Touhou Seirensen ~ Undefined Fantastic Object. similar games & best alternatives

Touhou Seirensen ~ Undefined Fantastic Object. - touhou-seirensen-undefined-fantastic-object_1.avif
Touhou Seirensen ~ Undefined Fantastic Object. - touhou-seirensen-undefined-fantastic-object_2.avif
Touhou Seirensen ~ Undefined Fantastic Object. - touhou-seirensen-undefined-fantastic-object_3.avif
Touhou Seirensen ~ Undefined Fantastic Object. - touhou-seirensen-undefined-fantastic-object_4.avif
Touhou Seirensen ~ Undefined Fantastic Object. - touhou-seirensen-undefined-fantastic-object_5.avif
Touhou Seirensen ~ Undefined Fantastic Object. - touhou-seirensen-undefined-fantastic-object_6.avif

Touhou Seirensen ~ Undefined Fantastic Object.

PC (Microsoft Windows) • 2020

Should you play it?

アレは何だ？　鳥か？　妖精か？ 謎に満ちた未確認幻想物体が、君を未知の世界に誘う！ ファンタスティックでレトロな弾幕シューティング幻想

What works
  • Innovative ufo resource mechanic adds strategic depth
  • High skill ceiling with rewarding mastery
  • Memorable soundtrack and character designs
  • Multiple characters and shot types for varied playstyles
  • Strong replayability and challenge
Things to keep in mind
  • Steep and sometimes inconsistent difficulty spikes
  • Ufo mechanic can be frustrating and tedious
  • Limited accessibility for newcomers
  • No cooperative or social gameplay features
  • Some rng elements affect resource collection

What to play next

Top picks

Games that feel the closest overall

  • Jets'n'Guns Gold

  • Hifuu Nightmare Diary ~ Violet Detector.

  • Doomsday Hunters

  • Warhammer 40,000: Boltgun

  • Star of Providence

  • Touhou Shinreibyou ~ Ten Desires.

  • Atomik: RunGunJumpGun

  • QP Shooting - Dangerous!!

  • ETHER VAPOR Remaster
Hidden Gems

Less popular games with surprisingly high similarity

  • Hifuu Nightmare Diary ~ Violet Detector.

  • Touhou Shinreibyou ~ Ten Desires.

  • Atomik: RunGunJumpGun
If you liked…

Recommendations by what you enjoyed most

From the same developer

From the same developer, ranked by motivational fit.

  • Hifuu Nightmare Diary ~ Violet Detector.

  • Touhou Shinreibyou ~ Ten Desires.

  • Touhou Kishinjou ~ Double Dealing Character.

  • Touhou Kinjoukyou ～ Fossilized Wonders.

  • Touhou Fuujinroku ~ Mountain of Faith.

Similarity map

Explore nearby similar games and see why they’re close.

How to use the graph
Similarity map

Each dot is a game. They are arranged from the same motivation profile as in the “Why this game works” section below. Closer dots usually mean more similar reasons to play (exploration, competition, relaxation, etc.)—not that one game is “better” than another.

  • Purple star: this page’s game — everything on the map is relative to it.
  • Coloured chips: click to highlight games that mainly differ on that motivation; click again to reset.
  • Dotted line: link between this page’s game and the one selected for comparison.
  • Hover a dot for a screenshot preview, score, and top score gaps; click to compare in the panel on the right.
  • Scroll or double-click the chart to zoom out and see more games.

Why don’t the axes read like a score? This view uses t-SNE: it only keeps who is close to whom. The scales are not “good to bad” or hours played—they separate groups on the map. Read distance between dots, not the axis numbers (hidden on purpose).

Touhou Seirensen ~ Undefined Fantastic Object.: Broadly representative of its motivational profile, with a few distinct shifts. Motivations that often define this kind of title include Survival, Violence, Fellowship, Intimacy. Here, the score leans higher than usual among comparable games on Thrill. It leans lower than usual among comparable games on Relaxation, Leadership.

Why this game works

A motivational profile of the game, with the closest similar game for each player motivation.

  • Autonomy

    Game with the same Autonomy vibe

    4

    "Players choose from multiple shot types with unique mechanics and can decide their own playstyle and strategies, indicating high player control and freedom."

    Capsule for Touhou Chireiden ~ Subterranean Animism. Touhou Chireiden ~ Subterranean Animism.

    "Players can choose among multiple characters and shot types with distinct playstyles, and dynamically decide which UFO colors to collect, allowing significant control over gameplay strategy."

