UDONGEIN X

80KS
Released Dec 3, 2021by Bar Holographic OtakuVery Positive(92% of 455 Steam reviews)Recent: 90% positive

Help Reisen Udongein Inaba navigate through 14 action packed stages in this exhilarating 2D Bullet Hell Platformer based on Touhou Project!

Offers

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Official stores

Official stores with direct support.

Steam
SteamOfficial
updated

DLCs (2)

About UDONGEIN X

Lunarians Are Up to Something Again!

A small group of Moon Rabbits has crash landed in Gensokyo. They have been left on their own! It's up to Reisen to (reluctantly) rescue each one of her former comrades and beat some sense into Lunarians once and for all. Do your best, Udon-chan!

14 Unique and Engaging Boss Fights

Every Boss has a gimmick of their own and requires a different strategy! In addition to dodging bullets, you have to respect each Boss' different mechanics if you want to have a chance at winning.

Make Reisen Stronger!

You can invest Power Up items you get from Stages and Bosses into upgrades to make Reisen more powerful. This ranges anywhere from increasing max health to giving you the ability to erase entire screens worth of bullets in your path! Of course, you can ignore this system if you want to challenge yourself.

3 Difficulty Settings

Feel like the game is too hard? You can set the difficulty to Easy if you want a more traditional platformer experience with less bullets on screen. Alternatively you can choose Lunatic for a true test of skill and patience. DISCLAIMER: You have to beat the game at least once to unlock Lunatic difficulty. Changing a difficulty setting requires a reset of your current playthrough.

An Additional Mode

SURVIVAL is a Boss Rush mode where you can select different perks in between fights. It will get progressively harder, so stay sharp! Who knows, maybe if you get a big enough win streak, you might unlock something interesting...

Game details

Game details

Released
Platforms
Controller support
Full
Steam Deck
Playable
Steam rating
Very Positive (92%)

Age ratings

IGRS 13DEJUS 10STEAM_GERMANY 12

Game modes

UDONGEIN X price history

Lowest tracked price: $4.99 (Jul 7, 2026) · current best: $4.99.

UDONGEIN X player count & reviews

92% positive reviews all-time · 3 peak players in the last 30 days.

UDONGEIN X — frequently asked questions

Where can I buy UDONGEIN X at the cheapest price?

Right now the cheapest offer for UDONGEIN X is $4.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price UDONGEIN X has ever been?

The lowest price KingsPrice has tracked for UDONGEIN X is $4.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How many people play UDONGEIN X?

UDONGEIN X peaked at 3 concurrent players on Steam in the last 30 days (highest on Jul 16, 2026). The player chart on this page updates daily.

How can I get UDONGEIN X at a discount?

Create a free price alert on this page and KingsPrice will email you when UDONGEIN X drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • OS *: Windows Vista, 7, 8, 10
  • Processor: Intel Core 2 Duo
  • Memory: 128 MB RAM
  • Graphics: Shader Model 3.0 compatible
  • Storage: 70 MB available space

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