《黑血》（Black Blood）是融合塔防與自上而下射擊玩法的動作策略遊戲，由Arcane Games開發，於2020年3月21日在Steam平台推出，在2026年以下載版方式在Switch上架。遊戲以復古風格的畫面與音樂，描繪出一個被人工智慧全面接管的末日科幻世界，整體節奏緊湊，強調戰術抉擇與資源管理，讓玩家在高壓環境下同時思考進攻與防守。

在劇情設定上，描繪一個文明瀕臨滅絕的未來。失控的人工智慧席捲整個星球，製造出大量合成機器人，無情地摧毀一切生命。主角是最後的抵抗者之一，肩負著保護關鍵信標的任務，這些信標將向整個銀河系發送求救訊號，警告其他文明即將到來的威脅。故事雖然不以大量文本敘事為主，但透過任務目標與不斷湧現的敵人，營造出孤立無援、與時間賽跑的末日氛圍，世界的存亡完全掌握在玩家的行動之中。

操作與玩法方面，採用俯視角射擊結合塔防機制。需要親自操控角色進行射擊，同時在戰場上建造與升級防禦塔，抵禦一波又一波的機器人與外星侵略者。戰鬥中擊敗敵人後會掉落能量粒子，這些資源既可用於升級五種不同的武器，也能強化防禦塔或提升無人機助手的能力。資源是有限的，因此每一次選擇都相當關鍵，是優先強化火力、改善防線，還是投資於支援單位，往往會直接影響戰局走向。

主要的一大特色是無人機助手的存在。這架無人機會全程伴隨玩家行動，在升級後能夠自動攻擊敵人、為玩家治療，甚至修復受損的建築物，成為戰場上不可或缺的夥伴。必須善用它的多功能性，在激烈戰鬥中維持生存，同時確保防禦體系不被瓦解。整體玩法結合動作、策略與生存要素，既考驗操作反應，也要求玩家在每一個階段制定合適的戰術。

在市場評價方面，因屬於小型獨立作品，但在喜愛塔防與俯視角射擊的玩家群體中獲得一定關注。玩家普遍肯定其核心玩法的直觀性與節奏感，認為射擊與塔防的結合讓戰鬥過程緊張而有變化。復古風格的畫面與配樂也獲得不少好評，被認為成功營造出懷舊又帶點冷冽的科幻氛圍。不過，也有部分玩家指出，遊戲內容量與關卡變化相對有限，長時間遊玩後的新鮮感略顯不足。

整體而言，《黑血》（Black Blood）是定位明確、玩法扎實的動作塔防射擊遊戲。它不追求複雜龐大的敘事，而是將重點放在戰鬥節奏、資源抉擇與生存壓力上。對於喜歡復古風格、享受在有限資源下規劃戰術、並同時體驗射擊爽快感的玩家來說，這是一款風格鮮明、值得一試的作品。

Black Blood is an action–strategy game that blends tower defense with top-down shooting, developed by Arcane Games and released on Steam on March 21, 2020, with a digital version planned for release on Nintendo Switch in 2026. Featuring retro-style visuals and music, the game portrays a post-apocalyptic sci-fi world completely taken over by artificial intelligence. Its fast-paced structure emphasizes tactical decision-making and resource management, pushing players to think about offense and defense simultaneously under constant pressure.

In terms of narrative, the game depicts a future on the brink of extinction. A rogue AI has swept across the planet, mass-producing synthetic robots that mercilessly уничтож all life. The protagonist is one of the last remaining defenders, tasked with protecting critical beacons that transmit distress signals across the galaxy, warning other civilizations of the impending threat. While the story is not delivered through extensive text or dialogue, the mission objectives and relentless enemy waves effectively convey a sense of isolation and urgency, reinforcing the idea that the fate of the world lies entirely in the player’s hands.

Gameplay combines a top-down shooter perspective with classic tower defense mechanics. Players directly control their character in combat while simultaneously constructing and upgrading defensive towers to withstand waves of robotic and alien invaders. Defeated enemies drop energy particles, which function as a shared resource. These can be used to upgrade five different weapon types, strengthen defensive structures, or enhance the abilities of the assistant drone. Because resources are limited, every decision carries weight—whether to prioritize firepower, fortifications, or support units often determines the outcome of each battle.

A key feature of the game is the assistant drone that accompanies the player throughout the experience. Once upgraded, the drone can automatically attack enemies, heal the player, and repair damaged buildings, making it an indispensable partner on the battlefield. Players must fully leverage its versatility to survive intense encounters while keeping their defensive network intact. Overall, the gameplay successfully merges action, strategy, and survival elements, testing both reflexes and the ability to plan effectively at every stage.

In terms of market reception, Black Blood is a small-scale indie title, but it has gained a measure of attention among fans of tower defense and top-down shooters. Players generally praise the clarity of its core mechanics and its well-paced combat, noting that the fusion of shooting and tower defense creates tense and varied engagements. The retro-inspired visuals and soundtrack have also been widely appreciated for evoking a nostalgic yet cold, dystopian sci-fi atmosphere. However, some players point out that the amount of content and level variety is relatively limited, which can reduce the sense of freshness over extended play sessions.

Overall, Black Blood is a clearly focused and mechanically solid action tower defense shooter. Rather than pursuing a large or complex narrative, it concentrates on combat pacing, meaningful resource choices, and sustained survival pressure. For players who enjoy retro aesthetics, tactical planning under limited resources, and the immediacy of top-down shooting, it stands out as a distinctive experience well worth trying.