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Alternate DiMansion Diary
A university student named Sae finds herself lost in the mountains. While searching for help, she comes across an old looking mansion and decides to enter it. However, there was more to this mansion than meets the eye. What will become of Sae? Find out in this Puzzle-Escape RPG!
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.
“I PLAYED THIS GAME 2 TIMES... Once in pirate few years ago and visit it again in steam. This game is not too long and not too hard and the h scene is one of the best in pixel animation.”
— a player, Steam review · 2 hrs played“An okay game. The UI was a bit confusing at times, and I can't seem to unlock Ending 3 because (spoiler hidden) Fine overall”
— a player, Steam review · 2 hrs played“I like the story and the mansion seems like something will get you at any moment.”
— a player, Steam review · 9 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2024-07 via SteamCharts.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-27. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-28). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
The Imperial Gatekeeper by Tengsten
https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/32398519/199f0630bd359a0a0735472ac9caeb8d3a0b23d1.png We're delighted to reveal that we will be releasing The Imperial Gatekee
Magical Girl Celesphonia Slated for May 7!
https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/32398519/c99467a8cb9f01e9e1b677e2dab90c1e47adb014.jpg We're thrilled to reveal that we will be releasing Magical Girl Celespho
The Heart of Darkness Trading Cards and More!
https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/32398519/72b6149ffabb30ff209645980c11139a2fa0878b.jpg We're excited to announce that we have enabled Steam Community Items for
Castaway of the Ardusta Sea by baron sengia
https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/32398519/dfbfa97848b3ce2e60fd4446d7f5f7c91b9949e5.png We're ecstatic to reveal that we will be releasing Castaway of the Ardus
The Heart of Darkness Is Now Available!
https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/32398519/f19bedc92a539395bf02a9173c339fec0890e4c4.png We're thrilled to reveal that The Heart of Darkness by BigWednesday is n
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-26.
| Genres | Adventure, Indie, RPG |
| Player tags | Sexual Content · Adventure · Nudity · Indie · Female Protagonist · Pixel Graphics · RPG · Anime · Multiple Endings · Puzzle · Hentai · JRPG (Steam store community voting) |
| Features | Single-player · Steam Cloud · Family Sharing |
| Languages | English, Simplified Chinese |
| Official site | https://www.kaguragames.com/ |
Minimum system requirements (PC)
Minimum: OS *: Windows® 7/8/8.1/10 Processor: Intel Core2 Duo or better Memory: 4 GB RAM Graphics: DirectX 9/OpenGL 4.1 capable GPU DirectX: Version 9.0 Storage: 2 GB available space Additional Notes: 1280x768 or better Display. Lag may occur from loading menus or maps. Turn off other programs before running the game.