701982748",
    "community_hub_visible": "1",
    "gameid": "2609070",
    "store_tags": {
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  "extended": {
    "developer": "Daisessen",
    "publisher": "Daisessen",
    "homepage": "https://ci-en.dlsite.com/creator/25263"
  },
  "config": {
    "installdir": "むかしむかしあるところにとてつもなく仲の悪い ツインテールの姉妹姫様がいらっしゃいましたとさ。",
    "steamcontrollertemplateindex": "1",
    "steamcontrollerconfigdetails": {
      "3042865613": {
        "controller_type": "controller_xbox360",
        "enabled_branches": "default",
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    },
    "steamdecktouchscreen": "1",
    "steamconfigurator3rdpartynative": "65535",
    "launch": {
      "0": {
        "executable": "MukasiMukasi.exe",
        "type": "default",
        "config": {
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  "depots": {
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    "branches": {
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}