《關於我轉生變成史萊姆這檔事 坦派斯特開拓譚》（日文原名：転生したらスライムだった件 テンペストストーリーズ，英文暫譯：That Time I Got Reincarnated as a Slime: Tempest Story）是改編自人氣輕小說與動畫《關於我轉生變成史萊姆這檔事》的模擬角色扮演遊戲，由Bandai Namco於2024年在Nintendo Switch等平台發行。聚焦於史萊姆主角「利姆路·坦派斯特」建立魔國聯邦「坦派斯特」初期的冒險與開發歷程，融合建設模擬、角色互動與策略戰鬥三大要素，為粉絲打造一段原創且具有延伸性的故事體驗。

故事背景設定在動畫第一季至第二季之間的時期，將以利姆路的視角經營並發展魔國聯邦。由於新國度剛成立，各種設施、人力資源與外交問題尚未完善，利姆路必須帶領哥布林、狼人族、鬼人族等部族齊心協力，將這片荒地打造成繁榮都市。遊戲原創角色亦會在過程中登場，例如神秘的魔導學者與流浪戰士等，進一步豐富故事層次與任務內容。對話演出採全語音方式，並搭配動畫風格的立繪與過場插畫，使劇情表現更加生動。

在操作與玩法方面，採用「建設×冒險×戰鬥」的混合設計。需透過資源收集、建築升級、角色派遣等方式，強化坦派斯特的城鎮發展。每棟建築不僅影響生產效率，也能觸發特殊事件或招募新角色，形成策略與經營的雙重挑戰。戰鬥部分則為指令制回合戰鬥，可編組包含動畫角色的戰鬥小隊，發動技能連段與支援指令來應對敵方。每位角色皆有等級、裝備與技能樹系統，可進行細緻培養。

本作的一大特色是角色關係養成與事件解鎖。與角色互動愈深，不僅可解鎖特殊劇情與支線任務，也會開放專屬建築與增益效果，例如與紫苑建立羈絆後，可開啟特殊食堂設施，提供城鎮額外效果。這類設計使玩家對角色的培養與城鎮經營形成緊密連動，進一步提升遊戲的沉浸感與長期目標。

市場評價方面，整體獲得粉絲向的正面反應。許多《轉生史萊姆》愛好者認為本作忠實呈現原作的世界觀與角色性格，並肯定其原創劇情補完動畫之間的空白段落。《Famitsu》雜誌指出，雖然系統設計並未特別創新，但遊戲節奏溫和，適合喜歡養成與輕策略的玩家，尤其角色語音與互動內容極具親和力。然而亦有評論指出，遊戲後期內容變化不大，建設與任務會進入重複循環，可能影響耐玩度；戰鬥方面雖有養成深度，但整體節奏偏慢，無法吸引喜歡即時戰鬥的玩家。

綜合來看，這是以角色魅力與世界觀為主軸，輔以模擬建設與回合制戰鬥的粉絲向作品。對於熟悉動畫與小說原作的玩家來說，是輕鬆、懷舊且具有延伸補完感的奇幻經營冒險；但對一般玩家而言，可能更適合作為閒暇時的輕鬆體驗，而非追求高強度系統深度的核心RPG遊戲。

"That Time I Got Reincarnated as a Slime: Tempest Story" (Japanese title: 転生したらスライムだった件 テンペストストーリーズ) is a simulation RPG based on the popular light novel and anime series That Time I Got Reincarnated as a Slime. Developed and published by Bandai Namco, the game was released in 2024 for platforms including the Nintendo Switch. It centers on the early days of the protagonist Rimuru Tempest and his efforts to establish the Jura Tempest Federation. By blending town-building simulation, character interaction, and strategic turn-based combat, the game offers an original, lore-friendly experience for fans of the series.

The story is set between seasons one and two of the anime, and players experience events from Rimuru’s perspective as he works to build a thriving monster nation from scratch. Since the federation is newly formed, Rimuru must address infrastructure, manpower, and diplomatic issues. Together with goblins, lycanthropes, ogres, and other tribes, he transforms barren land into a flourishing city. The game also introduces original characters such as a mysterious arcane scholar and a wandering swordsman, enriching the narrative and quest diversity. All dialogue is fully voice-acted, with expressive anime-style character portraits and cutscene illustrations that bring the story to life.

In terms of gameplay, the title combines construction, adventure, and combat. Players collect resources, upgrade buildings, and assign characters to optimize the growth of Tempest. Each building influences productivity and can unlock special events or recruitable characters, creating a dual-layer of strategy and management. Combat is command-based and turn-oriented. Players can form battle teams with familiar anime characters and use skill combos and support abilities to counter enemies. Each character has their own level, equipment, and skill tree, allowing for detailed progression and customization.

One of the game’s standout features is the character bonding and event-unlock system. Deepening relationships with characters not only opens up unique side stories and missions but also unlocks exclusive buildings and buffs. For example, building a bond with Shion grants access to a special cafeteria facility that boosts the town’s performance. This design tightly links character development with town-building, increasing immersion and giving players long-term goals.

From a market standpoint, the game has received generally positive feedback from fans of the Slime series. Many praised how faithfully it captures the world and personalities of the original work, and appreciated the story’s role in filling narrative gaps between the anime’s seasons. According to Famitsu, while the gameplay systems are not particularly groundbreaking, the gentle pacing makes it appealing to players who enjoy nurturing games and light strategy. The character voice work and interactions were especially praised for their charm. However, some critics noted that the later stages of the game suffer from repetitive tasks and limited variety in content, which may affect its long-term appeal. While the character development in combat is deep, the slower pace might not satisfy players who prefer real-time or more intense gameplay.

Overall, That Time I Got Reincarnated as a Slime: Tempest Story is a fan-focused title that leans heavily on character charm and world-building. It merges simulation, storytelling, and turn-based mechanics into a relaxed fantasy management adventure. For players familiar with the anime or novel, it offers a nostalgic and lore-rich experience. For newcomers or core RPG fans, it may be better suited as a casual, laid-back diversion rather than a high-intensity, system-heavy title.