Udongein X Seiran
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About Udongein X Seiran
Udongein X Seiran adds Seiran as a playable character to UDONGEIN X, along with her own story.
Frequently asked questions
The best price for Udongein X Seiran is $2.99 at Steam. It is the only shop with an offer that activates in your country.
No. Udongein X Seiran is DLC and only works with Udongein X.
The minimum requirements for Udongein X are: Windows Vista, Intel Core 2 Duo, 128 MB RAM, 70 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Udongein X is a single-player game.
Mostly, yes. Valve rates Udongein X as Playable on the Steam Deck: it runs, but may need some manual setup.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.
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