  • Competence

    Game with the same Competence vibe

    5

    "The game is skill-based with challenging bullet patterns, requiring memorization and precise dodging; players report satisfaction from mastering difficult stages and bosses."

    Capsule for Touhou Fuujinroku ~ Mountain of Faith. Touhou Fuujinroku ~ Mountain of Faith.

    "The game demands high skill to master complex bullet patterns, resource management, and precise timing, with steep difficulty and rewarding mastery."

  • Competition

    Game with the same Competition vibe

    -3

    "Focus is primarily on individual runs and self-improvement rather than direct player-versus-player competition or leaderboards."

    Capsule for Tower Dominion Tower Dominion

    "Focus is primarily on personal skill improvement and self-set goals like 1CC runs; leaderboards and direct player competition are not emphasized."

  • Continuation

    Game with the same Continuation vibe

    3

    "Players report long playtimes, replayability through achievements and alternate modes, though difficulty may cause frustration."

    Capsule for Rosenkreuzstilette Rosenkreuzstilette

    "Players report long sessions and repeated playthroughs to master mechanics and improve scores, though difficulty can cause frustration."

  • Cooperation

    Game with the same Cooperation vibe

    -5

    "The game is a single-player bullet hell shooter with no cooperative multiplayer elements."

    Capsule for Touhou Fuujinroku ~ Mountain of Faith. Touhou Fuujinroku ~ Mountain of Faith.

    "The game is a single-player bullet hell shooter with no cooperative multiplayer elements."

  • Creativity

    Game with the same Creativity vibe

    3

    "Varied shot types with unique gimmicks and player choice in character and shot type combinations encourage creative approaches to gameplay."

    Capsule for Touhou Chireiden ~ Subterranean Animism. Touhou Chireiden ~ Subterranean Animism.

    "Players experiment with different shot types and UFO collection strategies, though within predefined character abilities and game mechanics."

  • Domination

    Game with the same Domination vibe

    -5

    "No evidence of exerting control or superiority over others; interactions are individual and non-confrontational."

    Capsule for PomoFarm PomoFarm

    "No evidence of exerting control or superiority over others; interactions are individual and non-confrontational."

  • Escapism

    Game with the same Escapism vibe

    4

    "Players use the game as a fun distraction and stress relief with immersive fantasy combat and music."

    Capsule for Spellbook Demonslayers Spellbook Demonslayers

    "Players use the game as a challenging distraction and stress relief, immersing in its fantasy world and music."

  • Expectation

    Game with the same Expectation vibe

    -4

    "Engagement is driven by intrinsic interest and personal desire to master the game rather than obligation."

    Capsule for Pizza Tower Pizza Tower

    "Engagement is driven by intrinsic interest and personal desire to master the game rather than external obligation."

  • Experimenting

    Game with the same Experimenting vibe

    4

    "Game encourages trying different shot types and strategies on the fly."

    Capsule for TouHou Makuka Sai ~ Fantastic Danmaku Festival Part III TouHou Makuka Sai ~ Fantastic Danmaku Festival Part III

    "The unique UFO mechanic and multiple shot types encourage players to try new strategies and adapt dynamically."

  • Exploration

    Game with the same Exploration vibe

    2

    "Some exploration of new maps and scenarios, but mostly familiar environments and known gameplay."

    Capsule for Stronghold: Definitive Edition Stronghold: Definitive Edition

    "Some exploration of new environments and secrets is present, but gameplay mostly involves known stages and memorized patterns."

  • Expression

    Game with the same Expression vibe

    1

    "Character selection and some customization of playstyle provide limited self-expression."

    Capsule for Ball-it Hell Ball-it Hell

    "Limited character customization beyond shot type selection; some self-expression through playstyle choice."

  • Fantasy

    Game with the same Fantasy vibe

    5

    "Set in a fictional fantasy world with magic, mythical elements, and imaginative storytelling."

    Capsule for THE LEGEND OF HEROES: HAJIMARI NO KISEKI THE LEGEND OF HEROES: HAJIMARI NO KISEKI

    "Set in a fictional fantasy world with supernatural characters, imaginative bullet patterns, and mythical story elements."

  • Fellowship

    Game with the same Fellowship vibe

    -5

    "The game is focused on solo play with minimal social interaction or community involvement."

    Capsule for RIVE RIVE

    "The game is focused on solo play with minimal social interaction or community involvement during gameplay."

  • Growth

    Game with the same Growth vibe

    5

    "Strong emphasis on skill acquisition, learning patterns, and personal improvement over time."

