Touhou: Scarlet Curiosity

The Hook & Core Philosophy

Touhou: Scarlet Curiosity is a vibrant, isometric, stage-based action RPG starring the vampire Remilia Scarlet and her elegant maid Sakuya Izayoi. Drawing heavy structural and mechanical inspiration from classic 3D Falcom titles like Ys VI, The Oath in Felghana, and Ys Origin, this title transitions the traditional bullet-hell patterns of the Touhou Project franchise into a fast-paced, real-time hack-and-slash format. Players run, jump, and unleash specialized, character-specific skills through expansive 3D environments, hunting down an elusive, mysterious giant monster while gathering randomized, color-coded loot to boost their stats. Progression is driven by experience levels, equipment drops with varied prefixes, and unlocking customizable skill slots that allow players to change their offensive loadouts on the fly. The game emphasizes aerial mobility and crowd control, presenting players with dense waves of enemies that fire slow-moving, colorful projectile patterns. Designed originally as a doujin title, it focuses on high-speed combat and nostalgic presentation, bridging the gap between bullet-hell arcade design and accessible, level-based console action-adventure design.

Mechanical Architecture & Game Loop

Mechanically, Scarlet Curiosity is a lightweight looter-slasher wrapped in a platform-action template. It divides its gameplay loop between mob clearing, platform exploration, and boss encounters designed to mimic danmaku (bullet hell) patterns. However, the system design suffers from a core tension between its level-based RPG math and its action aspirations. Players find that the equipment drop rates and level-ups quickly trivialize the difficulty curves; high-tier loot drops allow players to overpower encounters via stat-checking rather than mastering execution. The combat feel differs significantly between the two protagonists. Remilia acts as a high-speed brawler who can exploit jump-cancel movement quirks (similar to classic Castlevania mechanics) to fly through long stages, while Sakuya acts as a multi-hit combo specialist whose lack of high-speed traversal tools makes her feel sluggish on the game's expansive, occasionally oversized maps. Stage design features wide-open spaces that try to capture the scale of Gensokyo, but static camera angles paired with aggressive graphical bloom frequently obscure small enemies and incoming projectiles. This visual noise, combined with a camera that struggles to show what is directly beneath or in front of the player during downward-scrolling segments, shifts boss fights away from precise dodging toward aggressive trade-blow strategies fueled by generous healing item drops.

Community Reception & Japanese Player Consensus

• Nostalgic Ys-Like Design Appeal. Japanese players immediately recognized the core loop and game feel as a loving homage to the mid-2000s engine used in Ys VI, Oath in Felghana, and Ys Origin. This specific mechanical template—characterized by snappy jumping, directional attack strings, and top-down isometric platforming—resonates deeply with veteran PC doujin gamers who grew up with that era of Japanese action RPG design.
• Remilia's High-Speed Traversal Quirks. The game gained unexpected attention online for Remilia's movement mechanics. Players discovered that jumping and attacking in rapid succession allows her to bunny-hop at absurd speeds across stages. This exploit, compared affectionately by the Japanese community to 'Akumajo Dracula' speedrunning techniques, turned what could have been tedious backtracking into a hilarious, highly satisfying optimization meta-game.
• Accessible Entry Point for Touhou Fans. While core action enthusiasts find the base difficulty too easy and the late-game grind somewhat repetitive, the Japanese audience highly values the game as a casual, stress-free 'Chara-Ge' (character game). For fans who struggle with the brutal difficulty of official Touhou bullet-hell shooters, this offers an atmospheric, beautifully scored alternative to experience the world of the Scarlet Devil Mansion without the intense mechanical gatekeeping.

Radar Verdict & Steam Accessibility

Buy this if you love the PS2/PSP era of Ys games, want a cozy and casual Touhou fangame with great music, and enjoy simple action-RPG loops. Skip this if you expect complex character action, hate fixed camera perspectives that hide enemies off-screen, or want an intricate, deep end-game progression system.

Language barrier

None (Visual/Action only)

The game features full official English support. Even if played in Japanese, the UI relies on highly intuitive genre staples: sword icons denote attack power, color-coded numbers indicate stat changes on gear, and stage select screens are entirely visual.

Playtime and difficulty

A single campaign run takes about 4 to 6 hours, while achieving the True Ending and completing the post-game dungeon for both characters pushes playtime closer to 12-14 hours. The default difficulty is very easy due to generous item drops and level scaling, though players seeking a challenge can enable 'Danmaku Hell Mode' in the external launcher settings.