Minesweeper Adventure Tale 2: Rurumu's Adventure: its lineage, descendants, and standing in Japan
01What this origin is
Not a defining-mechanic ancestor, but the earlier game this heroine headlined: Minesweeper Adventure Tale 2: Rurumu's Adventure (扫雷冒险谭2 ~露露姆的冒险~), a minesweeper-based adventure game developed by CelLab, the same studio behind Core Awaken Rurumu's will, and published in the China market by OTAKU Plan, released March 19, 2021 with Simplified Chinese as its only supported language per Steam's own listing. It stars the same robot heroine, Rurumu, on the same mission she is still on in Core Awaken Rurumu's will: getting the people of Noruru Village home safely, in this case after a disaster leaves their route buried in landmines. Per its own store page, the number revealed on a swept tile tells you how many mines surround it, so you mark them by deduction across more than a hundred stages, picking up items and dodging traps along the way, and leveling up equipped skills using stars earned as stage-clear rewards. Core Awaken Rurumu's will keeps Rurumu and her drive to protect that same village, but replaces that number-reading minesweeper puzzle entirely with real-time, switchable combat and a second playable heroine of her own.
02Sources
03Buried gems that carry this root
Core Awaken Rurumu's will Buried gem
A side-scrolling action RPG about a maid robot named Rurumu whose own core awakened the moment she wished to 'live happily ever after with the Village Head,' only to find that awakening got in the way of the goal it was chasing in the first place: understanding what actually makes people happy, by becoming more human herself. After she fails to keep the Village Head safe in an incident and discovers just how incompetent she is in a fight, she sets out to protect Noruru Village and find her own 'Fighting Style,' developed and published by the small Japanese studio CelLab (セルレ部) together with the label 072 Project / 072 News. She shares the mission, and the controls, with Kitsunetsuki Koharu, a War Shrine Maiden of the Demon Slayer Institution trained since childhood, who has already had to end more of her own corrupted fellow shrine maidens than actual demons and privately wishes she could just become a heartless demon-slaying robot herself. Per Steam's own store page, the two of them switch between distinct fighting styles mid-mission, and the game is built around reading each situation and picking whichever style counters it, while missions run you through a variety of enemies and treasure toward mission challenges and a high score (one of the game's own Steam achievements is literally named 'Perfect Chain Destruction'), with RPG-style equipment and upgrades layered on top for each of them. Its achievement list also confirms a chapter structure that includes a dedicated 'Koharu Chapter,' three explorable areas (Village Outskirts, Snow Mountain, and an Underground Passage), and a bonus 'Infinite Tower' you can climb floor by floor once the story's demon-clan plot is foiled. Released April 30, 2026 per Steam's own listing on both its Japanese and English storefronts, it is Very Positive at 98 percent per Steam's own store page (94 of 96 reviews positive per Steam's review API), a paid title at $12.99 in the US (¥1,980 in Japan), not free, fully launched and not in Early Access, with no AI-generated assets and, per Steam's own content descriptors, nothing sexual (ids: none, notes: none). It supports Traditional Chinese, English, and Japanese text and interface only (no Simplified Chinese, no Korean), and while pages for it already exist on aggregators like IGDB, Metacritic, Kotaku, and Backloggd, and the indie tracker PixelWave has covered it, we found no substantial Western editorial review or feature to point to; only about 18 of its 96 reviews, roughly 18.8 percent, are in English so far, so calling this discovered by the West would not be honest. What is true is that its recognition outside Japan is only just getting started.