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About Ma-suru: Daiisshou

Ma-suru: Daiisshou is a story-driven RPG built around creating mathematical expressions. It continues a series that began with a prologue. After meeting in the previous story, Mariel, who set out to find medicine for her sick mother, and Tyler, who ran away after arguing with his father, begin living together.

Story and objectives

You assign actions to each character and advance time, completing the objectives set for each episode. The game currently includes Episodes 1 and 2 of Chapter 1.

Puzzles and exploration

Turn-based battles use puzzles in which you create simple mathematical expressions. You explore dungeons by moving around their maps, while field travel takes place in a first-person view as you move along routes. The story unfolds in a visual-novel style, and a separate math-puzzle system lets you create recipes.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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