異世界ギルドマスターズ (Isekai Girudo Masuta-zu) (Isekai Guild Masters) is a Japanese board game of managing an adventurer guild. Isekai is a popular genre in Japanese culture, where characters travel to a different world. The game runs in just such a fantasy world that is set on 'an another world where persons of real world reincarnate to', and is full of the flavor text typical of the genre.

The mechanism of the game focuses on how much players can play by expanding reproduction without stress.

There is no direct attack with cards but the main interactions between players are through area control and quick taking of certain actions.

Each game play will go on differently due to each of the event cards are all unique (no duplicated cards in 105 cards total) and the other characters (who have unique ability) is dispatched to another player.

The game is inspired closely by the game Terraforming Mars, a favourite game of the designer.

このゲームは日本のライトノベルを題材とした「冒険者ギルド経営ゲーム」です。

「現実世界の人物がファンタジー世界に転移する」世界観のファンタジー世界で、フレーバーテキストが非常に充実しています。

システムは気持ちよく拡大再生産を行えることを重視しており、カードによる直接攻撃はなく、インタラクションは陣取り、特定アクションの早取りがメインです。

イベントカードはすべてユニーク（105種105枚）で、プレイヤーごとに違った受付嬢（能力持ち）が配布されるため、毎回異なった展開となり、リプレイ性が非常に高いゲームです。

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