Are UDONGEIN X and TOUHOU GAIDEN similar?

They overlap on Action on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.

Does UDONGEIN X run on Steam Deck?

Yes — UDONGEIN X is rated Deck Playable by Valve. TOUHOU GAIDEN doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.

UDONGEIN X vs TOUHOU GAIDEN

UDONGEIN X and TOUHOU GAIDEN both land in Action on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Action games on Steam. UDONGEIN X is Deck Playable on Steam Deck; TOUHOU GAIDEN has no Deck rating yet. No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.

Which should you pick?

Choose UDONGEIN X

Choose UDONGEIN X if you want an Indie experience. UDONGEIN X launched in 2021.

Choose TOUHOU GAIDEN

Choose TOUHOU GAIDEN if it matches what drew you to this matchup.

Both UDONGEIN X and TOUHOU GAIDEN sit in Action on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.

UDONGEIN X vs TOUHOU GAIDEN — Steam metadata comparison
	UDONGEIN X	TOUHOU GAIDEN
Released	2021	—
Genres	Action, Indie	Action
Platforms	Windows	Windows, Linux
Steam Deck	Deck Playable	Unrated
Price	4.99 USD	Price unknown
Steam reviews	91% positive (212 reviews)	—
Multiplayer	Single-player only	Single-player only
Developers	Bar Holographic Otaku	shar dev

Side by side

Both are Action games on Steam.
UDONGEIN X is Deck Playable on Steam Deck; TOUHOU GAIDEN has no Deck rating yet.