    Capsule for Super Hexagon Super Hexagon

    "Strong emphasis on learning, pattern memorization, skill improvement, and mastery over time."

  • Health

    Game with the same Health vibe

    -5

    "Sedentary gameplay typical of bullet hell shooters; no physical activity or health-related features."

    Capsule for 東方幕華祭 TouHou Makuka Sai ~ Fantastic Danmaku Festival 東方幕華祭 TouHou Makuka Sai ~ Fantastic Danmaku Festival

    "Sedentary gameplay typical of bullet hell shooters; no physical activity or health-related features."

  • Idle

    Game with the same Idle vibe

    -4

    "Requires constant attention and focus due to fast-paced, high difficulty gameplay."

    Capsule for Penarium Penarium

    "Requires constant attention and focus due to fast-paced, high-difficulty gameplay."

  • Intimacy

    Game with the same Intimacy vibe

    -5

    "No evidence of forming close relationships or emotional sharing within gameplay."

    Capsule for Devil May Cry 5 Devil May Cry 5

    "No evidence of forming close relationships or emotional sharing within gameplay."

  • Leadership

    Game with the same Leadership vibe

    -5

    "No leadership or group management roles; purely individual gameplay."

    Capsule for Slay the Spire Slay the Spire

    "No leadership or group management roles; purely individual gameplay."

  • Progression

    Game with the same Progression vibe

    4

    "Players accumulate lives, power, and unlock stages and shot types, showing clear progression and resource management."

    Capsule for Touhou Chireiden ~ Subterranean Animism. Touhou Chireiden ~ Subterranean Animism.

    "Players accumulate lives, bombs, power, and score through resource collection and successful play."

  • Relaxation

    Game with the same Relaxation vibe

    -3

    "Game induces frustration and tension due to difficulty; some players find catharsis in overcoming challenges."

    Capsule for The Impossible Game The Impossible Game

    "Gameplay involves sustained tension and challenge; some players find catharsis in overcoming difficulty but overall high stress."

  • Sensation

    Game with the same Sensation vibe

    4

    "Colorful bullet patterns, dynamic music, and fast action provide strong sensory stimulation and excitement."

    Capsule for Gun Wings Gun Wings

    "Vibrant bullet patterns, dynamic music, and visual effects provide strong sensory stimulation and excitement."

  • Status

    Game with the same Status vibe

    -3

    "Recognition mainly within niche community; no broad social status or visibility."

    Capsule for SimplePlanes SimplePlanes

    "Recognition mainly within niche community; no broad social status or popularity mechanisms."

  • Story

    Game with the same Story vibe

    3

    "Narrative and character interactions add context and charm, though story is light and secondary to gameplay."

    Capsule for Awaria Awaria

    "Narrative and character interactions provide context and charm, though story is secondary to gameplay."

  • Strategy

    Game with the same Strategy vibe

    5

    "High mental challenge requiring planning, resource management, and tactical decision-making."

    Capsule for Project Zomboid Project Zomboid

    "High mental challenge involving resource management, pattern recognition, and tactical decision-making."

  • Thrill

    Game with the same Thrill vibe

    5

    "High suspense and adrenaline from bullet hell combat and challenging boss fights."

    Capsule for Enter the Gungeon Enter the Gungeon

    "High suspense and thrill from intense bullet patterns, risk-reward mechanics, and difficult boss fights."

  • Value

    Game with the same Value vibe

    4

    "Players perceive strong value from gameplay depth, replayability, and soundtrack."

    Capsule for BPM: BULLETS PER MINUTE BPM: BULLETS PER MINUTE

    "Players perceive strong value from deep gameplay, replayability, and soundtrack despite high difficulty."

  • Violence

    Game with the same Violence vibe

    3

    "Combat-focused gameplay with emphasis on fighting and defeating opponents; stylized violence."

    Capsule for BlazBlue Centralfiction BlazBlue Centralfiction

    "Combat-focused gameplay with destruction of enemies and bosses; stylized rather than realistic violence."

  • Survival

    Game with the same Survival vibe

    5

    "Core gameplay revolves around avoiding death, managing limited lives and bombs, and surviving increasingly difficult stages."

    Capsule for Touhou Chireiden ~ Subterranean Animism. Touhou Chireiden ~ Subterranean Animism.

    "Core gameplay revolves around avoiding death, managing limited resources, and surviving increasingly difficult stages."

Last update: 11/07/2026